Myers’ Psychology for AP* David G. Myers Some PowerPoint Presentation Slides by Kent Korek Germantown High School Worth Publishers, © 2010 *AP is a trademark registered and/or owned by the College Board, which was not involved in the production of, and does not endorse, this product. OBJECTIVES: The student will know and understand the Thinking and Language examines the role of language, problem-solving skills, creativity, multilingualism, and intelligence testing as primary interests of researchers in this area. After completing their study of this chapter, students should be able to: 1)describe the nature of concepts and the role of prototypes in concept formation, 2) discuss how we use trial and error, algorithms, heuristics, and insight to solve problems, 3) describe how the confirmation bias and fixation can interfere with effective problem solving, 4) explain how the representatives and availability heuristics influence our judgments, 5) describe the effects that overconfidence and framing can have on our judgments and decisions, 6) discuss how our beliefs distort logical reasoning, and describe the belief perseverance phenomenon, 7) describe artificial intelligence, and contrast the human mind and the computer as information processors, 8) describe the structure of language in terms of sounds, meanings, and grammar, 9)trace the course of language acquisition from the babbling stage through the two-word stage, 10)explain how the nature-nurture debate is illustrated in the theories of language development, 11)discuss Whorf’s linguistic determinism hypothesis and the relationship between thought and language, 12)describe the research on animal cognition and communication and discuss the controversy over whether animals can use language. Thinking Cognition mental activity associated with processing, understanding, and communicating information Cognitive Psychology the study of these mental activities concept formation problem solving decision making judgement formation study of both logical and illogical thinking Thinking Thinking Concept mental grouping of similar objects, events, or people address • country, city, street, house • zip codes Prototype the best example of a category matching new items to the prototype provides a quick and easy method for including items in a category (as when comparing feathered creatures to a prototypical bird, such as a robin.) Once we place an items in a category, our memory of it tends to shift toward a category prototype. Notice the ethnicity of the people in the following slides and mentally determine the percentage of ethnicity in each person. (ie) is the person 30% black and 70% Asian? Shown a face that is 70% caucasian, people tended to classify the person as caucasian and to recollect the person as more caucasian than it was. Problem Solving Good problem solvers are skilled at (a) identifying the problem, and (b) selecting a strategy. Algorithm methodical, logical rule or procedure that guarantees solving a particular problem contrasts with the usually speedier – but also more error-prone use of heuristics Heuristic TWO strategy methods: rule-of-thumb strategy that often allows us to make judgements and solve problems efficiently usually speedier than algorithms more error-prone than algorithms sometimes we’re unaware of using heuristics Thinking Unscramble SPLOYOCHYG Algorithm all 907,208 combinations Heuristic throw out all YY combinations other heuristics? Heuristics Representativeness Heuristic rule of thumb for judging the likelihood of things in terms of how well they seem to represent, or match, particular prototypes may lead one to ignore other relevant information Availability Heuristic estimating the likelihood of events based on their availability in memory if instances come readily to mind (perhaps because of their vividness), we presume such events are common Example: airplane crash Making Decisions and Forming Judgments Using and Misusing Heuristics The Availability Heuristic Some Useful Heuristic Strategies: 1) Working backwards (works well with mazes and certain math problems where the initial conditions are vague) 2) Searching for analogies (works well if the problem is similar to one you have faced previously) 3) Breaking problem in to smaller pieces (allows the completion of smaller, manageable units) Solving Problems Creativity Creativity: the ability to produce novel and valuable ideas. Sternberg’s five components Expertise Imaginative thinking skills A venturesome personality Intrinsic motivation A creative environment Thinking Insight sudden and often novel realization of the solution to a problem contrasts with strategy-based solutions Confirmation Bias tendency to search for information that confirms one’s preconceptions Fixation inability to see a problem from a new perspective impediment to problem solving Thinking- Insight Wolfgang Kohler’s experiment on insight by a chimpanzee by solving complex problems. Kohler suspended fruit out of reach of the chimp. Sulton, the brightest chimp first attacked the fruit with sticks in trial and error fashion. He then sat down, scratched his head, and begin to pile boxes. He then climbed on top of them with a stick to knock down his prize. PROBLEMS Using these materials, how would you mount the candle on a bulletin board? How would you arrange six matches to form four equilateral triangles? Problem Solutions Solution to the matchstick problem Solving this problem requires recognizing that a box need not always serve as a container The Three-Jugs Problem Using jugs A, B, and C with the capacities shown, how would you measure out the volumes indicated? Solution: a) All seven problems can be solved by the