S~3HSI18nd Hl~OM UE.3!4J!W 'pUEllOH a.3allO) adOH Publisher: Catherine Woods Senior Acquisitions Editors: Kevin Feyen, Renee Altier Associate Marketing Director: Carlise Stembridge Senior Marketing Manager: Katherine Nurre Development Editors: Christine Brune, Nancy Fleming Media Editor: Andrea Musick Photo Editor: Bianca Moscatelli Photo Researchers: Christina Micek, Julie Tesser Art Director, Cover Designer: Babs Reingold Interior Designer: Lissi Sigillo Layout Designer: Lee Ann Mahler Associate Managing Editor: Tracey Kuehn Illustration Coordinator: Bill Page Illustrations: TSI Graphics, Alan Reingold, Matthew Holt, Christy Krames, Shawn Kenney, Bonnie Hofkin, and Demetrios Zangos Production Manager: Sarah Segal Composition: TSI Graphics Printing and Binding: R. R. Donnelley and Sons Cover Painting: Pierre Bannard (1867-1947), The Open Window, 1921 (oil on canvas), Phillips Collection, Washington DC, USA ISBN: 0-7167-6428-8 (case) (EAN: 9780716764281) 0-7167-2831-1 (complimentary) (EAN: 9780716728311) © 2007 by Worth Publishers All rights reserved. Printed in the United States of America First printing 2006 All royalties from the sale of this book are assigned to the David and Carol Myers Foundation, which exists to receive and distribute funds to other charitable organizations. Worth Publishers 41 Madison Avenue New York, NY 10010 www.worthpublishers.com In memory of Phyllis J. Vandervelde (1939-2005) Beloved friend of four decades and manuscript developer for all eight editions of this book, with deep gratitude for her extraordinary commitment to excellence . Grateful acknowledgment is given for permission to reprint the following: Prologue Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Illustration: Gina Triplett c/o FrankSturgesReps; Excerpt: "Human Family," copyright© 1990 by Maya Angelou, from I Shall Not Be Moved by Maya Angelou. Used by permission of Random House, Inc. Illustration: Stephan Daigle; Excerpt: From The Collected Poems of Langston Hughes by Langston Hughes, copyright© 1994 by The Estate of Langston Hughes. Used by permission of Alfred A. Knopf, a division of Random House, Inc. Illustration: Brad Holland; Excerpt: Reprinted by permission of the publishers and the Trustees of Amherst College from The Poems of Emily Dickinson, Thomas H. 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Illustration: Stefano Vitale; Excerpt: Excerpted from "A Prison Daybreak" by Faiz Ahmed Faiz, with grateful acknowledgment Illustration: Robert Frankie c/o theispot.com; Excerpt: From Superman and Me by Sherman Alexie. Los Angeles Times, April 19, 1998. © 1998. Reprinted by permission of the author. Illustration: Family Tree by Antonis Ampatzis, Courtesy of Trinity Gallery, Atlanta, GA; Excerpt: "The Bean Eaters" by Gwendolyn Brooks is reprinted by consent of Brooks Permissions. Illustration: Rafael Lopez c/o theispot.com; Excerpt: Reprinted from Imitation of Life: "On Being Told I Don't Speak Like a Black Person," by permission of Carnegie Mellon University Press© 1999 by Allison Joseph. Illustration: Norma Bliss; Excerpt: "Two Loves" by Will Coffey in I Thought My Father Was God, edited by Paul Auster. Copyright © 2002. Reprinted by permission of the Carol Mann Agency. Illustration: Philippe Lardy; Excerpt: From The Life of Pi by Yann Martel.b (Orlando, FL: Harcourt Books) Originally published in Canada by Random House of Canada. © 2001 . Illustration: Dave Cutler; Excerpt: Remarks by Admiral Dennis Blair, Commander of U.S. Pacific Forces, are gratefully acknowledged. Illustration: Philippe Lardy; Excerpt: "Later" by Audre Lorde From The Cancer journal, © 1980. Reprinted by permission of Regula Noetzli, Literary Agent, affiliate of the Charlotte Sheedy Literary Agency, Inc. Illustration: Philippe Lardy; Excerpt: From "Sonny's Blues" © 1957 by James Baldwin. Originally published in Partisan Review. Copyright Renewed. Collected in Going to Meet the Man, published by Vintage Books. Reprinted by arrangement with the James Baldwin Estate. Illustration: Jon Krause c/o theispot.com; Excerpt: From Sap Rising by Christine Lincoln. (New York: Pantheon Books, 2001) Illustration: Jon Krause c/o theispot.com; Excerpt: The Healers" from Poems From the Same Ghost and Between by Jack Rid!. © 1984 and 1988. Reprinted by permission of the author. Illustration: Rafael Lopez c/o theispot.com; Excerpt: From "Blink Your Eyes" by Sekou Sundiata, with grateful acknowledgment Credits for timeline photos, inside front and back covers (by date) : 1637, Corbis-Bettmann; 1859, Granger Collection; 1878, 1879, 1890, Brown Brothers; 1893, 1894, Wellesley College Archives; 1898, Yale University Library; 1905, Sovfoto; 1913, 1920, 1933, 1939, Archives of the History of American Psychology, University of Akron; 1924, Larsen/Watson Papers, Archives of the History of American Psychology, University of Akron; 1938, Bettmann/Corbis; 1945, Corbis; 1951, Courtesy of Carl Rogers Memorial Library; 1954, Ted Polumbaum/Life magazine, © 1968 TimeWarner, Inc.; 1959, Chris Felver/ Archive Images; 1963, Courtesy of CUNY Graduate School and University Center; 1966 (Johnson), ©Art Shay; 1966 (Garcia), Courtesy of John Garcia; 1971, Courtesy of Albert Bandura, Stanford University; 1974, Russell Fernald, Courtesy of the Stanford University News Service; 1979, Courtesy of Elizabeth Loftus, University of California, Irvine; 1981, Courtesy of the Archives, California Institute of Technology; 1987, Wellesley College Archives; 1993, Chet Snedden/ American Airlines Corporate Communications. , j j About the Author David Myers received his psychology Ph.D. from the University of Iowa. He has spent his career at Hope College, Michigan, where he is the John Dirk Werkman Professor of Psychology and has taught dozens of introductory psychology sections. Hope College students have invited him to be their commencement speaker and voted him "outstanding professor." Myers' scientific articles have, with support from National Science Foundation grants, appeared in more than two dozen scientific periodicals, including Science, American Scientist, Psychological Science, and the American Psychologist. In addition to his scholarly writing and his textbooks for introductory and social psychology, he also digests psychological science for the general public. His writings have appeared in three dozen magazines, from Today's Education to Scientific American. He also has authored five general audience books, including The Pursuit of Happiness and Intuition: Its Powers and Perils. David Myers has chaired his city's Human Relations Commission, helped found a thriving assistance center for families in poverty, and spoken to hundreds of college and community groups. He bikes to work year-round and plays daily pick-up basketball. David and Carol Myers have raised two sons and a daughter. I Brief Contents I Preface x1x Prologue: The Story of Psychology 1 CHAPTER 1 Thinking Critically With Psychological Science 19 CHAPTER 2 Neuroscience and Behavior 53 Motivation and Work CHAPTER 14 Nature, Nurture, and Human Diversity 95 CHAPTER 5 Sensation CHAPTER 6 CHAPTER 16 Psychological Disorders Social Psychology CHAPTER 7 271 CHAPTER 8 313 723 APPENDIX A: Careers in Psychology by Jennifer Lento Learning 639 CHAPTER 18 237 States of Consciousness 595 CHAPTER 17 Therapy 685 197 Perception 139 549 CHAPTER 15 Personality CHAPTER 4 Developing Through the Life Span 469 CHAPTER 13 Emotion 513 Stress and Health CHAPTER 3 A -1 APPENDIX B: Answers to Test Yourself Questions CHAPTER 9 Memory CHAPTER 12 349 CHAPTER 10 Thinking and Language CHAPTER 11 Intelligence 395 B-1 Glossary G-1 References R-1 Name Index NI -1 Subject Index SI -1 431 ix I Contents I Preface XIX (P RO !_Q GU_!_: ) The Story of Psychology Psychology's Roots 2 Prescientific Psychology 2 Psychological Science Is Born 1 Thinking Critically About: Desegregation and the Death Penalty- When Beliefs Collide With Psychological Science so 3 Psychological Science Develops 6 Contemporary Psychology Psychology's Big Debate Frequently Asked Questions About Psychology 44 CHAPTER - '---------..-.-- 8 Neuroscience and Behavior 9 Psychology's Three Main Levels of Analysis Psychology's Subfields 10 Neural Communication Neurons 12 Close-Up: Your Study of Psychology 54 55 How Neurons Communicate 15 57 How Neurotransmitters Influence Us The Nervous System CHAPTER ....._ The Need for Psychological Science The Limits of Intuition and Common Sense 19 19 The Central Nervous System 63 The Endocrine System 65 The Brain 68 70 23 Older Brain Structures The Scientific Method 24 The Cerebral Cortex 26 The Case Study 26 62 67 The Tools of Discovery The Scientific Attitude Description 58 61 The Peripheral Nervous System Thinking Critically With Psychological Science 19 53 Our Divided Brain 74 83 Thinking Critically About: Left Brain/Right Brain 87 The Survey 27 Naturalistic Observation Correlation 29 30 Correlation and Causation Illusory Correlations 32 33 Perceiving Order in Random Events Experimentation 36 Exploring Cause and Effect Evaluating Therapies 34 36 37 Independent and Dependent Variables Statistical Reasoning Describing Data 38 39 40 Making Inferences 42 xi Xii CONTENTS CHAPTER -- 3--:---J Nature, Nurture, and Human Diversity 9 5 Behavior Genetics: Predicting Individual Differences 96 Genes: Our Codes for life Twin Studies Adoption Studies 100 Temperament Studies Heritability 96 97 102 102 Gene-Environment Interaction 104 The New Frontier: Molecular Genetics 105 Evolutionary Psychology: Understanding Human Nature 107 Natural Selection 107 An Evolutionary Explanation of Human Sexuality Critiquing the Evolutionary Perspective Parents and Peers 112 Close-Up: Autism 114 152 Social Development Parents and Early Experiences Peer Influence 110 114 Adolescence 117 154 164 Physical Development 165 Cultural Influences 119 Cognitive Development Variation Across Cultures 120 Social Development 170 Emerging Adulthood 173 Variation Over Time 121 Culture and the Self 121 Adulthood Culture and Child-Rearing 124 Developmental Similarities Across Groups Gender Development The Nature of Gender The Nurture of Gender Social Development 126 131 Continuity and Stages 134 Stability and Change CHAPTER Developing Through the Life Span 139 Prenatal Development and the Newborn 139 Conception 139 Prenatal Development 140 The Competent Newborn 142 Close-Up: Research Strategies for Understanding Infants' Thinking 143 Infancy and Childhood Physical Development Cognitive Development 144 144 147 181 185 Reflections on Two Major Developmental Issues 193 129 Reflections on Nature and Nurture 175 Cognitive Development 126 Gender Similarities and Differences 175 Physical Development 125 167 Hearing 215 193 193 CONTENTS The Ear T: ) 215 The Stimulus Input: Sound Waves 217 States of Consciousness 218 Hearing Loss and Deaf Culture 220 Close-Up: Living in a Silent World 222 Close-Up: A Noisy Noise Annoys Other Important Senses 271 Consciousness and Information Processing Sleep and Dreams 27 4 274 275 Why Do We Sleep? 279 Sleep Disorders 283 Dreams 285 Biological Rhythms 224 The Rhythm of Sleep 224 229 Smell 231 Touch Taste Body Position and Movement 233 Hypnosis Perception 290 291 Facts and Falsehoods •• CHAPTER Is Hypnosis an Altered State of Consciousness? 237 Drugs and Consciousness Selective Attention 2 37 Perceptual Illusions 240 Perceptual Organization Dependence and Addiction Psychoactive Drugs 294 296 296 298 304 Influences on Drug Use 242 Near-Death Experiences 243 Depth Perception 245 Motion Perception 249 Perceptual Constancy 250 309 Form Perception Perceptual Interpretation Perceptual Adaptation Perceptual Set Learning 254 255 257 313 265 Putting ESP to Experimental Test 266 315 316 Extending Pavlov's Understanding 261 264 Premonitions or Pretensions? How Do We Learn? Pavlov's Experiments Is There Extrasensory Perception? Claims of ESP 313 Classical Conditioning 256 Perception and the Human Factor 0 CHAPTER Sensory Deprivation and Restored Vision xiii 264 Pavlov's Legacy 321 323 Close-Up: Trauma as Classical Conditioning Operant Conditioning Skinner's Experiments 326 327 Extending Skinner's Understanding Skinner's Legacy 325 333 336 Contrasting Classical and Operant Conditioning Learning by Observation Bandura's Experiments 339 341 343 Applications of Observational Learning 343 CHAPTER - b Memory 349 The Phenomenon of Memory Information Processing 349 351 Encoding: Getting Information In How We Encode What We Encode 353 356 353 271 XiV CONTENTS Storage: Retaining Information 361 Making Decisions and Forming judgments 401 Thinking Critically About: The Fear Factor- Do We Fear the Right Things? 404 Belief Bias 406 Sensory Memory 362 Working/Short-Term Memory 362 Long-Term Memory 363 Storing Memories in the Brain 364 Language 410 Retrieval: Getting Information Out Retrieval Cues 371 Close-Up: Retrieving Passwords Forgetting 370 Thinking and Language 418 371 Language Influences Thinking Thinking in Images 420 37 5 Encoding Failure 376 Storage Decay 377 Retrieval Failure 378 Do Animals Think? 423 Do Animals Exhibit Language? The Case of the Apes 425 382 Misinformation and Imagination Effects 382 Source Amnesia 384 Discerning True and False Memories 384 Children's Eyewitness Recall 386 Repressed or Constructed Memories of Abuse? (CHAPTER Thinking 10;) 39 5 425 CHAPTER 387 Intelligence 431 What Is Intelligence? 431 391 Thinking and Language Concepts 396 Solving Problems 418 Animal Thinking and Language 423 Memory Construction Improving Memory Language Structure 410 Language Development 412 395 Is Intelligence One General Ability or Several Specific Abilities? 432 Emotionallntelligence 436 Intelligence and Creativity 438 Is Intelligence Neurologically Measurable? 439 Assessing Intelligence 442 397 The Origins of Intelligence Testing 442 Modern Tests of Mental Abilities 444 Principles of Test Construction 446 The Dynamics of Intelligence 450 Stability or Change? 450 Extremes of Intelligence 452 Genetic and Environmental Influences on Intelligence 454 Genetic Influences 455 Environmentallnfluences 457 Group Differences in Intelligence Test Scores The Question of Bias 464 CHAPTER Motivation and Work 469 Perspectives on Motivation 470 Instincts and Evolutionary Psychology Drives and Incentives 471 Optimum Arousal 471 A Hierarchy of Motives 472 470 459 t CONTENTS Expressed Emotion XV 524 Nonverbal Communication 524 Detecting and Computing Emotion 526 Culture and Emotional Expression 528 The Effects of Facial Expressions 530 Experienced Emotion 532 Fear 533 Anger 535 Happiness 537 Close-Up: How to Be Happier 545 Stress and Health Stress and Illness The Physiology of Hunger 474 The Psychology of Hunger 477 Promoting Health The Physiology of Sex 481 The Psychology of Sex 483 Adolescent Sexuality 485 Sexual Orientation 487 Sex and Human Values 493 495 Motivation at Work 498 Close-Up: 1/0 Psychology at Work 500 Personnel Psychology 500 Harnessing Strengths 500 Close-Up: Discovering Your Strengths 501 Organizational Psychology: Motivating Achievement Close-Up: Doing Well While Doing Good: "The Great Experiment" 506 Emotion C H A PTE R Personality 504 13 :) Embodied Emotion 513 516 517 Physiological Differences Among Specific Emotions 518 519 Thinking Critically About: Lie Detection ~-S:D 595 The Psychoanalytic Perspective 596 Exploring the Unconscious 597 The Neo-Freudian and Psychodynamic Theorists 601 Assessing Unconscious Processes 6o2 Evaluating the Psychoanalytic Perspective 604 609 Abraham Maslow's Self-Actualizing Person 609 Carl Rogers' Person-Centered Perspective 610 Assessing the Self 61o Evaluating the Humanistic Perspective 611 Emotions and the Autonomic Nervous System 516 Physiological Similarities Among Specific Emotions Cognition and Emotion 562 The Humanistic Perspective 513 Theories of Emotion 556 Coping With Stress 562 Close-Up: Pets Are Friends, Too 565 Managing Stress 567 Thinking Critically About: Alternative Medicine- New Ways to Health, or Old Snake Oil? 570 Modifying Illness-Related Behaviors 575 Close-Up: For Those Who Want to Stop Smoking 580 Close-Up: For Those Who Want to Lose Weight 589 Sexual Motivation 481 (c H A PTE R 549 Stress and Stressors 550 Stress and the Heart 555 Stress and Susceptibility to Disease Hunger 473 The Need to Belong 549 520 The Trait Perspective Exploring Traits 614 Assessing Traits 615 613 Thinking Critically About: How to Be a "Successful" Astrologer or Palm Reader 616 XVi CONTENTS Rnxiety Disorders 649 Generalized Anxiety Disorder and Panic Disorder 649 Phobias 650 Obsessive-Compulsive Disorder 651 Post-Traumatic Stress Disorder 652 Explaining Anxiety Disorders 653 Thinking Critically About: Dissociation and Multiple Personalities 656 Mood Disorders 658 Major Depressive Disorder 659 Bipolar Disorder 659 Explaining Mood Disorders 66o Close-Up: Suicide 662 Schizophrenia 669 Symptoms of Schizophrenia 669 Subtypes of Schizophrenia 671 Understanding Schizophrenia 672 Personality Disorders The Big Five Factors 618 Evaluating the Trait Perspective 677 Antisocial Personality Disorder 677 Understanding Antisocial Personality Disorder 619 The Social-Cognitive Perspective 623 Rates of Psychological Disorders Reciprocallnfluences 623 Personal Control 625 Close-Up: Toward a More Positive Psychology 628 Assessing Behavior in Situations 629 Evaluating the Social-Cognitive Perspective 630 Therapy 685 Psychoanalysis 686 Humanistic Therapies 689 Behavior Therapies 690 Cognitive Therapies 694 Group and Family Therapies The Benefits of Self-Esteem 632 Culture and Self-Esteem 633 Self-Serving Bias 633 680 lli The Psychological Therapies Exploring the Self 631 678 686 697 Evaluating Psychotherapies 700 Psychological Disorders 639 Perspectives on Psychological Disorders 640 Defining Psychological Disorders 640 Thinking Critically About: ADH D- Pathologizing Rambunctiousness or Genuine Disorder? 