ABNORMAL PSYCHOLOGY SIXTEENTH EDITION James N. Butcher/ Jill M. Hooley/ Susan Mineka Chapter 5 Stress and Physical and Mental Health © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. What Is Stress? Stress • External demands placed on an organism • Organism’s internal biological and psychological responses to such demands © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Stress and the DSM Stress and DSM • Significant component of multiple DSM diagnostic categories • DSM-5: Trauma- and stressor-related disorders © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Factors Creating Predisposition to Stress © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Characteristics of Stressors Severity Chronicity Key characteristics of stress involve: Timing Degree of impact Level of expectation Controllability © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Characteristics of Stressors Life changes Crises © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Perception of benefits Stress and the Stress Response Two of body’s systems respond when stressor is perceived • Sympathetic-adrenomedullary (SAM) system • Hypothalamic-pituitary adrenocortical (HPA) © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Figure 5.1: The Hypothalamic-PituitaryAdrenal (HPA) Axis © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Biological Costs of Stress Allostasis • Is process of adaptation or achieving stability through change • Results in wear and tear on body © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. The Mind-Body Connection Psychoneuroimmunology • Study of interaction between nervous system and immune system © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. The Mind-Body Connection True or False? Stress may cause overall vulnerability to disease. © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Understanding the Immune System Protects body from such things as viruses and bacteria Immune system Provides leukocytes: front lines of defense Communicates with brain via cytokines © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Figure 5.2: Immune System Responses to a Bacterial Infection © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Stress, Depression, and the Immune System Depression • Associated with compromised immune function beyond stressors that precipitated depression © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Stress and Physical Health Many psychological factors can affect relationship between stress and health • Optimism • Negative affect © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Cardiovascular Disease Study in this area includes: Hypertension Coronary heart disease © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Risk and causal factors Hypertension Hypertension involves persisting systolic and diastolic blood pressure Chronic hypertension and disease Hypertension and ethnicity © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Hypertension and anger management Figure 5.3: Defining Hypertension © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Coronary Heart Disease How would you define coronary heart disease? © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Certain personality patterns are linked Risk and Causal Factors in Cardiovascular Disease © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Type A Type D Treatment of Stress-Related Physical Disorders Biological interventions Psychological interventions © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Biological Interventions Surgical procedures Lipid-lowering medications Aspirin or other anticoagulants © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Antidepressant medications Psychological Interventions Biofeedback Relaxation and meditation Emotional disclosure © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Cognitivebehavior therapy Stress and Mental Health Some DSM disorders are triggered by exposure to stress © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Adjustment disorder Posttraumatic stress disorder Stress and Mental Health Adjustment Disorder • Maladaptive response to common stressor within 3 months of stressor • Symptoms disappear when stressor ends or person adapts © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Posttraumatic Stress Disorder Definition Causes Clinical description © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Prevalence of PTSD in General Population • Lifetime prevalence rate in the U.S. is 6.8% • Higher rates in women despite finding that men are more likely to be exposed to traumatic events What contributes to this gender difference? © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Rates of PTSD After Traumatic Experiences Military combat Prisoner of war, concentration camp, and torture experience Traumas caused by human intent Accidents or natural disasters © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Causal Factors in Posttraumatic Stress Disorder True or false? Not everyone exposed to a trauma will develop PTSD! © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Causal Factors in Posttraumatic Stress Disorder Individual risk factors Nature of trauma Sociocultural risk factors Causal factors may include: © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Individual Risk Factors How many can you name? © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Individual Risk Factors High cognitive ability (IQ) may lower risk of PTSD Biological differences may play a role in likelihood of developing PTSD © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Sociocultural Factors In combat-related trauma: • • • • Justification for combat Identification with combat unit Esprit de corps Quality of leadership © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Prevention and Treatment of Stress Disorders Psychological debriefing Prevention and treatment of stress disorders Challenges in studying crisis victims Trauma and physical health © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Prevention Advanced preparation of stressor • Military service • Medical procedures • Relationship termination © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Treatment for Stress Disorders Approaches to treatment include: • Telephone hotlines • Psychological first aid • Crisis intervention © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Psychological Debriefing Strategies for relief of PTSD symptoms • Critical Incident Stress Debriefing • Medications • Cognitive-behavioral treatments © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Challenges in Studying Crisis Victims Challenges Traumatic events cannot be predicted or controlled by researchers Variables of interest are difficult to assess © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Funding can be difficult to obtain Trauma and Physical Health Relatively new area for physical research Studies indicate that trauma is bad for body as well as mind © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved. Unresolved Issues The motivation for studying trauma stress The role of advocacy for trauma victims in trauma stress studies © 2014, 2013, 2010 by Pearson Education, Inc. All rights reserved.