equation shown in (a): B-A-2C= desired volume. b) But simpler solutions exist for problems 6 and 7, such as A-C for problem 6. The Three-Jugs Problem Obstacles to Problem Solving Mental Set tendency to approach a problem in a particular way especially a way that has been successful in the past but may or may not be helpful in solving a new problem Functional Fixedness tendency to think of things only in terms of their usual functions impediment to problem solving Self Imposed Limitations Low self-esteem Lack of Knowledge Fatigue Lack of Interest Drugs Thinking Overconfidence tendency to be more confident than correct tendency to overestimate the accuracy of one’s beliefs and judgements Framing the way an issue is posed how an issue is framed can significantly affect decisions and judgements Example: What is the best way to market ground beef- As 25% fat or 75% lean? Thinking Belief Bias the tendency for one’s preexisting beliefs to distort logical reasoning sometimes by making invalid conclusions seem valid, or valid conclusions seem invalid Belief Perseverance clinging to one’s initial conceptions after the basis on which they were formed has been discredited Consider the opposite?? Artificial Intelligence Artificial Intelligence designing and programming computer systems to do intelligent things to simulate human thought processes • intuitive reasoning • learning • understanding language Computer Neural Networks computer circuits that mimic the brain’s interconnected neural cells performing tasks learning to recognize visual patterns learning to recognize smells Making Decisions and Forming Judgments The Perils and Powers of Intuition Intuition: an effortless, immediate, automatic feeling or thought, as contrasted with explicit, conscious reasoning. Unconscious intuition QUESTIONS FOR REVIEW Jessie’s older brother has had chronic depression for several years. Jessie has been incorrectly informed by her parents that there is a 40 percent chance she will also suffer from depression. Explain how the following might lead to Jessie having depression: AVAILIABILITY HEURISTIC: memories of watching her brother suffer, so she believes she will suffer…. If parents had said 60 percent chance of NOT suffering FRAMING: from depression instead of 40 percent chance that she will….. CONFIRMATION BIAS: Tendency to search for information that confirms one’s belief… BELIEF PERSERVERANCE: Clinging to one’s initial conceptions even after the basis for the misinformation is pointed out…. Show DISCOVERING PSYCHOLOGY #10 Cognitive Processes #11 Judgment and Decision Making BACK Language Language Language our spoken, written, or gestured works and the way we combine them to communicate meaning Phoneme in a spoken language, the smallest distinctive sound unit (in English, about 40 phonemes) Language Morpheme in a language, the smallest unit that carries meaning may be a word or a part of a word (such as a prefix) Grammar a system of rules in a language that enables us to communicate with and understand others Language Semantics the set of rules by which we derive meaning from morphemes, words, and sentences in a given language also, the study of meaning Syntax the rules for combining words into grammatically sensible sentences in a given language HOW DO CHILDREN ACQUIRE LANGUAGE? LANGUAGE INNATENESS THEORY OF LANGUAGE *children acquire language not merely by imitating but also by inborn program of steps to acquire vocabulary and grammar in their environment. Noam CHOMSKY, psycholinguist *children born with mental structure, allows vocabulary & grammar of their environment *LAD: Language Acquisition device HUMAN GENOME PROJECT *language is genetic *Broca’s area (ch.2) Professor emeritus, linguistics, MIT The CHOMSKY HIERARCHY Not necessary to copy Language Class 3 2 1 0 Grammar Automaton Regular NFA or DFA Context-Free Push-Down Automaton Context-Sensitive Linear-Bounded Automaton Unrestricted (or Free) Turing Machine Type 0:Unrestricted rewriting systems. The languages defined by Type 0 grammars are accepted by Turing machines; Chomskyan transformations are defined as Type 0 grammars. Type 1:Context-sensitive grammars. The languages defined by Type 1 grammars are accepted by linear bounded automata; the syntax of some natural languages (including Dutch, Swiss German and Bambara), but not all, is generally held in computational linguistics to have structures of this type. Type 2:Context-free grammars. The languages defined by Type 2 grammars are accepted by push-down automata; the syntax of natural languages is definable almost entirely in terms of context-free languages and the tree structures Type 3:Regular grammars. The languages defined by Type 3 grammars are accepted by finite state automata; morphological structure and perhaps all the syntax of informal spoken dialogue is describable by regular grammars. There are two kinds of regular grammar. Language Development Explaining Language Development Chomsky: Inborn Universal Grammar Language acquisition device Universal grammar Language Development Explaining Language Development Skinner: Operant Learning Learning principles Association Imitation Reinforcement Language 1) Crying….. 