641 Understanding Psychological Disorders 642 Classifying Psychological Disorders 644 Labeling Psychological Disorders 645 Close-Up: The "un-DSM": A Diagnostic Manual of Human Strengths 646 Thinking Critically About: Insanity and Responsibility 647 Is Psychotherapy Effective? 700 Thinking Critically About: "Regressing" From Unusual to Usual 701 The Relative Effectiveness of Different Therapies 704 Evaluating Alternative Therapies 705 Commonalities Among Psychotherapies 707 Culture and Values in Psychotherapy 708 Close-Up: A Consumer's Guide to Psychotherapists 709 The Biomedical Therapies 711 Drug Therapies 711 Brain Stimulation 715 Psychosurgery 717 Preventing Psychological Disorders 719 ,..... ~ CONTENTS .xvii J {[P PENDIX A Careers in Psychology by Jennifer Lento R-1 Preparing for a Career in Psychology A-1 The Bachelor's Degree Postgraduate Degrees A -1 A- 2 Subfields of Psychology A-4 Preparing Early for Graduate Study in Psychology A-8 @ PPEND~?' B ) Answers to Test Yourself Questions Glossary G-1 References CHAPTER .._ __ - Name Index NI-1 Social Psychology Social Thinking 723 Subject Index SI-1 723 Attributing Behavior to Persons or to Situations Attitudes and Actions 724 726 Close-Up: Abu Ghraib Prison: An "Atrocity-Producing Situation?" 729 Social Influence 730 Conformity and Obedience Grouplnftuence 731 737 Social Relations 7 42 Prejudice 743 Close-Up: Automatic Prejudice 744 Aggression 749 Close-Up: Parallels Between Smoking Effects and Media Violence Effects 755 Conflict Attraction Altruism 756 758 764 Peacemaking R-1 767 B-1 l I I L I Preface I Two decades of time's ever rolling stream have flowed swiftly by since publication of this book's first edition. And what an amazing two decades it has been. Hardly a day goes by without my feeling gratitude for the privilege of assisting with the teaching of psychology to so many students, in so many countries, through so many different languages. To be entrusted with discerning and communicating t he wisdom of this humanly significant discipline is both an exciting honor and a great responsibility. What sustains my motivation is, first, my continuing appreciation for psychological science and its ever-expanding understandings, and, second, my commitment to the students and teaching colleagues with whom this book enables me to have conversation. I love the mind-expanding learning that comes from my day-to-day reading of psychological science, and I love connecting with so many people (many hundreds of whom have written to share their experiences and gentle words of advice). Although each new edition of this text appears every three years, it is a rare day in between those editions when I do not harvest new information about the field I love and its application to everyday life. Week by week, new information surprises us with discoveries about, for example, the neuroscience of our moods and memories, the reach of our adaptive unconscious, and the shaping power of our social and cultural context. No wonder this book has changed dramatically since I set to work on the first edition 23 years ago. Today's psychological science is more attuned to the relative effects of nature and nurture, to gender and cultural diversity, to our conscious and unconscious information processing, and to the biology that underlies our behavior (see TABLES 1 and 2, page xx). We today can also harness new ways to present information, both in books and via electronic media. These changes are exhilarating! Keeping up with new discoveries fills each day and connects me with many colleagues and friends. The thousands of instructors and millions of students across the globe who have studied this book have contributed immensely to its development. Much of this has occurred spontaneously, through correspondence and conversations. For this edition, we also formally involved over 800 researchers and teaching psychologists, along with many students, in our efforts to gather accurate and up-to-date information about the field of psychology and the content, pedagogy, and supplements needs of instructors and students in the introductory course. Moreover, we look forward to continuing feedback as we strive, over future editions, to create an ever better book. What Continues? Throughout its eight editions, however, my vision for Psychology has not wavered: to merge rigorous science with a broad human perspective in a book that engages both mind and heart. My aim has been to create a state of the art introduction to psychology, written with sensitivity to students' needs and interests. I aspire to help students understand and appreciate the wonder of important phenomena of their lives. I also want to convey the inquisitive spirit in which psychologists do psychology. The study of psychology, I believe, enhances our abilities to restrain intuition with critical thinking, judgmentalism with compassion, and illusion with understanding. Believing with Thoreau that "Anything living is easily and naturally expressed in popular language," I seek to communicate psychology's scholarship with crisp narrative and vivid storytelling. Writing as a solo author, I hope to tell psychology's story in xix XX PREFACE Table 1: Evolutionary Psychology and Behavioral Genetics In addition to the coverage found in Chapter 3, the evolutionary perspective is covered on the following pages: In addition to the coverage found in Chapter 3, behavior genetics is covered on the following pages: Aging, p. 178 Intelligence, pp. 459-461 Language,pp.410,414-415 Abuse, intergenerational transmission of, p. 343 Perception, pp. 254-261 Anxiety disorders, pp. 654-655 Attraction, pp. 111-112, 758-759 Love, p.187 Aggression, p. 749 Psychological disorders: Biological predispositions in learning, pp. 321-323, 335-336 Need to belong, p. 495 Biomedical therapies, pp. 711-718 anxiety disorders, pp. 649-650 Obesity, pp. 581-582 Depth perception, p. 245 Brainstem, p. 71 Overconfidence,p.403 Drives and incentives, p. 471 biopsychosocial approach, p.643 Charles Darwin, p. 9 Puberty, onset of, pp. 173-174 Drug use, pp. 305-307 mood disorders, pp. 658-668 Risk taking, p. 111 Emotion and cognition, pp.521-523 personality disorders, pp. 656-657,677-679 Electromagnetic spectrum, sensitivity to, p. 204 Emotion, pp. 404-405, 529, 530, 534 Emotion-detecting ability, p. 464 Sensation, pp. 198, 224 Sensory adaptation, pp. 202-203, 256 Sexual attraction, pp. 111-112 Personality traits, pp. 619-621 schizophrenia, pp. 669-676 Fear, pp. 534-535 Happiness,pp.542-544 Romantic love, p. 187 Hunger, taste preference, pp.477-478 Sexuality, p. 481 Smell, pp. 231-233 Evolutionary perspective, defined, p.11 Sexual orientation, pp. 490-491 Exercise, p. 569 Sexuality, p. 481 Intelligence, pp. 423, 440, 452-464 Fear, pp. 404-405, 533-534 Signal detection theory, p. 199 Learning, pp. 321-323, 335-336 Hearing, p. 215 Sleep, pp.276,282 Stress, personality, and illness, PP·555-556,559-561,570-571 Motor development, p. 145 Smell, pp. 231-233 Traits, p. 460 Hunger and taste preference, pp.477-478 Obesity and weight control, pp.585-587 Instincts, pp. 47o-471 Stress and the immune system, pp.557-558 Sexual orientation, p. 490-491 Table 2: Neuroscience In addition to coverage found in Chapter 2, neuroscience can be found on the following pages: Antisocial personality disorder, pp.677-678 Fetal alcohol syndrome and brain abnormalities, p. 142 Autism, p. 152 Hallucinations and: Biofeedback, pp. 561-572 sleep, p. 288 Brain activity and hallucinogens, pp. 302-303 aging, pp. 179-180, 183- 185, 376 near-death experiences, p. 309 Hormones and: Mirror neurons, pp. 341-342 Perception: Neuroscience perspective, defined, p. 11 brain damage and, pp. 198, 210-211 Neurotransmitters and: color vision, pp. 212-214 biomedical therapy: depression, pp. 664-665, 713-715 feature detection, pp. 209-210 transduction, p. 115 visual information processing, pp. 208-211 aggression, p. 522 abuse, p. 159 ECT, pp. 715-717 dementia and Alzheimer's, pp. 180-181, 365 development, pp. 129-130, 165-167 obsessive-compulsive disorder, p. 697 Schizophrenia and brain abnormalities, pp. 672-673 psychosurger~ Sensation: disease, p. 220 emotion, pp. 516-517 dreams, pp. 287-288 memory, pp. 365-367 emotion, pp. 166, 233, 366, 517-520,522 sex,pp.129-130,165-166,176, 463.482-483.516 sleep, pp. 275-278 Brain development: adolescence, p. 166-167 pp.717-718 schizophrenia, pp. 672-673, 711-712 child abuse, p. 159 deafness, pp. 22o-221 stress, pp. 516-517, 533, 551-553.555.557.566 depression, pp. 643, 664-665 hearing, pp. 219-221 drugs,pp.298-299.300-303 sensory adaptation, p. 203 weight control, pp. 475-476 exercise, p. 568 smell, pp. 231-233 taste, pp. 229-231 experience and, pp. 114-116 Hunger, pp. 475-476 narcolepsy, p. 284 infancy and childhood, pp.144-145 Insight, p. 398 obsessive-compulsive disorder, p.697 sexual differentiation in utero, p.130 Language, statistical learning, pp.415-417 Consciousness, p. 273 Drug dependence, p. 306 Emotion and cognition, pp.521-522 Fear-learning, p. 654 body position and movement, pp.233-234 Intelligence, pp. 440-441, 455 Memory, physical storage of, pp. 364-366,368,369 s~e~p~283,287-288 Sexual orientation, pp. 489-492 Sleep, schizophrenia, pp. 672-673 memory and, p. 283 smoking, p. 578 recuperation during, pp.282-283 Pain, pp. 226-229 phantom limb pain, pp. 226-227 Parallel vs. serial processing, p. 210 ~ .... "' PREFACE a way that is warmly personal as well as rigorously scientific. I love to reflect on connections between psychology and other realms, such as literature, philosophy, history, sports, religion, politics, and popular culture. And I love to provoke thought, to play with words, and to laugh. Although supplemented by added story telling, this new edition retains its predecessors' voice and much of its content and organization. It also retains the goalsthe guiding principles-that have animated the previous seven editions: 1. To exemplify the process of inquiry I strive to show students not just the outcome of research, but how the research process works. Throughout, the book tries to excite the reader's curiosity. It invites readers to imagine themselves as participants in classic experiments. Several chapters introduce research stories as mysteries that progressively unravel as one clue after another falls into place. (See, for example, the historical story of research on the brain's processing of language on pages 413-417.) 2. To teach critical thinking By presenting research as intellectual detective work, I exemplify an inquiring, analytical mind-set. Whether students are studying development, cognition, or statistics, they will become involved in, and see the rewards of, critical reasoning. Moreover, they will discover how an empirical approach can help them evaluate competing ideas and claims for highly publicized phenomenaranging from subliminal persuasion, ESP, and alternative therapies to astrology, hypnotic regression , and repressed and recovered memories. 3· To put facts in the service of concepts My intention is not to fill students' intellectual file drawers with facts, but to reveal psychology's major concepts-to teach students how to think, and to offer psychological ideas worth thinking about. In each chapter I place emphasis on those concepts I hope students will carry with them long after they complete the course. Always, I try to follow Albert Einstein's dictum that "Everything should be made as simple as possible, but not simpler." 4· To be as up-to-date as possible Few things dampen students' interest as quickly as the sense that they are reading stale news. While retaining psychology's classic studies and concepts, I also present the discipline's most important recent developments. Nearly 500 references in this edition are dated 2004 or 2005. 5· To integrate principles and applications Throughout- by means of anecdotes, case histories, and the posing of hypothetical situations-! relate the findings of basic research to their applications and implications. Where psychology can illuminate pressing human issues- be they racism and sexism, health and happiness, or violence and war- I have not hesitated to shine its light. 6. To enhance comprehension by providing continuity Many chapters have a significant issue or theme that links subtopics, forming a thread that ties the chapter together. The Learning chapter conveys the idea that bold thinkers can serve as intellectual pioneers. The Thinking and Language chapter raises the issue of human rationality and irrationality. The Psychological Disorders chapter conveys empathy for, and understanding of, troubled lives. "The uniformity of a work," observed Edward Gibbon, "denotes the hand of a single artist." Because the book has a single author, other threads, such as behavior genetics and cultural diversity, weave throughout the whole book, and students hear a consistent voice. 1· To reinforce learning at every step Everyday examples and rhetorical questions encourage students to process the material actively. Concepts presented earlier are frequently applied, and thereby reinforced, in later chapters. For instance, in Chapter 5 students learn that much of our information processing occurs outside of our conscious awareness. Ensuing chapters reinforce this concept. Learning Objectives, Learning Outcomes, self-tests, a marginal glossary, and end-of-chapter key terms lists help students master important concepts and terminology. XXi xxii PREFACE 8. To convey respect for human unity and diversity Especially in newly revised Chapter 3, Nature, Nurture, and Human Diversity, but also throughout the book, readers will see evidence of our human kinship-our shared biological heritage, our common mechanisms of seeing and learning, hungering and feeling, loving and hating. They will also better understand the dimensions of our diversity-our individual diversity in development and aptitudes, temperament and personality, and disorder and health; and our cultural diversity in attitudes and expressive styles, child rearing and care for the elderly, and life priorities. What's New? Despite the overarching continuity, there is change on every page. In addition to updates everywhere and 900 new references-comprising 24 percent of the bibliography! have introduced the following major changes to Psychology, eighth edition: Increased Coverage of Cultural and Gender Diversity This edition presents an even more thoroughly cross-cultural perspective on psychology (TABLE 3)-reflected in research findings, and text and photo examples. Coverage of the psychology of women and men is thoroughly integrated (see TABLE 4). In addition, I am working to offer a world-based psychology for our worldwide student readership. Table 3: Cultural and Multicultural Experience From the Prologue to Chapter 18, coverage of culture and multiculture experience can be found on the following pages: rates of, pp. 68o-681 Aging population, pp. 177-178 Dieting, p. 582 Life-expectancy, pp. 177-178 Aggression, pp. 749, 752, 753 Life satisfaction, pp. 538-541 schizophrenia, p. 643 AIDS,pp.190,406,558-559 Drugs, psychological effects of, p.300 Management styles, p. 509 susto, p. 643 Alcoholism, pp. 299-300 Emotion: Marijuana use, p. 307 taijin-kyofusho, p. 643 emotion-detecting ability, pp. 524-525 Marriage, p. 187 Attractiveness, pp. 110-111, 759-762 expressing, pp. 526, 528-531, 536.537 Meditation, pp. 571-572 Psychoanalysis, p. 687 Behavioral effects of culture, pp. 47-48, 103-104 experiencing, pp. 535-536, 537, 540-541 Memory, encoding, pp. 360, 559 Psychotherapists and values, pp. 708-710 Anger, pp. 535-537 Animal research ethics, p. 47 Categorization, p. 397 Medical risk, p. 460 Mental illness rate, p. 68o Enemy perceptions, p. 758 Need to belong, pp. 495-496 Conformity, pp. 731, 733, 734 Flynn effect, pp. 447-448 Obesity, pp. 586-587 Corporal punishment practices, pp.332-333 Gender: Observational learning: Cultural norms, pp. 120, 131-132 Culture and the self, pp. 121-123 Culture context effects, p. 260 Culture shock, pp. 120-121, 553 roles, pp. 131-132 social connectedness, p. 170 Grief, expressing, p. 191 Happiness, pp. 539-541, 543-544 television viewing, p. 160 television and aggression, pp. 344-345 Pace of life, pp. 30, 120-121 Psychotherapy: EMDR training, p. 706 Puberty and adult independence, pp. 173-174 Self-esteem, pp. 543-544, 633 Self-serving bias, p. 634 Sexual attraction, p. 111 Sexual orientation, pp. 487-488 Size-distance relationship, pp. 251-252 Hindsight bias, p. 21 Parapsychology, pp. 264, 268 History of psychology, pp. 3-7 Participative management, p. 509 Homosexuality, views on, p. 27 People with disabilities, p. 539 Social-cultural perspective, pp. 10-13 Human diversity/kinship, PP·47-48,120-124 Perception, pp. 237, 252 Social clock, p. 186 adolescence, p. 165 Hunger, p. 477 Poverty and inequality, p. 31 attachment, pp. 157-161 Individualism/collectivism, pp. 121-124 Prejudice, pp. 743-748 Intelligence, pp. 446-448, 459-461 Psychological disorders: Deaf culture, pp. 83, 86, 88, 220-223,411,412,413-414,417, 420 Depression, p. 662 Development: child-rearing, p. 124 cognitive development, p. 154 developmental similarities, p.125 bias, pp. 464-466 Personal space, p.120 Prejudice prototypes, p. 397 antisocial personality disorder, p.679 moral development, p. 168 Language, pp.119,411,414-415, 418-420 motor development, p. 142 dissociative personality disorder, p. 657 Leaving the nest, pp. 173-174 eating disorders, pp. 478-480, 643 social development, p. 157 Smoking, pp. 575-581 j ~ Stress: adjusting to a new culture, PP·553-554 poverty and inequality /lifeexpectanc~pp.563,564,565 Suicide, p. 662 Teen sexuality, pp. 485-487 Testing bias, pp. 464-466 See also Chapter 18, Social Psychology, pp.722-772 ~ ,. .. ~ PREFACE xx:iii Table 4: The Psychology of Men and Women Coverage of the psychology of men and women can be found in the following pages: Sexual attraction, pp. 111-112 ADHD, p. 641 Fear, p. 534 Life expectancy, p. 178 Aggression, pp. 749, 750 Freud's views, pp. 598-599, 604 Marriage, p. 566 Sexual disorders, p. 482 Alcohol use, pp. 298-300 Maturation, pp. 165-167 Sexual fantasies, pp. 484, 485 Behavioral effects of gender, p. 46 Gender and child-rearing, pp. 132-133. 