chapter 12: psychological disorders
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Chapter 12: Psychological Disorders. Learning Outcomes. Define psychological disorders and describe their prevalence. Describe the symptoms and possible origins of anxiety disorders. Learning Outcomes. Describe the symptoms and possible origins of dissociative disorders. - PowerPoint PPT PresentationTRANSCRIPT
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Chapter 12: Psychological Disorders
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Learning Outcomes
• Define psychological disorders and describe their prevalence.
• Describe the symptoms and possible origins of anxiety disorders.
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Learning Outcomes
• Describe the symptoms and possible origins of dissociative disorders.
• Describe the symptoms and possible origins of somatoform disorders.
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Learning Outcomes
• Describe the symptoms and possible origins of mood disorders.
• Describe the symptoms and possible origins of schizophrenia.
• Describe the symptoms and possible origins of personality disorders.
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What are Psychological Disorders?
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Truth or Fiction?
• A man shot the President of the United States in front of millions of television witnesses and was found not guilty by a court of law.
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Truth or Fiction?
• A man shot the President of the United States in front of millions of television witnesses and was found not guilty by a court of law.
• TRUE!
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Psychological Disorders
• Characterized by– Rare or unusual behavior– Faulty perceptions or interpretations of reality– Severe personal distress– Self-defeating behaviors– Dangerous behaviors– Socially unacceptable behaviors
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Truth or Fiction?
• Anxiety is abnormal.
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Truth or Fiction?
• Anxiety is abnormal.
• FICTION!
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Perspectives on Psychological Disorders
• Demonological Model• Medical Model• Contemporary Psychological Models– Diathesis –stress model– Biopsychosocial model
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Classifying Psychological Disorders
• Diagnostic and Statistical Manual (DSM)– Includes information on medical conditions,
psychosocial problems and global assessment of functioning
– Concerns about reliability and validity of the standards• Predictive validity
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Prevalence of Psychological Disorders
• About 50% of us will experience a psychological disorder at some time– Most often starts in childhood or adolescence
• Slightly more than 25% will experience a psychological disorder in any given year
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Insanity Plea
• M’Naghten rule– Defendant did not understand what he was doing
at the time or did not realize it was wrong
• Raised in about 1% of cases
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Anxiety Disorders
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Anxiety Disorders
• Psychological features of anxiety– Worrying, fear of worst happening, fear of losing
control, nervousness, inability to relax
• Physical features of anxiety– Arousal of sympathetic branch of autonomic
nervous system
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Phobic Disorders
• Specific phobias– Irrational fears of specific objects or situations
• Social phobias– Persistent fears of scrutiny by others
• Agoraphobia– Fear of being in places from which it would be
difficult to escape or receive help
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Panic Disorder
• Abrupt attack of acute anxiety not triggered by a specific object or situation– Physical symptoms• Shortness of breath, heavy sweating, tremors,
pounding of the heart• Other symptoms that may “feel” like a heart attack
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Generalized Anxiety Disorder
• Persistent anxiety– Cannot be attributed to object, situation, or
activity
• Symptoms include– Motor tension– Autonomic overarousal– Excessive vigilance
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Obsessive-Compulsive Disorder
• Obsessions– Recurrent, anxiety-provoking thoughts or images
that seem irrational and beyond control
• Compulsions– Thoughts or behaviors that tend to reduce the
anxiety connected with obsessions– Irresistible urges to engage in specific acts, often
repeatedly
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Stress Disorders
• Posttraumatic stress disorder (PTSD)– Caused by a traumatic event– May occur months or years after event
• Acute stress disorder– Unlike PTSD, occurs within a month of event and
lasts 2 days to 4 weeks
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Sleep Problems Among Americans Before and After September 11, 2001
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Origins of Anxiety Disorders
• Psychological– Phobias as conditioned fears– Cognitive bias toward focusing on threats
• Biological– Genetic factors – Natural selection
• Biopsychosocial
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Dissociative Disorders
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Dissociative Disorders
• A splitting of mental processes such as thoughts, emotions, identity, memory, or consciousness
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Types of Dissociative Disorders
• Dissociative Amnesia– Suddenly unable to recall important personal
information; not due to biological problems
• Dissociative Fugue– Abruptly leaves home or work and travels to
another place, no memory of previous life
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Types of Dissociative Disorders
• Dissociative Identity Disorder– Two or more identities, each with distinct traits,
“occupy” the same person• Formerly known as multiple personality disorder
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Origins of Dissociative Disorders
• Learning/cognitive – may have learned to not think about or keep disturbing ideas out of one’s mind
• Culture-bound to U.S. and Canada
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Somatoform Disorders
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Somatoform Disorders
• Physical problems (such as paralysis, pain, or persistent belief of serious disease) with no evidence of a physical abnormality
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Conversion Disorder
• Major change in, or loss of, physical functioning, although there are no medical findings to explain the loss of functioning.– Not intentionally produced– la belle indifference
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Hypochondriasis
• Insistence of serious physical illness, even though no medical evidence of illness can be found
• May seek opinion of one doctor after another
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Origins of Somatoform Disorders
• Biopsychosocial perspective– Psychologically, the disorder has to do with what
one focuses on to the exclusion of conflicting information
– Susceptible to being hypnotized– Tendencies toward perfectionism and rumination
(heritable)
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Mood Disorders
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Mood Disorders
• Characterized by disturbance in expressed emotions
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Types of Mood Disorders
• Major Depressive Disorder– Persistent feelings of sadness, loss of interest,
feelings of worthlessness or guilt, and inability to concentrate
– About 50% of those with MDD experience severe symptoms• Poor appetite, weight loss, agitation, psychomotor
retardation
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Truth or Fiction?