2) Babbling Stage *beginning at 3 to 4 months *the stage of speech development in which the infant spontaneously utters various sounds at first unrelated to the household language also called “naming 3) One-Word Stage (“mama”) stage” *from about age 1 to 2 *the stage in speech development during which a child speaks mostly in single words 4) Two-Word Stage (“mommy milk”) *beginning about age 2 *the stage in speech development during which a child speaks mostly twoword statements *start to acquire grammar 5) Telegraphic Speech (“ball hit mary cry”) *early speech stage in which the child speaks like a telegram – “go car” – using mostly nouns and verbs and omitting “auxiliary” words *acquire rules of grammar Starting at age 2, children also: *acquire use of MORPHEMES, showing tense (walks, walked, walking) *overgeneralization or overregularization: (ie. hitted, breaked) *use words with abstract meanings (dream, forget, pretend, believe) *use words that refer to emotions (happy, sad, angry) After cognitive advances in later childhood, they understand highly abstract words (truth, justice, idea) Language Summary of Language Development Month (approximate) Stage 4 Babbles many speech sounds. 10 Babbling reveals households language. 12 One-word stage. 24 Two-word, telegraphic speech. 24+ Language develops rapidly into Complete sentences. Motherease (parentease): the way a mother talks to infants…..includes slower pace, enunciate clearly, simple words, reemphasis on common words, higher tone, common pitch…. Universal Adaptability; during the babbling stage, the ability of an infant to make all possible sounds in language. This ability is lost by the age of 1. Language Development Explaining Language Development Statistical Learning and Critical Periods Statistical learning Critical (sensitive) period Language Genes design the mechanisms for a language, and experience fills them as it modifies the brain Language Environment spoken language heard provides input to Genes Brain design Mechanisms for understanding and producing language Behavior Mastery of native language Language We are all born to recognize speech sounds from all the world’s languages Percentage able to discriminate Hindi t’s 100 90 80 70 60 50 40 30 20 10 0 Hindispeaking adults 6-8 months 8-10 months 10-12 months Infants from English-speaking homes Englishspeaking adults 7bThe mind 23 infant speech sound discrimination.avi.mp4 7bThe mind 24 language predisposition.avi.mp4 7bThe mind 26 the bilingual brain.avi.mp4 Language Percentage correct on grammar test New language learning gets harder with age 100 90 80 70 60 50 Native 3-7 8-10 11-15 17-39 Age at school Language Influences Thinking Whorf’s linguistic determinism: **hypothesis that language determines the way we think Bilingual advantage Thinking in Images Implicit memory Animal Thinking and Language Is this really language? QUESTIONS FOR REVIEW RECALL 1) Noam Chomsky has presented evidence supporting his theory that a) Children learn language by imitating their parents. b) Children are born with some rules of grammar programmed into their brains c) Vocabulary is innate, but grammar is learned. d) Different languages may have entirely different rules of grammar e) Grammar interferes with a child’s ability to learn languages. RECALL 2) A child’s acquisition of grammar first becomes apparent at a) The babbling stage b) The one-word stage c) The two-word stage d) The concrete operational stage e) adolescence. RECALL 3) What is the first step in problem solving? a) selecting a strategy b) avoiding pitfalls c) searching for analogies d) identifying the problem e) developing algorithms APPLICATION 4) A math problem calls for finding the area of a triangle. You know the formula, so you multiply 1/2 the base times the height. You have used a) an algorithm b) a heuristic c) functional fixedness d) intuition e) an analogy RECALL 5) Good problem solvers often use “tricks of the trade” or “rules of thumb” known as a) algorithms b) heuristics c) trial and error d) deductive reasoning e) scripts APPLICATION 6) Which one of the following would be an example of confirmation bias at work? a) Mary ignores negative information about her favorite political candidate b) Aaron agrees with Joel’s taste in music. c) Natasha refuses to eat a food she dislikes d) Bill buys a new RV, even though his wife was opposed to the purchase. e) Frank buys a lottery ticket because he read about a lotto winner. RECALL 7) Which of the following is NOT a characteristic that is consistently found among highly creative people? a) independence b) a high level of motivation c) willingness to restructure the problem d) extremely high intelligence. e) open-mindedness. UNDERSTANDING THE CORE CONCEPT 8) Heuristic strategies show that our thinking is often based on a) logic rather than emotion b) experience rather than logic c) trial and error rather than algorithms d) common sense rather than learning. e) logic rather than creativity. APPLICATION 9) Which of the following utterances illustrates overregularization in language development? a) “bababababa” b) “Drink milk, all gone” c) “house” d) “Me gots two foots and two handses.” e) “Want cookie” APPLICATION 10) An alien being from another galaxy has landed on Earth and is overwhelmed by the sensory input it must process. Eventually the alien simplifies its thinking by categorizing sets of experiences and objects according to common features. In other words, the alien learns to form a) algorithms b) concepts c) heuristics d) hypotheses e) scripts APPLICATION 11) Because you watch a lot of violent videos, you think your chances of being mugged are quite high. Your judgment is flawed by a) anchoring bias b) functional fixedness c) hindsight bias d) availability bias e) stereotyping APPLICATION 12) A mental ____ outlines the proper sequence in which actions and reactions might be expected to happen in a given setting, such as when you visit a grocery store. a) algorithm b) heuristic c) map d) prototype e) script Show THE MIND #25 Human Language: Signed and Spoken #26 The Bilingual Brain #27 Animal Language #28 Language and Culture And FERAL CHILDREN (DIS) DISCOVERING PSYCHOLOGY #6 Language Development