479. 486 Gender roles, pp. 131-132 Biological sex/gender, pp. 129-130 Body image, p. 479 Autism, p. 152 Changes in physical development, pp.176-177 Menarche, p. 166 Sexual orientation, pp. 487-493 Menopause, pp. 176-177 Sexuality, pp. 110-111, 481-485 Gender prejudice, p. 745 Midlife crisis, pp. 185-186 Sleep, pp. 280, 281 Gendered brain, pp. 130-131, 479, 482,484,492 Obesity, pp. 582-584 Smoking, pp. 111, 141, 579-580 Pornography, pp. 484, 752-754 Social connectedness, pp. 565-566 Generic pronoun "he," p. 419 Prejudice, pp. 397, 745-746 Stereotyping, p. 261 Stress, pp. 555-556 Depression, pp. 659, 667 Happiness, p. 544 Dieting,p~582-583,587 Heart disease, pp. 555-556 Psychological disorders, rates of, pp.68o-681 Dream content, pp. 286-288 Help-receiving, p. 766 Rape,pp.325,753-754 in marriage, pp. 565-566 Drugs and addiction, pp. 299, 300 Hormones and: REM sleep, arousal in, p. 278 sexualabuse,p.566 response, p. 553 Eating disorders, pp. 478-480 aggression, pp. 750 Risk taking, p. 111 Suicide, pp. 662-663 Emotion-detecting ability, pp. 464,526-527 sexual behavior, pp. 482-483 Savant syndrome, pp. 433-434 sexual development, pp. 129-130, 165-167 Schizophrenia, pp. 669, 671 Weight discrimination, pp. 583-584 Women and work, p. 189 Emotional expression, pp. 190, 524-526 Immune system, p. 557 Empty nest, p. 188 Intelligence, pp. 461-464 Father care, pp. 157, 486 Sense of smell, p. 232 Sexualabuse,pp.109,158-159, 299.567 bias, p. 465 Thus, I continually search the world for research findings and text and photo examples, conscious that readers may be in Melbourne, Sheffield, Vancouver, or Nairobi. North American and European examples come easily, given that I reside in the United States, maintain contact with friends and colleagues in Canada, subscribe to several European periodicals, and live periodically in the U.K. This edition, for example, offers 82 explicit Canadian and 142 British examples, and 82 mentions of Australia and New Zealand. We are all citizens of a shrinking world, thanks to increased migration and the growing global economy. Thus, American students, too, benefit from information and examples that internationalize their world-consciousness. And if psychology seeks to explain human behavior (not just American or Canadian or Australian behavior), the broader the scope of studies presented, the more accurate is our picture of this world's people. My aim is to expose all students to the world beyond their own culture. Thus, I continue to welcome input and suggestions from all readers. Our revised Chapter 3, retitled Nature, Nurture, and Human Diversity, encourages students to appreciate cultural and gender differences and commonalities, and to consider the interplay of nature and nurture. Each chapter opening art page now includes a brief literary excerpt from varied cultural perspectives. These excerpts, from Maya Angelou, Judith Ortiz Cofer, Jhumpa Lahiri, Faiz Ahmed Faiz, Gwendolyn Brooks, and others offer "Another Voice" on the chapter's topic. In addition, many new photos showcase the diversity of cultures within North America, as well as across the globe. In addition to significant crosscultural examples and research presented within the narrative, these new photos with informative captions freshen each chapter and broaden students' perspectives in applying psychological science to their own world and to the worlds across the globe. A Revised and Thoroughly Considered Pedagogical Program In addition to the new chapter-opening literary excerpts, this edition includes the following new study aids. • New numbered Learning Objectives introduce significant sections of text (around 15-30 per chapter) and direct student reading. These Learning Objectives organize the Study Guide and the Test Banks and are listed in the Instructor's Resources. Women in psychology, p. 6 See also Chapter 18, Social Psychology, pp.722-771 XXiV PREFACE • New Learning Outcomes, found at the end of each major section of text, repeat the Learning Objectives and address them with a narrative summary. • The Learning Outcomes sections also include at least one Ask Yourself question, which encourages students to apply new concepts to their own experiences. • Chapter-ending Review sections contain 3-5 short-answer Test Yourself questions (with answers in an appendix) that assess student mastery and encourage big picture thinking, followed by page-referenced Terms and Concepts to Remember. Greater Emphasis on the Biological-PsychologicalSocial/Cultural Levels of Analysis Approach in Psychology This edition now systematically includes coverage of the biological, psychological, and social-cultural influences on our behavior. A significant new section in the Prologue introduces the levels-of-analysis approach, setting the stage for future chapters, and new levels-of-analysis figures in most chapters help students understand concepts in the biopsychosocial context. Richard Straub's new, accompanying interactive Visual Concept Review booklet also includes levels-of-analysis visual summary reviews. Greater Sensitivity to the Clinical Perspective With helpful guidance from clinical psychologist colleagues, I have been more mindful in this edition of the clinical angle on various concepts within psychology, which has sensitized and improved the Personality, Psychological Disorders, and Therapy chapters, among others. For example, I now cover problem-focused and emotionfocused coping strategies in the Stress and Health chapter, and the Intelligence chapter includes several mentions of how intelligence tests are used in clinical settings. New Teaching and Learning Resources Our supplements and media have been celebrated for their quality, abundance, and accuracy. The package available for Psychology, Eighth Edition, raises the bar even higher. New media items include the ActivePsych classroom activity CD-ROMs, the new Online Study Center 2.0 for students, and enhanced course management solutions. New print supplements include Martin Bolt's Instructor's Media Guide, Richard Straub's Visual Concept Reviews, and a thoroughly revised Test Bank. See page xxvi for details. ~ New Careers in Psychology Appendix, by Dr. jennifer Lento, University Of San Diego This highly applied and research-based appendix provides guidance to students considering a psychology major and/ or career. Topics covered include the benefits of studying psychology and obtaining a psychology degree, psychology careers available and the job market landscape for students at all levels (bachelors, masters, doctorate), career options within the sub-fields in psychology (such as clinical, counseling, community, school, forensic, and sports psychology), and early preparation tips for those considering graduate school. ..... J Enhanced Critical Thinking Coverage I aim to introduce students to critical thinking in a very natural way throughout the book, with even more in the narrative that encourages active learning of psychology's key concepts. In addition to the new Learning Objectives and Learning Outcomes, which encourage critical reading to glean an understanding of important concepts, the eighth edition includes the following opportunities for students to learn or practice their critical thinking skills. 'IOj PREFACE XXV • Chapter 1 takes a unique, critical thinking approach to introducing students to psychology's research methods, emphasizing the fallacies of our everyday intuition and common sense and, thus, the need for psychological science. Critical thinking is introduced as a key term in this chapter (p. 24). The discussions of Statistical Reasoning encourages students to "focus on thinking smarter by applying simple statistical principles to everyday reasoning" (pp. 3 9-40). • ~~Thinking Critically About ... " boxes are found throughout the book, modeling for students a critical approach to some key issues in psychology. For example, see the new box "Thinking Critically About: ADHD-Pathologizing Rambunctiousness or Genuine Disorder?" on p. 641. • Detective-style stories throughout the narrative get students thinking critically about psychology's key research questions. 11 • Apply this" and 11Think about it" style discussions keep students active in their study of each chapter. • Critical examinations of pop psychology spark interest and provide important lessons in thinking critically about everyday topics. See TABLE 5 for a complete list of this text's coverage of critical thinking topics and Thinking Critically About boxes. Table 5: Critical Thinking and Research Emphasis Critical thinking coverage, and in-depth stories of psychology's scientific research process, can be found on the following pages: ~ , ,. , r .... Thinking Critically About . .. boxes: Critiquing the evolutionary perspective, pp. 112-113 Thinking Critically with Psychological Science: Why do we dream?, pp. 287-289 Desegregation and the Death Penalty-When Beliefs Collide With Psychological Science, p.5o How great is the power of parenting?, pp. 116-117 The limits of intuition and common sense, pp. 19-22 Is hypnosis an altered state of consciousness?, pp. 294-295 Sensory restriction, pp. 255-256 "Critical thinking" introduced as a key term, p. 24 How do we store memories in our brains?, pp. 364-369 The scientific attitude, pp. 23-24 Left Brain/Right Brain, p. 87 Is there extrasensory perception?, pp.264-268 The scientific method, pp. 24-26 Memory construction, pp. 382-390 Lie Detection, pp. 520-521 Can hypnosis enhance recall? Coerce action? Be therapeutic? Alleviate pain?, pp-292-293 Correlation and causation, PP·32-33 Do animals exhibit language?, pp.425-428 Alternative Medicine: New Ways to Health or Old Snake Oil?, pp.570-571 Has the concept of "addiction" been stretched too far?, pp.297-298 Illusory correlation, pp. 33-34 How to Be a "Successful" Astrologer or Palm Reader, pp.616-617 Near-death experiences, pp. 309-310 Why do we feel hunger?, PP·474-477 What determines sexual orientation?, pp. 488-493 The Fear Factor-Do We Fear the Right Things?, pp. 404-405 ADH D- Pathologizi ng Rambunctiousness or Genuine Disorder?, p. 641 Do animals exhibit language?, pp.425-428 Evaluating therapies, pp. 37-38 Statistical reasoning, pp. 39-40 Making inferences, pp. 42-44 The pursuit of happiness: Who is happy, and why?, pp. 537-545 Insanity and Responsibility, p.648 Scientific Detective Stories: Why-and in whom-does stress contribute to heart disease?, pp. 555-556 Spirituality and faith communities, pp. 572-575 Dissociation and Multiple Personalities, pp. 656-657 Is breast milk better than formula?, pp. 36-37 How and why is social support linked with health?, pp. 564-567 How valid is the Rorschach test?, pp.602-603 Language in the brain, pp. 80-82 Our divided brains, pp. 83-88 Self-esteem versus self-serving bias, pp. 633-636 The twin and adoption studies, pp.97-101 What causes mood disorders?, pp.658-668 How a child's mind develops, pp.147-154 Do prenatal viral infections increase risk of schizophrenia?, pp.673-674 Is repression a myth?, pp. 604-605 Is Freud credible?, pp. 604-607 ... Exploring cause and effect, pp.36-37 Is aerobic exercise therapeutic?, pp.567-569 "Regressing" from Unusual to Usual, p. 701 .. Why do we sleep?, pp. 279-283 Critical Examinations of Pop Psychology: Post-traumatic stress disorder, pp.652-653 Do Video Games Teach or Release Violence?, pp. 754-756 Is psychotherapy effective?, pp. 700-705 Perceiving order in random events, pp. 34-35 Evaluating alternative therapies, pp.705-707 Do we use only 10 percent of our brains?, pp. 79-80 Aging and intelligence, pp. 183-185 Parallel processing, pp. 210-211 How do we see in color?, pp.212-214 Is psychotherapy effective?, PP·700-705 Why do people fail to help in emergencies?, pp. 765-766 XXVi PREFACE Innovative Multimedia Supplements Package Psychology, Eighth Edition, boasts a host of new electronic and print supplements titles. Media Supplements New! ActivePsych Instructor's Classroom Exercise CD-ROMs include interactive activities designed for in-class presentation and group participation, as well as a robust library of new clips and animations. These activities require very little instructor preparation (just load the CD and launch the activity) and are designed to foster class discussion and critical thinking. The ActivePsych suite of instructor presentation CO-ROMs includes the following: • More than 30 interactive activities, including animations, video clips, illustrations, photographs, and critical thinking questions. A number of activities have been adapted from Martin Bolt's Instructor's Resources and Thomas Ludwig's PsychSim 5.0 (and are now classroom presentation-friendly). ActivePsych also includes a significant number of completely original, creative activities, all authored (and class-tested) by veteran introductory psychology teachers. • Approximately 30 completely new short video clips, drawn from a variety of sources, and numerous new animations. • New! Scientific American Frontiers Teaching Modules, Third Edition, which have been housed in ActivePsych and edited by Martin Bolt. The Third Edition offers you 15 edited clips from Scientific American Frontiers segments produced between 2003-2005. HOW 00 NEURONS COMMUNICATE WITH ONE ANOTHER? A•QUT New! Instructor's Media Guide (based on trusted Instructor's Resources author Martin Bolt's work) expands the Lecture Guides and offers instructors a simple way to incorporate instructor media, presentation, and video resources into their course. New! Online Study Center 2.0 for Psychology, Eighth Edition The customized Online Study Center ( OSC) offers students a variety of tools to help them master the course: j j J .. ~ PREFACE ~ Welcome to the Online Study Center ... where students can test their understanding of key concepts and follow their progress through the introductory psychology course! Featuring Study Plans that integrate interactive resources and tutorials, the OSC offers students a sophisticated online learning experience with tools to address their individual needs. About • • • • , ,.. ,.. r• ... ....... ,... .... Take a Guided Tourt How to Use This Site System Requirements More about the Online Study Center ;'fi Check Your Understanding Take a Sell-Test, work through a detailed Study Plan, and take additional Self-Tests to determine your overall mastery of the material. \:&} Browse Resources By Chapter Get quick, chapter-based access to interactive resources and assessments. student register > mstructor register >> log in ~ '' Search Resources By Topic Enter a term or phrase and we'll search our multimedia library for all related resources. ~'r Create a List of "Favorites" Save and add notes to your favorite resources for future reference. • A Chapter-by-Chapter Self-Guided Study Plan with Diagnostic Tests. Students may take a 20-25 question Self-Test to assess their current knowledge of a particular chapter, then view a Study Plan that identifies areas of weakness and offers a variety of resources for learning those concepts. • Self-Paced Tutorials that allow students to revisit and master course concepts on their own. • Multiple Assessment and Review Tools, organized by chapter. In addition to the Study Plan, students can Search by Topic or Browse by Chapter to access interactive demonstrations and review materials. • Dozens of Hands-On Activities. Your students will be able to tackle classic experiments (condition a rat, probe the hypothalamus electronically), encounter perceptual illusions, test their memory, interpret facial expressions, and more. • Digitized Video Demonstrations (for example, the effects of teratogens on development) and Animations (such as neural communication) bring text concepts to life. • A Sophisticated Search Engine (similar to Google®) that allows students to search quickly by topic (not just by chapter). • Interactive Study Tools. Students are able to add resources to their Favorites and even add Notes to specific resources . New! Enhanced Course Management Solutions (WebCT, Blackboard, Desire2Learn, Angel) allow adopters to access all of this edition's teaching and learning resources in one, central location (through their course management system) through one, seamless, guided experience. New! eLibrary for Psychology, Eighth Edition brings together the supplementary resources, such as the Instructor's Resources, PsychSim 5.0, and PsychOnline, in a single, easy-to-use Web site. Through sophisticated and seamless search and browse functions, the eLibrary allows instructors to quickly build free, premium student Web pages, construct lectures, and organize resources . New! Expanded and Improved Book Companion Site The Psychology, Eighth Edition, Book Companion site offers students a virtual study guide, twenty-four hours a day, seven days a week. Best of all, these resources are free and do not require xxvii :xxviii PREFACE any special access codes or passwords. In addition to self-tests, review materials, annotated web links, simulations, and demonstrations, the site now includes an interactive, historical timeline and new Spanish-English Flashcards. The passwordprotected Instructor Site offers a full array of teaching resources, including a new suite of Power