• Feeling elated is not always a good thing.
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Truth or Fiction?
• Feeling elated is not always a good thing.
• TRUE!
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Types of Mood Disorders
• Bipolar disorder– Mood swings from ecstatic elation to deep
depression– Manic behaviors• Argumentative, rapid flight of ideas,
– Depressive behaviors• Lethargy, insomnia
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Origins of Mood Disorders
• Psychological– Learning theorists • Lack reinforcement and have an external locus of
control• Learned helplessness
– Cognitive • Perfectionism and unrealistic expectations• Attributional styles
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Origins of Mood Disorders
• Biological– Genetics – neuroticism– Neurotransmitter - serotonin
• Biopsychosocial– Biologically predisposed – Self-efficacy expectations – Attitudes
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Women and Depression
• Women are twice as likely to be diagnosed with depression– Begins to emerge in adolescence– During childbearing years – more likely to develop
depression
• Origins– Role of estrogen– Rumination– Demands placed on women
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Suicide
• Suicide is the third leading cause of death among 15- to 24-year-olds
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Risk Factors in Suicide
• Feelings of depression, hopelessness• Adolescent psychological problems• Stressful life events – exit events• Familial experience with psychological
disorders and/or suicide
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Sociocultural Factors in Suicide
• More common among college students than people of the same age who do not attend college
• Older people are more likely to commit suicide than teenagers
• Suicide rate among older unmarried or divorced people is double that of older married people
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Sociocultural Factors in Suicide
• One in six Native Americans has attempted suicide
• African Americans are least likely to attempt suicide
• Three times as many females attempt suicide• Five times as many males succeed in suicide
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Myths about Suicide
• Individuals who fail at suicide are only seeking attention
• Discussion of suicide prompts suicide attempts
• People who would take their own lives are insane
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Schizophrenia
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Schizophrenia
• Severe psychological disorder characterized by disturbances in – thought and language,– perception and attention,– motor activity,– mood,– withdrawal and absorption in fantasy
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Positive Versus Negative Symptoms
• Positive symptoms– Presence of inappropriate behaviors• Agitated behavior, hallucinations, delusions,
disorganized thinking, nonsensical speech
• Negative symptoms– Absence of appropriate behaviors• Flat, emotionless voices, blank faces, rigid, motionless
bodies, mutism
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Problems in Thinking and Language
• Thought disorder– Thinking and communication become unraveled– Delusions• of grandeur• of persecution• of reference
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Problems in Perception
• Hallucinations– May be visual or auditory
• Motor activity may become wild or slowed– Stupor
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Truth or Fiction?
• People with schizophrenia may see and hear things that are not really there.
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Truth or Fiction?
• People with schizophrenia may see and hear things that are not really there.
• TRUE!
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Types of Schizophrenia
• Paranoid Schizophrenia– Systematized delusions
• Disorganized Schizophrenia– Incoherence; extreme social impairment
• Catatonic Schizophrenia– Motor impairment; waxy flexibility
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Explaining Schizophrenia
• Psychological– Behaviorists – conditioning and observational
learning
• Sociocultural– Socioeconomic class
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Explaining Schizophrenia
• Biological– Brain differences– Heredity– Complications during pregnancy and birth– Birth during winter– Dopamine theory of schizophrenia
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Average Rates of Loss of Gray Matter Among Normal
Adolescents and Adolescents Diagnosed with Schizophrenia
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Relationship to a Person Diagnosed with Schizophrenia and
Likelihood of Being Diagnosed with Schizophrenia Oneself
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Explaining Schizophrenia
• Biopsychosocial perspective– Genetic predisposition– Genetic vulnerability interacts with other factors
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The Biopsychosocial Model of Schizophrenia
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Personality Disorders
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Personality Disorders
• Characterized by enduring patterns of behavior that are maladaptive and inflexible
• Impair personal or social functioning• Source of distress
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Types of Personality Disorders
• Paranoid Personality Disorder– Interpret other’s behavior as threatening or
demeaning
• Schizotypal Personality Disorder– Peculiarities of thought, perception, or behavior
• Schizoid Personality Disorder– Indifference to relationships and flat emotional
response
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Truth or Fiction?
• Some people can kill or maim others without any feelings of guilt.
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Truth or Fiction?
• Some people can kill or maim others without any feelings of guilt.
• TRUE!
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Types of Personality Disorders
• Borderline Personality Disorder– Instability in relationships, self-image, and mood
• Antisocial Personality Disorder– Persistently violate the law– Show no guilt or remorse and are largely
undeterred by punishment
• Avoidant Personality Disorder– Avoid relationships for fear of rejection
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Origins of Personality Disorders
• Biological– Genetic factors• Personality traits that may be inherited• Antisocial personality – less gray matter in prefrontal
cortex
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Explaining Personality Disorders
• Psychological– Learning theory• Childhood experiences
– Cognitive• Misinterpretation of other people’s behaviors
• Sociocultural– Borderline personality – may reflect the
fragmented society in which one lives