Point slides, electronic Lecture Guides, an online quiz grade book, and links to additional tools. New! iclicker Radio Frequency Classroom Response System Offered by Worth Publishers, in partnership with iClicker and available for fall 2006 classes, iClicker is Worth's new polling system, created by educators for educators. This radio frequency system is the hassle-free way to make your class time more interactive. The system allows you to pause to ask questions and instantly record responses, as well as take attendance, direct students through lectures, gauge your students' understanding of the material, and much more. Revised! Instructor's Resource CD-ROM Customized for Psychology, Eighth Edition, this CD-ROM contains pre-built PowerPoint presentation slide sets for each chapter, a digital photograph library, an electronic version of Martin Bolt's Instructor's Resources and Lecture Guides, and a complete illustration library. A new intuitive browser interface makes it easy to preview and use all elements in this CD-ROM. • Chapter Art PowerPoint® Slides feature all of the text art and illustrations (including tables, charts, and graphs) within the Power Point format. This program also offers a number of layered PowerPoint slides for key biological and process diagrams. • Revised! Lecture PowerPoint® Presentation Slides Developed by a longtime adopter of Psychology and informed by 20 reviewers, these slides focus on key concepts and themes from the text. The slides feature tables, graphs and figures from the text and from outside sources. • New! Step Up to Psychology: A PowerPoint Review Game by john Schulte, University of North Carolina-Wilmington. This PowerPoint-based review adopts a gameshow approach where students divide into teams to compete for points by answering questions related to chapter material. The questions are ranked for difficulty (four levels), and include both factual/ definitional and conceptual/ application questions. • New! Digital Photo Library gives you access to all of the photographs from the eighth edition, organized by chapter. PsychSim 5.0, Thomas Ludwig, Hope College, CD-ROM and Booklet These 42 interactive simulations involve students in the practice of psychological research by having them play the role of experimenter (conditioning a rat, probing the hypothalamus electrically, working in a sleep lab) or participant (responding to tests of memory or visual illusions, interpreting facial expressions). Other simulations provide dynamic tutorials or demonstrations. In addition, 5-question multiple choice quizzes are available for each activity on the Companion Web site. Psychlnquiry for Psychology, Eighth Edition: Student Activities in Research and Critical Thinking CD-ROM, Thomas Ludwig, Hope College Customized to work specifically with this new edition, this CD-ROM contains dozens of interactive activities designed to help students learn about psychological research and to improve their critical thinking skills. PsychOnline (Course Management Version), Thomas Ludwig, Hope College Housed in both WebCT and Blackboard, PsychOnline is a comprehensive instructor and student online solution for introductory psychology. Designed for use as a supplement for either web-enhanced lecture courses or complete online courses, Psych Online offers a rich, web-based collection of interactive tutorials and activities for introductory psychology. j j J J ...I j ~ PREFACE xxix PsychOnline 2.0 (Web-Based Version), Thomas Ludwig, Hope College PsychOnline 2.0 is a comprehensive online resource for introductory psychology. PsychOnline 2.0 looks like a Worth Web site, includes more than 100 interactive tutorials and over 2 50 activities, and also contains the following new features: • A Web-based interface that is easy to use and incorporate within your course • A self-guided study plan that includes a multiple-choice Diagnostic Test for each topic. After the student completes the Diagnostic Test, the student is given a Diagnostic Test Report that offers test results and suggestions for re-examining and studying material. • 20 modules from Thomas Ludwig's PsychSim 5.0 Diploma Computerized Test Bank (Available in Windows and Macintosh on One CD-ROM) The CD-ROM allows you to add an unlimited number of questions, edit questions, format a test, scramble questions, and include pictures, equations, or multimedia links. With the accompanying grade book, you can record students' grades throughout a course, sort student records and view detailed analyses of test items, curve testS, generate reports, add weights to grades, and more. This CD-ROM is the access point for Diploma Online Testing. Blackboard and WebCT formatted versions of the Test Bank are also available within the Course Cartridge and ePack. Diploma Online Testing at www.brownstone.net With Diploma, you can easily create and administer exams over the Internet, with questions that incorporate multimedia and interactivity. Students receive instant feedback and can take the quizzes multiple times. Instructors can sort and view results, and can take advantage of various grade book and result-analysis features, as well as restrict tests to specific computers or time blocks. ~ ,... r . ~ Online Quizzing at worthpublishers.com/myers Now you can easily and securely quiz students online using prewritten multiple-choice questions for each chapter. Students receive instant feedback and can take the quizzes multiple times. As the instructor, you can view results by quiz, student, or question, or you can get weekly results via email. Worth Image and Lecture Gallery at www.worthpublishers.com/ilg Using the Image and Lecture Gallery, you can browse or search and download text art, illustrations, outlines, and pre-built PowerPoint slides for ALL Worth titles. Users can also create personal folders for easy organization of the materials. Video/DVD Resources New! Moving Images: Exploring Psychology Through Film Available in VHS and DVD and edited by Martin Bolt (Calvin College), this completely new series (drawn from the Films for the Humanities and Sciences) contains 25 one-to-eight minute clips of real people, real experiments, and real patients. The series combines historical footage with cutting-edge research and news programming. Highlights include: "Brain and Behavior: A Contemporary Phineas Gage," "Firewalking: Mind Over Matter," and "Social Rejection: The Need to Belong." ... ... Moving Images: Exploring Psychology Through Film (edited by Martin Bolt) ... XXX PREFACE Scientific American Frontiers Teaching Modules, Third Edition (edited by Martin Bolt) New! Scientific American Frontiers Teaching Modules, Third Edition. Housed on ActivePsych Instructor's Classroom Exercise CO-ROMs and also available separattely on CD-ROM, DVD, and VHS, this series was edited by Martin Bolt (Calvin College). The Third Edition of this acclaimed series offers you 15 new clips from contemporary segments produced between 2003-2005. Featuring Alan Alda, the series presents both current research and real-world applications, and offers yet another terrific way to encourage discussion and debate in your introductory psychology course. Worth Digital Media Archive (available in dual platform CD-ROMs, VHS, and DVD) This rich presentation tool contains 42 digitized video clips of classic experiments and research. Footage includes Bandura's Bobo doll experiment, Takooshian's bystander studies, Piaget's conservation experiment, Harlow's monkey experiments, and Milgram's obedience studies. The Digital Media Archive CDROM clips are available in MPEG for optimal visual presentation, and are compatible with PowerPoint. Psychology: The Human Experience Teaching Modules This series includes more than 3 hours of footage from the Introductory Psychology telecourse, Psychology: The Human Experience, produced by Coast Learning Systems in collaboration with Worth Publishers. Footage contains noted scholars, the latest research, and striking animations. The Many Faces of Psychology Video (available in VHS and DVD) Created and written by Frank J. Vattano, Colorado State University, and Martin Bolt, Calvin College (produced by the Office of Instructional Services, Colorado State University), this video is a terrific way to begin your psychology course. The Many Faces of Psychology introduces psychology as a science and a profession, illustrating basic and applied methods. The 22-minute video presents some of the major areas in which psychologists work and teach. Scientific American Frontiers Video Collection, Second Edition (available in VHS and DVD) Hosted by Alan Aida, these 8-12 minute teaching modules from the highly praised Scientific American series feature the work of such notable researchers as Steve Sumi, Renee Baillargeon, Carl Rosengren, Laura Pettito, Steven Pinker, Barbara Rothbaum, Bob Stickgold, Irene Pepperberg, Marc Hauser, Linda Bartoshuk, and Michael Gazzaniga. The Mind Video Teaching Modules, Second Edition (available in VHS and DVD) Edited by Frank J. Vattano, Colorado State University, with the consultation of j ·~ • J ~ PREFACE Charles Brewer, Furman University, and myself in association with WNET, these 3 5 brief, engaging video clips dramatically enhance and illustrate your lectures. Examples include segments on language processing, infant cognitive development, genetic factors in alcoholism, and living without memory (featuring a dramatic interview with Clive Wearing). The Brain Video Teaching Modules, Second Edition (available in VHS and DVD) Edited by Frank J. Vattano and Thomas L. Bennet from Colorado State University, and Michelle Butler, from the United States Air Force Academy, this collection of 32 short clips provides vivid examples for myriad topics in introductory psychology. Print Supplements for Instructors ~ ~ .. ~ ~ ~ .. New! Significantly Revised and Enhanced Printed Test Bank, Volumes 1 and 2, John Brink, Calvin College Broken down into two volumes of tests, the Test Bank provides over 5,000 multiple-choice factual/ definitional, conceptual/ application, and conceptual questions, plus essay questions. In response to review input from over a dozen reviewers, Brink has changed the number of distracters from 5 to 4 to avoid confusion, and he has carefully edited each question for effectiveness and comprehension. As a result, this eighth edition set includes over 20 percent new and significantly revised questions. Each question is keyed to a learning objective from the text, page-referenced to the text, and rated for level of difficulty. Also included are copies of the Student Book Companion site quizzes. The first Test Bank includes optional questions from the Study Guide (for instructors who incorporate or require the Study Guide in their courses) . The second Test Bank includes optional questions on key Worth media tools, such as PsychSim 5.0, The Brain and The Mind video series, the Scientific American videos, the Digital Media Archive, and Moving Images: Exploring Psychology Through Film. New! Instructor's Media Guide: This handy guide quickly and visually organizes the extensive instructor and student media resources available for Psychology, Eighth Edition, including every video, animation, student web activity (including PsychSim), Power Point®, and more-all organized by chapter. Instructor's Resources, Martin Bolt, Calvin College (also available electronically within the eLibrary) Well-known in the psychology community for its comprehensiveness and innovative teaching ideas, Martin Bolt's revised Instructor's Resources feature more than 30 percent new, revised, and updated material and include the following: • Outline of Resources, organized by text topic, includes the relevant Instructor Resource items by type (classroom exercise, lecture/ discussion topic, etc.) with appropriate Instructor Resource page number. • Chapter Objectives from the text highlight main concepts and terms and detail the key points of each text chapter. They can be used as essay questions in classroom examinations. Test Bank and Study Guide fill-in questions are keyed to the Objectives. • Chapter Outlines follow the major text section headings (with page references), providing relevant instructional materials for each topic-including dozens of ready-to-use detailed lecture/discussion ideas, student projects, classroom exercises (many with ready-to-use handouts for in- or out-of-class use), and suggestions about how to use the videos provided by Worth Publishers (see above), PsychSim modules, and feature films (as they apply to psychological concepts discussed in the text). Note that the films and videos from other sources are outlined in the Book Companion site. Other Web sites are also listed and described here and the feature film descriptions are repeated on the Book Companion site. Martin Bolt's Lecture Guides, available in both print and easily modifiable Microsoft Word formats (as well as at the end of the Instructor's Resources), offer you a XXXi :xxxii PREFACE terrific integrating resource for lecture preparation. For each text chapter, the Lecture Guides summarize the main ideas by major section and by Learning Objective. The Lecture Guides also list the lecture/ discussion topics, exercises, projects, feature films, transparencies, PsychSim modules, and video segments (from the Worth library) that complement the topics within each major section. Overhead Transparencies Our transparency set includes over 150 text images, charts, and tables from Psychology, Eighth Edition, and other sources. Print Supplements for Students New! Visual Concept Reviews, Richard Straub, University of MichiganDearborn This full-color booklet-available for free when shrink-wrapped with the book or Study Guide-offers fill-in-the-blank style concept charts that allow students to apply their understanding of the concepts to real-life situations (with answers in an appendix). Some of the Concept Reviews focus on the biopsychosocial approach, thus extending the levels of analysis theme that I have further applied in the text for this edition. Study Guide, Richard Straub, University of Michigan-Dearborn Following the text's content, Richard Straub offers a Chapter Overview and Chapter Review, divided by major section (each group of fill-in-the-blank and short-essay questions is preceded by the relevant Learning Objective from the text). The Study Guide also includes three self-tests (one of which encourages students to think critically about the chapter's concepts), answers (with page references for the self-tests and explanations of why a choice is correct or incorrect), and a Focus on Language and Vocabulary section, which explains idioms and other phrases from the text that may not be clear to some readers. Pursuing Human Strengths: A Positive Psychology Guide, Martin Bolt, Calvin College By using the scientific method in its efforts to assess, understand, and then build human strengths, positive psychology balances the investigation of weakness and damage with a study of strength and virtue. This brief Positive Psychology Guide gives instructors and students alike the means to learn more about this relevant approach to psychology. Critical Thinking Companion, Second Edition, Jane Halonen, University of West Florida, and Cynthia Gray, Alverno College Tied to the main topics in Psychology, this engaging handbook includes six categories of critical thinking exercises: pattern recognition, practical problem solving, creative problem solving, scientific critical thinking, psychological reasoning, and perspective taking, which connect to the six categories used in the Critical Thinking Exercises available in the Student Study Guide. Scientific American Reader I hand picked these 14 classic and current articles to provide another tool for enhancing lectures, encouraging discussions, and emphasizing the relevance of psychology to everyday life. Scientific American Mind This special issue explores riveting breakthroughs in neuroscience and related fields, and investigates, analyzes, and reveals new thinking on: Dreaming and Consciousness, Intelligence and Cognition, Imagination and Emotions, Depression and Mental Illness, and Perception and Understanding. Improving the Mind and Brain: A Scientific American Special Issue This singletopic issue from Scientific American magazine features findings from the most distinguished researchers in the field. Scientific American Explores The Hidden Mind: A Collector's Edition This collector's edition includes feature articles that explore and reveal the mysterious inner workings of our minds and brains. ~ ~ ~ PREFACE xxx:iii In Appreciation If it is true that "whoever walks with the wise becomes wise" then I am wiser for all the wisdom and advice received from expert colleagues. Aided by nearly a thousand consultants and reviewers over the last two decades, this has become a better, more accurate book than one author alone (this author, at least) could write. As my editors and I keep reminding ourselves, all of us together are smarter than any one of us. My indebtedness continues to each of the teacher-scholars whose influence I acknowledged in the seven previous editions, and also to the innumerable researchers who have been so willing to share their time and talent to help me accurately report their research. This new edition also benefited from the creative input and assistance of Jennifer Peluso, Florida Atlantic University, in revising Chapters 9 (Memory) and 10 (Thinking and Language). My gratitude extends to the colleagues who contributed criticism, corrections, and creative ideas related to the content, pedagogy, and format of this new edition and its supplements package. For their expertise and encouragement, and the gifts of their time to the teaching of psychology, I thank the reviewers, consultants, and focus group participants listed below. t Julie Allison, Pittsburg State University Suzanne Brayer, North Canyon High School Kathleen Cramm, Community College of Aurora Aneeq Ahmad, Henderson State University June Breninger, Cascade College Katherine Demtrakis, Albuquerque Technical Vocational Institute Emir Andrews, Memorial University Gayle Brosnan-Watters, Slippery Rock University Vicki Dilillo, Ohio Wesleyan University Willow Aureala, University of Hawaii Center, West Hawaii Jay Brown, Southwest Missouri State University Roberta Eveslage, johnson County Community College Debra K. Bagley, Mount Aloysius College Michelle A. Butler, United States Air Force Academy Ellie Ezatti, Santa Monica College David Barkmeier, Northeastern University Hazel Caldwell, Central Georgia Technical College Gaithri Fernando, California State University, Los Angeles Marcelle Bartolo-Abela, Holyoke Community College Cari Cannon, Santiago Canyon College Gloria Fisher, Mississippi College Scott Bates, Utah State University William Canu, University of Missouri-Rolla jim Frailing, Neenah High School Rochelle Battersby, Sanford H. Calhoun High School Maureen Carrigan, University of South Carolina Aiken Sue Frantz, Highline Community College Susan Becker, Mesa State University Pamela Carroll, Three Rivers Community College Rick Froman, john Brown University Stefanie Bell, Pikes Peak Community College Richard G. Cavasina, California University of Pennsylvania Gary Gargano, Merced College Suzanne T. Bell, DePaul University Gabriela Chavira and her graduate student teachers, California State University-Northridge Carol B. George, St. johns School Sheryl Bereziuk, Grande Prairie Regional College f t I I ~ ~ ,.... Denise Berg, Santa Monica College Kathleen Bey, Palm Beach Community College Patricia Bishop, Cleveland State Community College Marilyn Blumenthal Farmingdale State University Linda Bradford, Community College of Aurora Dorothy Chin, Santa Monica College Stephen M. Colarelli, Central Michigan University Kaye Cook, Gordon College Mary Coplen, Hutchinson Community College Pamela Costa, Tacoma Community College Andrew R. Getzfeld, New jersey City University Kristy Gould, Luther College David Gramling, Austin Preparatory School Nicholas Greco, College of Lake County Toby Green, Santa Monica College laura Gruntmeir, Redlands Community College XXXiV PREFACE Mary Hannah, University of Detroit Mercy Jann Longman, Liberty High School William H. Overman, University of North Carolina, Wilmington Peg Hanson, College of Lake County Wade C. Lueck, College of Eastern Utah Dan Patanella, john jay College of Criminal justice Chris Heavey, University of Nevada-Las Vegas Angie Mackewn, University of Tennessee at Martin Marcus D. Patterson, University of Massachusetts-Boston Paul Hillock, Algonquin College laura Madson, New Mexico State University Marilyn Patterson, Lindenwood University len Hudzinski, Lake Tahoe Community College Brian Malley, University of Michigan Andrew Peck, Pennsylvania State University Steven lsonio, Golden West College Nancy B. Mann, Southern Wesleyan University jennifer Peluso, Florida Atlantic University Charles lvey, Winter Park High School Cindy Marriot, Schoolcraft College Pete Petersen, Johnson County Community College Maria Janicki, Douglas College jerry Marshall, Green River Community College john Petraitis, University of Alaska Robert jensen, California State University-Sacramento Diane Martichuski, University of Colorado Boulder Stephen Phillips, Broward Community College Andrew T. Johnson Park University Cathy Matresse, North Idaho College and Bay Mills Community College Michelle Pilati, Rio Hondo College Suzanne R. jones, Webster University Oscar joseph Harm, University of South Carolina Aiken Misty Hull, Pikes Peak Community College Wendy Kallina, Macon State College Cindy Kamilar, Pikes Peak Community College jeffry Kellogg, Marian College Arthur D. Kemp, Central Missouri State University Raymond Kilduff, Community College of Rhode Island Rosalyn King, Northern Virginia Community College-Loudon Kristina T. Klassen, North Idaho College Gary Klatsky, SUNY Oswego Timothy Klitz, Washington and Jefferson College Jean E. Kubeck, Adams State College Samuel H. lamb Ill, Tidewater Community College Claudia Lampman, University of Alaska jackie Lanum, Santa Monica College Elizabeth levin, Laurentian University Deborah Licht, Pikes Peak Community College Rachelle Lipschultz, Anne Arundel Community College Nancey lobb, Alvin Community College Donna Wood McCarty, Clayton State University David McCone, United States Air Force Academy lisa McCone, Pine Creek High School Donna McEwen, Friends University lesley Mcintyre, SUNY Cobleskill Polly McMahon, Spokane Falls Community College jennifer Meehan Brennom, Kirkwood Community College Joni Mihura, University of Toledo Antoinette Miller, Clayton College and State University jeannie Mitchell, Rend Lake College Mark Mitchell, Clarion University of Pennsylvania Marta Mohr, Kilian Community College joann Morgan, Albuquerque Technical Vocational Institute Karlyn Musante, Santa Monica College Barbara Nash, Bentley College Nathaniel Naughton, Arlington Catholic High School Michael Nelson, University of Missouri-Rolla Benjamin Newberry, Kent State University Cynthia O'Dell, Indiana University Northwest Peggy O'Neii-Chromey, Northfield Mount Hermon School Colleen Pilgrim, Schoolcraft College Debbie Podwika, Kankakee Community College Scott Pious, Wesleyan University Kathryn Potoczak, Saint Lawrence University Michael Poulin, University of California-Irvine Psi Chi Honors Society and other students, Montana State University jennifer Puente, William Rainey Harper College Diane Quartarolo, Union Institute and University Christopher Randall, Troy University, Montgomery Campus louise Rasmussen, Wright State University judith S. Rauenzahn, Kutztown University Celia Reaves, Monroe Community College Brad Redburn, johnson County Community College Darrel Regier, American Psychiatric Association leonard Riley, Pikes Peak Community College Alan Rob'erts, Indiana University june Rosenberg, Lyndon State College Steve Rouse, Pepperdine University lisa Routh, Pikes Peak Community College Patricia Sampson, University of Maryland Eastern Shore j J ~ "" PREFACE Don Saucier, Kansas State University Ross B. Steinman, Rowan University Jeanne M. Viviani, LaGuardia Community College Sherry Schnake, Saint Maryofthe Woods College Betsy Stern, Steven L. Voss, Moberly Area Community College John Schwoebel, Cazenovia College Robby Stewart, Oakland University Dennis Wanamaker, Bellevue Community College Eric Seelau, Indiana University of Pennsylvania Christine Sutow, Rio Hondo College Kathryn M. Wescott, juniata College jane Sheldon, University of Michigan- Dearborn Amy Sweetman, Los Angeles City College Fred Whitford, Montana State University Mark Sibicky, Marietta College Patricia Toney, Sandhi/Is Community College Gordon Whitman, Tidewater Community College Cynthia Silovich, Fargo South High School Meral Topcu-LeCroix, Ferris State University Eric Wiertelak, Maca/ester College David Simpson, Valparaiso University Michael Trumbull, Pikes Peak Community College jacquie Witsberger, Wheeling jesuit University Stephanie Smith, Indiana University Northwest Gopakumar Venugopalan, University of Alaska Leland Woodson, Kwantlen University College Mnw~~eA~a~~nk~~~~ At Worth Publishers a host of people played key roles in creating this eighth edition. Although the information gathering is never ending, the formal planning began as the author-publisher team gathered for a two day retreat in October, 2004. This happy and creative gathering included John Brink, Martin Bolt, Thomas Ludwig, Richard Straub, and me from the author team, along with my assistant Kathryn Brownson and manuscript developer Phyllis Vandervelde. We were joined by Worth Publishers' publisher Catherine Woods; editors Christine Brune, Renee Altier, Nancy Fleming, Tracey Kuehn, and Betty Probert; and sales and marketing executives Kate Nurre, Tom Kling, Guy Geraghty, Greg David, and Chuck Linsmeier. The input and brainstorming during this meeting of minds gave birth, among other things, to the new pedagogy in this edition, and to the thoroughly revised Chapter 3, Nature, Nurture, and Human Diversity. Christine Brune, chief editor for the last six editions, is a wonder worker. She offers just the right mix of encouragement, gentle admonition, attention to detail, and passion for excellence. An author could not ask for more. Renee Altier, who is now the Director of Product and New Business Development for Bedford, Freeman, and Worth Publishers, helped connect me with many colleagues throughout the revision process, and spearheaded a creative new photo program. Renee also played an essential role in expanding and improving the impressive multimedia supplements that accompany this edition. As Renee's supportive role shifted, she passed the baton for editorial management of our teaching package to acquisitions editor, Kevin Feyen, with whom we are pleased to now be working. Development editor Nancy Fleming is one of those rare editors who is gifted both at "thinking big" about a chapter-and with a kindred spirit to my own-while also applying her sensitive, graceful, line-by-line touches. Nancy also displayed her gifts in leading the creation of the new Learning Objectives and Learning Outcomes. Publisher Catherine Woods helped construct and execute the plan for this new edition and its supplements. Catherine was also a trusted sounding board as we faced the myriad discrete decisions along the way. Media and Supplements Editor Andrea Musick coordinated production of the huge supplements package for this edition. Betty Probert efficiently edited and produced the print supplements, and, in the process, also helped fine-tune the whole book. Editorial Assistants Sarah XXXV .xxxvi PREFACE Berger and Matthew Driskill provided invaluable support in commissioning and organizing the multitude of reviews, mailing information to professors, and numerous other daily tasks related to the book's development and production. Lee Mahler did a splendid job of laying out each page. Patricia Marx, Bianca Moscatelli, Christina Micek, and Julie Tesser worked together to locate the myriad new photographic illustrations. Associate Managing Editor Tracey Kuehn displayed tireless tenacity, commitment, and impressive organization in leading Worth's gifted artistic production team and coordinating editorial input throughout the production process. Production Manager Sarah Segal masterfully kept the book to its tight schedule, and Babs Reingold skillfully directed creation of the distinctive design and art program. Production Manager Stacey Alexander, along with supplements production editor Eve Conte, did their usual excellent work of producing the many supplements. To achieve our goal of supporting the teaching of psychology, this teaching package not only must be authored, reviewed, edited, and produced, but also made available to teachers of psychology. For their exceptional success in doing that, our author team is grateful to Worth Publishers' professional sales and marketing team. We are especially grateful to Associate Marketing Director Carlise Stembridge and Senior Marketing Manager Kate Nurre both for their tireless efforts to inform our teaching colleagues of our efforts to assist their teaching, and for the joy of working with them. At Hope College, the supporting team members for this edition included Kathryn Brownson, who researched countless bits of information, proofed hundreds of pages, and, with the assistance of Sara Neevel and Megan Rapelje, prepared the bibliography and name index. Kathryn has become a knowledgeable and sensitive advisor on many matters. With diligence and delight, Travis Goldwire and Erin Darlington supported all of Kathryn's efforts by sleuthing information, photocopying, and proofreading. Laura Luchies helped compile the cross-reference table on new coverage of gender in this edition, and Laura Meyers updated, with page citations, all the cross-reference tables. Manuscript developers Phyllis and Richard Vandervelde worked faithfully to enter or revise every one of the more than 400,000 words. Over more than two decades they have processed some 10 million words of two dozen text editions and trade books, with timely diligence, a passion for excellence, a guiding voice, and an infectious joy. Amid the pleasures of creating this new edition was the enormous sadness, after four decades of close family and professional friendship, of losing Phyllis to cancer. Even its associated pain could not, however, deter her from completing her last chapter less than two weeks before her death. Because of this unexpected loss, we are especially grateful to Marilyn Essink and Sara Neevel for so ably stepping in to do the meticulous completion of Psychology, Eighth Edition. Again, I gratefully acknowledge the influence and editing assistance of my writing coach, poet Jack Ridl, whose influence resides in the voice you will be hearing in the pages that follow. He, more than anyone, cultivated my delight in dancing with the language, and taught me to approach writing as a craft that shades into art. After hearing countless dozens of people say that this book's supplements have taken their teaching to a new level, I reflect on how fortunate I am to be a part of a team on which everyone has produced on-time work marked by the highest professional standards. For their remarkable talents, their long-term dedication, and their friendship, I thank Martin Bolt, John Brink, Thomas Ludwig, and Richard Straub. Finally, my gratitude extends to the many students and instructors who have written to offer suggestions, or just an encouraging word. It is for them, and those about to begin their study of psychology, that I have done my best to introduce the field I love. j j ~ ~ ~ ~ ,.... PREFACE The day this book went to press was the day I started gathering information and ideas for the ninth edition. Your input will again influence how this book continues to evolve. So, please, do share your thoughts. _r- -) ~~ Hope College Holland, Michigan 49422-9000 USA davidmyers. org xxxvii Prologue: The Story of Psychology • Psychology's Roots Prescientific Psychology Psychological Science Is Born Psychological Science Develops • Contemporary Psychology Psychology's Big Debate Psychology's Three Main Levels of Analysis Psychology's Subfields Close-Up: Your Study of Psychology ui have made a ceaseless effort not to ridicule, not to bewail, not to scorn human actions, but to understand them." Benedict Spinoza, A Political Treatise, 1677 "What's it like being married to a psychologist?" people occasionally ask my wife. "Does he use his psychology on you?" "So, does your Dad, like, analyze you?" my children have been asked many times by friends. "What do you think of me?" asked one barber, hoping for an instant personality analysis after learning that I was a psychologist. For these questioners, as for most people whose exposure to psychology comes from popular books, magazines, and TV, psychologists analyze personality, offer counseling, and dispense child-rearing advice. Do they? Yes, and much more. Consider some of psychology's questions that from time to time you may wonder about: Have you ever found yourself reacting to something just as one of your biological parents would- perhaps in a way you vowed you never would-and then wondered how much of your personality you inherited? To what extent are person-to-person differences in personality predisposed by one's genes? To what extent by the home and neighborhood environments? Have you ever played peekaboo with a 6-month-old and wondered why the baby finds the game so delightful? The infant reacts as though, when you momentarily move behind a door, you actually disappear-only to reappear later out of thin air. What do babies actually perceive and think? Have you ever awakened from a nightmare and, with a wave of relief, wondered why you had such a crazy dream? How often, and why, do we dream? Have you ever wondered what leads to school and work success? Are some people just born smarter? Does sheer intelligence explain why some people get richer, think more creatively, or relate more sensitively? Have you ever become depressed or anxious and wondered whether you'll ever feel "normal"? What triggers our bad moods-and our good ones? Have you ever worried about how to act among people of a different culture, race, or gender? In what ways are we alike as members of the human family? How do we differ? Such questions provide grist for psychology's mill because psychology is a science that seeks to answer all sorts of questions about us all: how we think, feel, and act . .>(. 0 A smile is a smile the world around Throughout this book, you will see examples not only of our cultural and gender diversity but also of the similarities that define our shared human nature. People in different cultures vary in when and how often they smile, but a smile means the same thing anywhere in the world. "' ~ ~ :::. > ~ ~ g;, 5 t: .. j;: .s: .... > ~ "'0 ~ ~:: .>t. g c ~ 'iii :::2.':' u., ~.§ J t: ~ 1 2 PROLOGUE: THE STORY OF PSYCHOLOGY Psychology's Roots Throughout the text you will find Objectives to help focus your reading, and at the end of each major section, the learning Outcomes will help you review what you've read. Throughout the text, important concepts are boldfaced. As you study, you can find these terms with their definitions in a nearby margin and in the Glossary at the end of the book.- OBJEC~IVE 1 1Define psychology. Once upon a time, on a planet in your neighborhood of the universe, there came to be people. Soon thereafter, these creatures became intensely interested in themselves and in one another. They wondered, Who are we? From where come our thoughts? Our 11 feelings? Our actions? And how are we to understand-and to master or manage-those around us?" Psychology's answers to these wanderings have developed from international roots in philosophy and biology into a science that aims to describe and explain how we think, feel, and act. Today we define psychology as the scientific study of behavior and mental processes. Let's unpack this definition. Behavior is anything an organism does-any action we can observe and record. Yelling, smiling, blinking, sweating, talking, and questionnaire marking are all observable behaviors. Mental processes are the internal, subjective experiences we infer frorp. behavior-sensations, perc~p­ tions, dreams, thoughts, beliefs, and feelings. The key word in psychology's definition is science. Psychology, as I will emphasize in Chapter 1 and throughout this book, is less a set of findings than a way of asking and answering questions. As a science, psychology evaluates competing ideas with ' careful observation and rigorous analysis. In its attempt to describe and explain human nature, psychological science welcomes hunches and plausible-sounding theories. And it puts them to the test. If a theory works-if the data support its predictions-so much the better for that theory. If the predictions fail, the theory will be revised or rejected. My aim in this text, then, is not merely to report results but also to show you how psychologists play their game. You will see how researchers evaluate conflicting opinions and ideas. And you will learn how all of us, whether scientists or simply curious people, can think smarter when describing and explaining the events of our lives. But first, let's consider the roots of today's psychology to help us appreciate psychologists' varied perspectives. Prescientific Psychology OBJECTIVE 2 I Trace psychology's prescientific roots, from early understandings of mind and body to the beginnings of modern science. psychology the scientific study of behavior and mental processes. empiricism the view that (a) knowledge comes from experience via the senses, and (b) science flourishes through observation and experiment. We can trace many of psychology's current questions back through human history. These early thinkers wondered: How do our minds work? How do our bodies relate to our minds? How much of what we know comes built in? How much is acquired through experience? In India, for example, Buddha pondered how sensations and perceptions combine to form ideas. In China, Confucius stressed the power of ideas and of an educated mind. In ancient Israel, Hebrew scholars anticipated today's psychology by linking mind and emotion to the body; people were said-to think with their hearts and feel with their bowels. ' In ancient Greece, the philosopher-teacher Socrates ( 469-3 99 B.CJ 'and his student Plato ( 428-348 B.C.) concluded tnatmind is separable from body and continues after the body dies, and that knowledge is innate-born within us. As Socrates lay dying, Plato's future student, a teenager named Aristotle (384-322 B,c.), was developing a sharp mind in another part of Greece. Aristotle's love of data distinguished him from Socrates and Plato, who derived principles by logic. An intellectual anc!estor of today' s scientists, Aristotle derived principles from careful observations. His observations told him that "tnesoul is not separable from the body, and the same holds good of particular parts of the soul" (De Anima). Moreover, he said knowledge·is not preexisting (sorry, Socrates and Plato); instead, it grows from the experie~ces stored in our memories. PROLOGUE: THE STORY OF PSYCHOLOGY t,. ;. .,. The next 2000 years brought few enduring new insights into human nature, but that changed in the 1600s, when modern science began to flourish. With it came new theories of human behavior, and new versions of the ancient debates. A frail but brilliant Frenchman named Rene Descartes (1595-1650) agreed with Socrates and Plato about the existence of innate ideas and the mind's being ~~entirely distinct from the body" and able to survive its death. Descartes' concept of mind forced- hfmto conjecture, as people have ever since, how the immaterial mind and physical body communicate. ~tist as well as a philosopher, Descartes dissected animals and concluded that the fluid in the bfarn's CaVities-contained ~~animal spirits." These spirits, he surmised, flowed from the brain through what we call· the nerves (which he thought were hollow) to the muscles, provoking movement. Memories formed as experiences opened pores in the brain, into which the animal spirits also flowed. Descartes was right that nerve paths are important and that they enable reflexes. Yet, genius though he was, and standing upon the knowledge accumulat~d from 99+ percent of our human history, he hardly had a clue of what today's average 12-year-old knows. Indeed, most of the scientific story of our self-exploration-the story told in this book's chapters-has been written in but the last historical eye blink of human time. Meanwhile, across the English channel in Britain, science was taking a more downto-earth form, centered on experiment, experience, and common-sense judgment. ~ Francis Bacon (1561-1626) became one of the founders of modern science, and his 0\ influence lingers in the experiments of today's psychological science. Bacon also was fa-scinated by the human mind and its failings. Anticipating what we have come to appreciate about our mind's hunger to perceive patterns even in random events, he ' wrote that 14 the human understanding, from its peculiar nature, easily supposes a greater degree of order and equality in things than it really finds" (Novum Organuum). He also foresaw research findings on our noticing and remembering events that confirm our beliefs: 14All superstition is much the same whether it be that of astrology, dreams, omens ... in all of which the deluded believers observe events which are fulfilled, but neglect and pass over their failure, though it be much more common." Some 50 years after Bacon's death, gohn-Locke (1632-1704), a British political philosopher, sat down to write a one-page essay on 14 0Ur own abilities" for an upcoming discussion with friends. After 20 years and hundreds of pages, Locke had completed one of history's latest and greatest late papers (An Essay Concerning Human Understanding), in which he famously argued that the mind at birth is a blank slatea uwhite paper" -on which experience writes. This idea, adding to Bacon's ideas, helped form modern empiricism, the view that knowledge originates in experience and that science should, therefore, rely on observation and experimentation . 3 A seventeenth-century view of nerves In his Treatise of Man, Descartes proposed the hydraulics of a simple reflex. J ..... ..... Psychological Science Is Born OBJECTIVE j I Explain how the early psychologists sought to understand the ' ( mind's structure and functions, and identify some of the leading psychologists who worked in these areas. Jl>- ~ ~ Jl>- ~ Philosophers' thinking about th~nking continued until the birth of psychology as we know it, on a December day in 1879, in a small room on the third floor of a shabby building at Germany's .University of Leipzig. There, two young men were helping an austere, middle-~ged professor, Wilhelm Wundt, create an experimental apparatus. Their machine measured the time lag between people's hearing a ball hit a platform and their pressing a telegraph key (Hunt, 1993). Later, the researchers compared this lag with the time required for slightly more complex tasks. Curiously, people responded in about one-tenth of a second when asked to press the key as soon as the sound occurred-and in about two-tenths of a second when asked to press the key as soon as they were consciously aware of perceiving the sound. (To be aware of one's awareness Information sources are cited in parentheses, with name and date, then provided fully in the References·section at the book's end. 4 PROLOGUE: THE STORY OF PSYCHOLOGY Wilhelm Wundt Wundt (far left) established the first psychology laboratory at the University of Leipzig, Germany. takes a little longer.) Wundt was seeking to measure "atoms of the mind" -the fastest and simplest mental processes. Thus began what many consider psychology's first experiment, launching the first psychological laboratory, staffed by Wundt and psychology's first graduate students. Before long this new science of psychology became organized into different branches, or schools of thought, each promoted by pioneering thinkers. These early schools included structuralism and functionalism, described here, and Gestalt psychology, behaviorism, and psychoanalysis, described in later chapters. Thinking About the Mind's Structure structuralism an early school of psychology that used introspection to explore the elemental structure of the human mind. Soon after receiving his Ph.D. in 1892, Wundt's student Edward Bradford Titchener joined the Cornell University faculty and introduced structuralism. As physicists and chemists discerned the structure of matter, so Titchener aimed to discover the elements of mind. His method was to engage people in self-reflective introspection (looking inward), training them to report elements of their experience as they looked at a rose, listened to a metronome, smelled a scent, or tasted a substance. What were j J Edward Bradford Titchener Used introspection to search for the mind's structural elements. 1 PROLOGUE: THE STORY OF PSYCHOLOGY their immediate sensations, their images, their feelings? And how did these relate to one another? Titchener shared with the English essayist C. S. Lewis (1960, pp. 18-19) the view that "there is one thing, and only one in the whole universe which we know more about than we could learn from external observation." That one thing, Lewis said, is ourselves. "We have, so to speak, inside information." Alas, structuralism waned as introspection waned. Introspection required smart, verbal people. It also proved somewhat unreliable, its results varying from person to person and experience to experience. Moreover, recent studies indicate that people's recollections frequently err. So do their self-reports about what, for example, has caused them to help or hurt another (Myers, 2002). Often we just don't know why we feel what we feel and do what we do. functionalism a school of psychology that focused on how mental and behavioral processes function - how they enable the organism to adapt. survive. and flourish. You don't know your own mind." Jonathan Swift, Polite Conversation, 1738 Thinking About the Mind's Functions ,. .. Unlike those hoping to assemble the structure of mind from simple elements-which was rather like trying to understand a car by examining its disconnected partsphilosopher-psychologist William James thought it more fruitful to consider the evolved functions of our thoughts and feelings. Smelling is what the nose does; thinking is what the brain does. But why do the nose and brain do these things? Under the influence of evolutionary theorist Charles Darwin, James assumed that thinking, like smelling, developed because it was adaptive-it contributed to our ancestors' survival. Consciousness serves a function. It enables us to consider our past, adjust to our present circumstances, and plan our future. As a functionalist, James encouraged explorations of down-to-earth emotions, memories, will power, habits, and moment-to-moment streams of consciousness. James' greatest legacy, however, came less from his laboratory than from his Harvard teaching and his writing. When not plagued by ill health and depression, James was an impish, outgoing, and joyous man, who once recalled that "the first lecture on psychology I ever heard was the first I ever gave." During one of his wise-cracking lectures, a student interrupted and asked him to get serious (Hunt, 1993). He was reportedly one of the first Amerlcan professors to solicit end-of-course student evaluations of his teaching. He loved his students, his family, and the world of ideas, but tired of painstaking chores such as proofreading. "Send me no proofs!" he once told an editor. "I will return them unopened and never speak to you again" (Hunt, 1993, p. 145). James displayed the same spunk in 1890, when-over the objections of Harvard's president-he admitted Mary Calkins into his graduate seminar (Scarborough & ~ ... ~ .... ~ ~ .... .... .... 5 William James and Mary Whiton Calkins james. legendary teacher-writer. mentored Calkins. who became a pioneering memory researcher and American Psychological Association president. 6 PROLOGUE: THE STORY OF PSYCHOLOGY Margaret Floy Washburn The first woman to receive a psychology Ph.D.; synthesized animal behavior research in The Animal Mind. humanistic psychology historically significant perspective that emphasized the growth potential of healthy people; used personalized methods to study personality in hopes of fostering personal growth. Sigmund Freud Famed personality theorist and therapist, whose controversial ideas influenced humanity's self-understanding. Furumoto, 1987). When Calkins joined, all the other students dropped. (In those years women lacked even the right to vote.) So James tutored her alone. Later she finished all the requirements for a Harvard Ph.D., outscoring all the male students on the qualifying exams. Alas, Harvard denied her the degree she had earned, offering her instead a degree from Radcliffe College, its undergraduate sister school for women. Calkins resisted the unequal treatment and refused the degree. More than a century later, psychologists and psychology students were lobbying Harvard to posthumously award the Ph.D. she earned (Feminist Psychologist, 2002). Calkins nevertheless became a distinguished memory researcher and the American Psychological Association's (APA's) first female president in 1905. What a different world from the recent past-1996 to 2005when women claimed two-thirds or more of new psychology Ph.D.s and were 5 of the 10 elected presidents of the science-oriented American Psychological Society. In Canada and Europe, too, most recent psychology doctorates have been earned by women. When Harvard denied Calkins the claim to being psychology's first female psychology Ph.D., that honor fell to Margaret Floy Washburn, who later wrote an influential book, The Animal Mind, and became the second female APA president in 1921. Although Washburn's thesis was the first foreign study Wundt published in his journal, her gender meant she was barred from joining the organization of experimental psychologists founded by Titchener, her own graduate adviser (Johnson, 1997). James' influence reached even further through his dozens of well-received articles, which moved the publisher Henry Holt to offer a contract for a textbook of the new science of psychology. James agreed and began work in 1878, with an apology for requesting two years to finish his writing. The work proved an unexpected chore and actually took him 12 years. (Why am I not surprised?) More than a century later, people still read the resulting Principles of Psychology and marvel at the brilliance and elegance with which James introduced psychology to the educated public. Psychological Science Develops OBJECTIVE I Describe the evolution of psychology as defined· from the 1920s through today. This young science of psychology developed from the more established fields of philosophy and biology. Wundt was both a philosopher and a physiologist. James was an American philosopher. Ivan Pavlov, who pioneered the study of learning, was a Russian physiologist. Sigmund Freud, who developed an influential th.eory of personality, was an Austrian physician. Jean Piaget, the last century's most influential observer of children, was a Swiss biologist. This list of pioneering psychologists"Magellans of the mind," as Morton Hunt (1993) has called themillustrates psychology's origins in many disciplines and countries. The rest of the story of psychology-the subject of this book-develops at many levels. With activities ranging from psychotherapy to the study of nerve cell activity, psychology is not easily de~ Wundt and Titchener focused on inner sensations, images, and feelings. James, too, engaged in introspective examination of the stream of consciousness and of emotion. Freud emphasized the ways emotional j J ~ , ~ PROLOGUE: THE STORY OF PSYCHOLOGY John B. Watson and Rosalie Rayner B. F. Skinner Working with Rayner, Watson championed psychology as the science of behavior and demonstrated conditioned responses on a baby who became famous as "Little Albert." A leading behaviorist, who rejected introspection and studied how consequences shape behavior. responses to childhood experiences and our unconscious thought processes affect our behavior. Thus, until the 1920s, psychology was defined as "the science of mentallife." From the 19 20s into the 1960s, American psychologists, initially led by flamboyant and provocative John B. Watson and later by the equally provocative B. F. Skinner, dismissed introspection and redefined psychology as "the scientific study of observable behavior." After all, said these behaviorists, science is rooted in observation. You cannot observe a sensation, a feeling, or a thought, but you can observe and record people's behavior as they respond to different situations. Humanistic psychology was a softer, 1960s response to Freudian psychology and to behaviorism, which pioneers Carl Rogers and Abraham Maslow found too mechanistic. Rather than calling up childhood memories or focusing on learned behaviors, Rogers and Maslow both emphasized the importance of current environmental influences on our growth potential, and the importance of meeting our needs for love and acceptance. In the 1960s, psychology began to recapture its initial interest in mental processes through studies of how our mind processes and retains information. This cognitive revolution supported ideas developed by earlier psychologists, such as the importance of considering internal thought processes, but it expanded upon those ideas to explore scientifically the ways we perceive, process, and remember information. Cognitive psychology and more recently cognitive neuroscience (the study of the interaction of thought processes and brain function) has been especially beneficial in helping to develop new ways to understand and treat disorders such as depression, as we shall see in Chapter 16. To encompass psychology's concern with observable behavior and with inner thoughts and feelings, we define psychology today as the scientific study of behavior and mental processes. 7 Psychology's scope and history In her quilt, "Crazy About Psychology," Nancy S. Breland, a psychology professor at the College of New jersey, captures images and people from psychology's first century. 8 PROLOGUE: THE STORY OF PSYCHOLOGY ) ) LEARNING OUTCOMES Psychology's Roots OBJECTIVE 1 1Define psychology. Psychology is the scientific study of behavior (anything an organism does) and mental processes (subjective experiences inferred from behavior). The key word in this definition is science. 2 I Trace psychology's prescientific roots, from early understandings of mind and body to the beginnings of modern science. OBJECTIVE Psychology traces its roots back through recorded history to India, China, the Middle East, and Europe, where many scholars spent their lives wondering about people. In their attempt to understand human nature, they looked carefully at how our minds work and how our bodies relate to our minds. More than 2000 years ago, Buddha and Confucius focused on the powers and origin of ideas. In other parts of the world, the ancient Hebrews, Socrates, his student Plato, and Plato's student Aristotle pondered whether mind and body are connected or distinct, and whether human ideas are innate or result from experience. In the 1600s, Rene Descartes and John Locke reengaged aspects of those ancient debates, and Locke coined his famous description of the mind as a "white paper." The ideas of Francis Bacon and John Locke were important ingredients in the development of modern empiricism, the view that knowledge comes from experience through the senses and that science should rely on observation and experimentation. OBJECTIVE 3 I Explain how the early psychologists sought to understand the mind's structure and functions, and identify some of the leading psychologists who worked in these areas. Psychology as we know it today was born in a laboratory in Germany in the late 1800s, when Wilhelm Wundt ran the first true experiments in psychology's first lab. Soon, the new discipline formed branches. Edward Bradford Titchener and other structuralists searched for the basic elements of the mind by training people to look inward and describe the smallest units of their experiences. In an attempt to understand how mental and behavioral processes help us to adapt, survive, and flourish, William James and other functionalists tried to explain why we do what we do. James also wrote a popular text for the new discipline. Lf. l OBJECTIVE Describe the evolution of psychology as defined from the 1920s through today. Until the 1920s, psychology was a "science of mental life" studied through introspection. Then American behaviorists, led by John B. Watson and later by B. F. Skinner, changed psychology's focus to the study of observable behavior. In the 1960s, humanistic psychologists drew attention to the importance of environmental influences, personal growth, and the needs for love and acceptance. Also in the 1960s, the cognitive revolution began to refocus psychology's interest in mental processes, with special attention to perception, information processing, and memory. Cognitive neuroscientists are broadening our understanding of these and other processes in today' s psychology, which views itself as a "science of behavior and mental processes." ASK YOURSELF: How do you think psychology might change as more people from non-Western countries contribute their ideas to the field?* *The Ask Yourself questions will help you reflect on the key issues and connect them to your own life. Making these issues personally meaningful will make them memorable. Contemporary Psychology • nature-nurture issue the longstanding controversy over the relative contributions that genes and experience make to the development of psychological traits and behaviors. natural selection the principle that, among the range of inherited trait variations, those contributing to reproduction and survival will most likely be passed on to succeeding generations. Like its pioneers, today' s psychologists are citizens of many lands. The International Union of Psychological Science has 69 member nations, from Albania to Zimbabwe. Nearly everywhere, membership in psychological societies is mushrooming-from 4183 American Psychological Association members and affiliates in 1945 to more than 160,000 today, with similarly rapid growth in Britain (from 1100 to 34,000). In China, five universities had psychology departments in 1985; by the century's end, there were 50 (Jing, 1999). Worldwide, some 500,000 people have been trained as psychologists, and 130,000 of them belong to European psychological organizations (Tikkanen, 2001). Moreover, thanks to international publications, joint meetings, and the Internet, collaboration and communication cross borders more now than ever: "We are moving rapidly towards a single world of psychological science," reports Robert Bjork (2000). Psychology is growing and it is globalizing. Today's psychologists debate some enduring issues and view behavior from differing perspectives. They also teach, work, and do research in many different subfields. "' • ~ ~ I ~ , PROLOGUE: THE STORY OF PSYCHOLOGY 9 .Psychology's Big Debate OBJECTIVE 5 I Summarize the nature-nurture debate in psychology, and describe the principle of natural selection. During its short history, psychology has wrestled with some issues that will reappear throughout this book. The biggest and most persistent issue (and the focus of Chapter 3) concerns the relative contributions of biology and experience. As we have seen, the origins of this nature-nurture debate are ancient. Do our human traits develop through experience, or do we come equipped with them? The ancient Greeks debated this, with Plato assuming that character and intelligence are largely inherited and that certain ideas are also inborn, and Aristotle countering that there is nothing in the mind that does not first come in from the external world through the senses. In the 1600s, philosophers rekindled the debate. Locke rejected the notion of inborn ideas, offering his notion that the mind is a blank sheet on which experience writes. Descartes disagreed, believing that some ideas are innate. Two centuries later, Descartes' views gained support from a curious naturalist. In 1831, an indifferent student but ardent collector of beetles, mollusks, and shells set sail on what was to prove a historic round-the-world journey. The 22year-old voyager was Charles Darwin, and for some time afterward, he pondered the incredible species variation he had encountered, including tortoises on one island that differed from those on other islands of the region. Darwin's 1859 Origin of Species explained this diversity of life by proposing an evolutionary process. From among chance variations in organisms, he believed, nature selects those that best enable an organism to survive and reproduce in a particular environment. Darwin's principle of natural selection- "the single best idea anyone has ever had," says philosopher Daniel Dennett (1996)-is still with us nearly 150 years later as an organizing principle of biology. Evolution also has become an important principle for twenty-first century psychology. This would surely have pleased Darwin, for he believed his theory explained not only animal structures (such as why polar bear coats are white) but also animal behaviors (such as the emotional expressions associated with lust and rage). The nature-nurture debate weaves a thread from the distant past to our time . Today's psychologists have continued the debate by asking: Charles Darwin Argued that natural selection shapes behaviors as well as bodies. · • How are differences in intelligence, personality, and psychological disorders influenced by heredity and by environment? • Is children's grammar mostly innate or formed by experience? A nature-made nature-nurture experiment . .~~ ·-: .1 ~ i~ 0 . . .. . . · . . ;;.:.,..> l --. ·. \' ' 3: ~ Because identical twins have the same genes, they are ideal participants in studies designed to shed light on hereditary and environmental influences on temperament, intelligence, and other traits. Studies of identical and fraternal twins provide a rich array of findings-described in later chapters-that underscore the importance of both nature and nurture. 10 PROLOGUE: THE STORY OF PSYCHOLOGY levels of analysis the differing complementary views, from biological to psychological to social-cultural, for analyzing any given phenomenon. biopsychosocial approach an integrated perspective that incorporates biological, psychological, and social-culturallevels of analysis. • Are sexual behaviors more "pushed" by inner biology or "pulled" by external incentives? • Should we treat depression as a disorder of the brain or a disorder of thoughtor both? • How are we humans alike (because of our common biology and evolutionary history) and different (because of our differing environments)? • Are gender differences biologically predisposed or socially constructed? The debate continues. Yet over and over again we will see that in contemporary science the nature-nurture tension dissolves: Nurture works on what nature endows. Our species is biologically endowed with an enormous capacity to learn and adapt. Moreover, every psychological event (every thought, every emotion) is simultaneously a biological event. Thus depression can be both a thought disorder and a brain disorder. Psychology's Three Main levels of Analysis 6 OBJECTIVE !Identify the three main levels of analysis in the biopsychosocial approach, and explain why psychology's varied perspectives are complementary. Each of us is a complex system that is part of a larger social system, but each of us is also composed of smaller systems, such as our nervous system and body organs, which are composed of still smaller systems-cells, molecules, and atoms. These different systems suggest different levels of analysis, which offer complementary outlooks. It's like explaining why grizzly bears hibernate. Is it because hibernation enhanced their ancestors' survival and reproduction? Because their inner physiology drives them to do so? Because cold environments hinder food gathering during winter? Such perspectives are complementary, because "everything is related to everything else" (Brewer, 1996). Together, different levels of analysis form an integrated biopsychosocial approach, which considers the influences of biological, psychological, and social-cultural factors (FIGURE 1). Each level provides a valuable vantage point for looking at behavior, yet each by itself is incomplete. Biological influences: • genetic predispositions • genetic mutations • natural selection of adaptive physiology and behaviors • genes responding to the environment L..... Psychological influences: • learned fears and other learned expectations • emotional responses • cognitive processing and perceptual interpretations Behavior or mental process FIGURE 1 Blopsychosocial approach This integrated viewpoint incorporates various levels of analysis and offers a more complete picture of any given behavior or mental process. Social-cultural influences: • presence of others • cultural, societal, and family expectations • peer and other group influences • compelling models (such as the media) PROLOGUE : THE STORY OF PSYCHOLOGY TABLE 11 1 PSYCHOLOGY'S CURRENT PERSPECTIVES Perspective Focus Sample Questions Neuroscience How the body and brain enable emotions, memories, and sensory experiences How are messages transmitted within the body? How is blood chemistry linked with moods and motives? Evolutionary How the natural selection of traits promotes the perpetuation of one's genes How does evolution influence behavior tendencies? Behavior genetics How much our genes and our environment influence our individual differences To what extent are psychological traits such as intelligence, personality, sexual orientation, and vulnerability to depression attributable to our genes? To our environment? Psychodynamic How behavior springs from unconscious drives and conflicts How can someone's personality traits and disorders be explained in terms of sexual and aggressive drives or as the disguised effects of unfulfilled wishes and childhood traumas? Behavioral How we learn observable responses How do we learn to fear particular objects or situations? What is the most effective way to alter our behavior, say, to lose weight or stop smoking? Cognitive How we encode, process, store, and retrieve information How do we use information in remembering? Reasoning? Solving problems? Social-cultural How behavior and thinking vary across situations and cultures How are we-as Africans, Asians, Australians, or North Americans-alike as members of one human family? As products of different environmental contexts, how do we differ? Consider, for example, how psychology's varied perspectives described in can supplement one another and shed light on anger. • ~ • TABLE 1, • Someone working from the evolutionary perspective might analyze how anger facilitated the survival of our ancestors' genes. • Someone working from the behavior genetics perspective might study how heredity and experience influence our individual differences in temperament . • Someone working from the neuroscience perspective might study the brain circuits that produce the physical state of being "red in the face" and "hot under the collar." • Someone working from the psychodynamic perspective might view an outburst as an outlet for unconscious hostility. • Someone working from the behavioral perspective might study the facial expressions and body gestures that accompany anger, or might attempt to determine which external stimuli result in angry responses or aggressive acts. Views of anger .... ... .... How would each of psychology's levels of analysis explain what's going on here? 12 PROLOGUE : THE STORY OF PSYCHOLOGY Want to learn more? See Appendix A, Careers in Psychology, at the end of this book for more information about psychology's subfields and to learn about the many interesting options available to those with bachelor's, master's, and doctoral degrees In psychology. • Someone working on the cognitive perspective might study how our interpretation of a situation affects our anger and how our anger affects our thinking. • Someone working on the social-cultural perspective might explore which situations produce the most anger, and how expressions of anger vary across cultural contexts. This important point-that different perspectives can complement one another-is also true of the different academic disciplines. Each academic perspective has its questions and its limits. A perfume manufacturer needs chemistry to create its products, psychology to know what will sell, and marketing and business to turn a profit. Differing academic perspectives are like different two-dimensional views of a threedimensional object. Each two-dimensional perspective is helpful, but by itself fails to reveal the whole picture. So bear in mind psychology's limits. Don't expect it to answer the ultimate questions, such as those posed by Russian novelist Leo Tolstoy ( 1904): "Why should I live? Why should I do anything? Is there in life any purpose which the inevitable death that awaits me does not undo and destroy?" Instead, expect that psychology will help you understand why people think, feel, and act as they do. Then you should find the study of psychology fascinating and useful. Psychology's Subfields OBJECTIVE 7 11dentify some of psychology's subfields, and explain the difference between clinical psychology and psychiatry. Psychology is a collection of diverse subfields. Some psychologists do basic research, some do applied research, and some provide professional services. Picturing a chemist at work, you probably envision a white-coated scientist surrounded by glassware and high-tech equipment. Picture a psychologist at work and you would be right to envision -i . ~ ____j '. ( f ~-d f~ ~~ ~~ ~~ :~ ~~ ~~ ~~ "I'm a social scientist, Michael. That means I can't explain electricity or anything like that, but if you ever want to know about people I'm your man." • a white-coated scientist probing a rat's brain. • an intelligence researcher measuring how quickly an infant becomes bored with (looks away from) a familiar picture. • an executive evaluating a new "healthy life-styles" training program for employees. • someone at a computer keyboard analyzing data on whether adopted teens' temperaments more closely resemble those of their adoptive parents or those of their biological parents. • a therapist listening carefully to a client's depressed thoughts. • a traveler en route to another culture to collect data on variations in human values and behaviors. • a teacher or writer sharing the joy of psychology with others. The cluster of subfields we call psychology has less unity than most other sciences. But there is a payoff: Psychology is a meeting ground for different disciplines and is thus a perfect home for those with wide-ranging interests. In their diverse activities, from biological experimentation to cultural comparisons, a common quest unites the tribe of psychology: to describe and explain behavior and the mind underlying it. Some psychologists conduct basic research that builds psychology's knowledge base. In the pages that follow we will meet a wide variety of such researchers: • Biological psychologists exploring the links between brain and mind • Developmental psychologists studying our changing abilities from womb to tomb • Cognitive psychologists experimenting with how we perceive, think, and solve problems • Personality psychologists investigating our persistent traits • Social psychologists exploring how we view and affect one another ~ [ r PROLOGUE: THE STORY OF PSYCHOLOGY These psychologists also may conduct applied research that tackles practical problems. So do other psychologists, such as industrial!organizational psychologists as they study and advise on behavior in the workplace. They use psychology's concepts and methods to help organizations and companies select and train employees more effectively, to boost morale and productivity, to design products, and to implement systems. Although most psychology textbooks focus on psychological science, psychology is also a helping profession devoted to such practical issues as how to have a happy marriage, how to overcome anxiety or depression, and how to raise thriving children. Counseling psychologists help people cope with challenges (including academic, vocational, and marital issues) by recognizing their strengths and resources. Clinical psychologists assess and treat mental, emotional, and behavior disorders (APA, 2003). Both counseling and clinical psychologists administer and interpret tests, provide counseling and therapy, and sometimes conduct basic and applied research. By contrast, psychiatrists, who also often provide psychotherapy, are medical doctors licensed to prescribe drugs and otherwise treat physical causes of psychological disorders. (Some clinical psychologists are lobbying for a similar right to prescribe mental health-related drugs, and in 2002 the state of New Mexico granted that right to specially trained and licensed psychologists.) With perspectives ranging from the biological to the social, and with settings from the laboratory to the clinic, psychology relates to many disciplines. More and more, psychology connects with fields ranging from mathematics to biology to sociology to philosophy. And more and more, psychology's methods and findings aid other disciplines. Psychologists teach in medical schools, law schools, and theological seminaries, and they work in hospitals, factories, and corporate offices. They engage in interdisciplinary studies, such as psychohistory (the psychological analysis of historical characters), psycholinguistics (the study of language and thinking), and psychoceramics (the study of crackpots) .1 ~ ~ 1 Confession time: I wrote the last part of this sentence on April Fools' Day. 13 Psychology: A science and a profession Psychologists experiment with, observe, test, and treat behavior. Here we see psychologists testing a child, recording children's behavior, and doing faceto-face therapy. • basic research pure science that aims to increase the scientific knowledge base. • applied research scientific study that aims to solve practical problems. • counseling psychology a branch of psychology that assists people with problems in living (often related to school, work, or marriage) and in achieving greater wellbeing. • clinical psychology a branch of psychology that studies, assesses, and treats people with psychological disorders. • psychiatry a branch of medicine dealing with psychological disorders; practiced by physicians who sometimes provide medical (for example, drug) treatments as well as psychological therapy. 14 PROLOGUE: THE STORY OF PSYCHOLOGY I see you! A biological psychologist might view this child's delighted response as evidence for brain maturation. A cognitive psychologist might see it as a demonstration of the baby's growing knowledge of his surroundings. For a cross-cultural psychologist, the role of grandparents in different societies might be the issue of interest. As you will see throughout this book, these and other perspectives offer complementary views of behavior. Once expanded to the dimensions of a larger idea, [the mind] never returns to its original size." Oliver Wendell Holmes, 1809-1894 Psychology also influences modern culture. Knowledge transforms us. Learning about the solar system and the germ theory of disease alters the way people think and act. Learning psychology's findings also changes people: They less often judge psychological disorders as a moral failing, treatable by punishment and ostracism. They less often regard and treat women as men's mental inferiors. They less often view and rear children as ignorant, willful beasts in need of taming. "In each case," notes Morton Hunt (1990, p. 206), "knowledge has modified attitudes, and, through them, behavior." Once aware of psychology's well-researched ideas-about how body and mind connect, how a child's mind grows, how we construct our perceptions, how we remember (and misremember) our experiences, how people across the world differ (and are alike)-your mind may never again be quite the same. ) ) LEAR.N~NG OUTCOMES Contemporary Psychology Psychology is growing and globalizing, as psychologists in 69 countries around the world work, teach, and do research in many subfields. 51 OBJECTIVE Summarize the nature-nurture debate in psychology, and describe the principle of natural selection. Psychology's biggest and most enduring issue concerns the balance between the influences of nature (genes) and nurture (all other influences, from conception to death). Philosophers had long debated whether nature (the view of Plato and Descartes) or nurture (the view of Aristotle and Locke) was more important. Charles Darwin proposed a mechanism-the principle of natural selection-by which nature selects chance variations that enable organisms to survive and reproduce in particular environments. Psychologists now believe that in most cases, every psychological event is simultaneously a biological event. A great deal of research, including studies of identical and fraternal twins, sheds light on the relative importance of these two sets of influences on such traits as personality and intelligence. 6 OBJECTIVE !Identify the three main levels of analysis in the biopsychosocial approach, and explain why psychology's varied perspectives are complementary. The biopsychosocial approach integrates information from the biological, psychological, and social-cultural levels of analysis. Psychologists study human behaviors and mental processes from many different perspectives (including the neuroscientific, evolutionary, behavior genetics, psychodynamic, behavioral, cognitive, and social-cultural perspectives). Melding the information gathered from these many lines of research creates a more complete understanding of behaviors and mental processes than would be available from any one viewpoint alone. J J OBJECTIVE / !Identify some of psychology's subfields, and explain the difference between clinical psychology and psychiatry. Psychology's subfields encompass basic research (often done by biological, developmental, cognitive, personality, and social psychologists), applied research (sometimes conducted by industrial/organizational psychologists), and clinical applications (the work of counseling and clinical psychologists). Clinical psychologists study, assess, and treat (with psychotherapy) people with psychological disorders; psychiatrists also study, assess, and treat people with disorders, but they are medical doctors who can prescribe medication as well as offer psychotherapy. ASK YOURSELF: When you signed up for this course, what did you think psychology would be all about? 1 ~ PROLOGUE: THE STORY OF PSYCHOLOGY •• YOUR STUDY OF PSYCHOLOGY = I State five effective study techniques. OBJECTIVE .. r ,.. I r r t r ,. ... The investment you are making in studying psychology should enrich your life and enlarge your vision. Although many of life's significant questions are beyond psychology, g:, some very important ones ~ are illuminated by even a ~~ first psychology course. ~ ~ Through painstaking re- .~ 0 search, psychologists have gained insights into brain and mind, depression and joy, dreams and memories. Even the unanswered questions can enrich us, by renewing our sense of mystery about "things too wonderful" for us yet to understand. What is more, your study of psychology can help teach you how to ask and answer important questions-how to think critically as you evaluate competing ideas and claims. Having your life enriched and your vision enlarged (and getting a decent grade) requires effective study. As you will see in Chapter 9, to master information you must actively process it. Your mind is not like your stomach, something to be filled passively; it is more like a muscle that grows stronger with exercise. Countless experiments reveal that people learn and remember material best when they put it in their own words, rehearse it, and then review and rehearse it again. A simple study method incorporates these principles. You can remember it as SQ3R: Survey, Question, Read, Review, and Reflect. First, survey what you're about to read, including chapter outlines and section heads. Note a section's main topic, as indicated by the learning objective at the beginning. This will focus your reading and study. Learning how to ask and answer important questions The basic study tips in this box are beneficial to students at all levels and in all places, including these children at a village school in Niger. Keep the learning objective in mind as a question you will attempt to answer as you read the section. Usually a single main chapter section will be as much as you can absorb without tiring. Treat each main chapter section as if it were a whole chapter. Read actively and critically. Ask questions. Make notes. Consider implications: How does what you've read support or challenge your assumptions? How convincing is the evidence? How does it relate to your own life? Finally, review and reflect. To root a section's organization more deeply in your memory, rescan the section and the marginal definitions of key terms. Study the Learning Outcomes at the end of each section. Quiz yourself with t he Test Yourself questions at the end of each chapter and, perhaps, by taking quizzes in the book's accompanying study guide and online learning resources (see page 17). Glance over your notes or highlighting. Then stop and let it all sink in. Better yet, summarize the material for a friend or lecture about it to an imaginary audience. Survey, question, read, review, reflect. I have organized the chapters to facilitate your using the SQ 3 R study method. Each chapter begins with an outline that helps you survey what is upcoming, and each main section begins with a learning objective. I have divided chapters into three to five main sections of readable length. To assist your reviewing, each main section ends with a Learning Outcomes narrative summary. End-of-section Ask Yourself questions are designed to help you reflect-applying what you've learned to your own life to make the material more meaningful and memorable. The chapter ends with big-picture Test Yourself review questions and an organized reminder of key terms. Survey, question, read, review, reflect . Five additional study hints may further boost your learning: Distribute your study time. One of psychology's oldest findings is that spaced practice promotes better retention than massed practice. You'll remember material better if you space your time over several study periods-perhaps one hour a day, six days a week-rather than cram it into one long study blitz. Spacing your study sessions requires a disciplined approach to managing your time. (Richard 0. Straub explains time management in the helpful Study Guide that accompanies this text.) For example, rather than trying to read a whole chapter in a single sitting, read just one of the chapter's main sections and then turn to something else. 15 J '-- 16 PROLOGUE: THE STORY OF PSYCHOLOGY In class, listen actively. As psychologist William James urged some 100 years ago, NO reception without 11 reaction, no impression without ... expression." Listen for the main idea and subideas in lectures. Write them down. Ask questions during and after class. In class, as in your private study, process the information actively and you will understand and retain it better. Overlearn. Psychology tells us that "overlearning improves retention." The more often students read a chapter and the fewer classes they miss, the better their exam scores are (Woehr & Cavell, 1993). Students frequently stop short of overlearning and overestimate how much they know. Really learning something requires more than momentarily understanding it. You may understand a chapter as you read it, but if you devote extra study time to rereading, to testing yourself, and to reviewing what you think you know, you will actually learn the material and retain your new knowledge longer. Focus on the big ideas. It helps to step back periodically and see the big picture so that you know how all the facts and research fit together. To understand and appreciate psychology's lessons, for example, it's important to read about the research that informs them, but it is also important to watch for the bigger concepts and themes that psychologists construct from these smaller findings. Among this book's big ideas are these: • Critical thinking and scientific scrutiny help us think smarter about many things. • We gain understanding by viewing a phenomenon from the biological, psychological, and social-cultural levels. Everything psychological is simultaneously biological. Yet our behavior is often influenced by our environment and our culture. • Nature (our genes and our biological makeup) and nurture (our environment, our culture, and the world around us) work together in forming our traits and behaviors. • We are creatures of our culture and gender, yet we are far more alike than different. • Much of our human information processing is unconscious, below the radar screen of our awareness. Be a smart test-taker. If a test contains both multiple-choice questions and an essay question, turn first to the essay. Read the question carefully, noting exactly what the instructor is asking. On the back of a page, pencil in a list of points you'd like to make, and then organize them. Before writing, put the essay aside and work through the multiple-choice questions. (As you do so, you may continue to mull over the essay question. Sometimes the objective questions will bring pertinent thoughts to mind.) Then reread the essay question, rethink your answer, and start writing. When you finish, proofread your work to eliminate spelling and grammatical errors that make you look less competent than you are. When reading multiple-choice questions, don't confuse yourself by trying to imagine how each choice might be the right one. Try instead to answer the question as if it were a fill-in-the-blank. First, cover the answers, recall what you know, and complete the sentence in your mind. Then read the answers on the test and find the alternative that best matches your own answer. As you read psychology, you will learn much more than effective study techniques. Psychology teaches us how to ask important questionshow to think critically as we evaluate competing ideas and popular claims. It deepens our appreciation for how we humans perceive, think, feel, and act. By so doing, it informs our living and enlarges our compassion. Through this book I hope to help guide you toward that end. As educator Charles Eliot said a century ago, "Books are the quietest and most constant of friends, and the most patient of teachers." )) LEARNING OUTCOMES J • I State five effective study ~ (1) Distribute study time. (2) Listen actively in class. ( 3) Overlearn. ( 4) Focus on big ideas. ( 5) Be a smart test-taker. ~ OBJECTIVE techniques. 1 1 , 1 ~ PROLOGUE: THE STORY OF PSYCHOLOGY REVIEW: The Story of Psychology Test Yourself 1. What events defined the founding of scientific psychology? 2. What are psychology's major levels of analysis? The Test Yourself questions offer you a handy self-test on the material you have just read. Answers to these questions can be found in Appendix B at the back of the book. Terms and Concepts to Remember psychology, p. 2 empiricism, p. 3 structuralism, p. 4 functionalism, p. 5 humanistic psychology, p. 7 WEB ) ~ r ~ t ~ I To continue your study and review of The Story of Psychology, visit this book's Web site at www.worthpublishers.com/myers. You will find practice tests, review activi ties, and many interesting articles and Web links for more information on topics related to The Story of Psychology. nature-nurture issue, p. 9 natural selection, p. 9 levels of analysis, p. 10 biopsychosocial approach, p. 10 basic research, p. 12 applied research, p. 13 counseling psychology, p. 13 clinical psychology, p. 13 psychiatry, p. 13 17