continuing and distance education introductory psychology 1023 lecture 6: abnormal psychology...
TRANSCRIPT
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Continuing and Distance EducationIntroductory Psychology 1023Lecture 6: Abnormal Psychology
Reading: Chapter 14
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Salem witch trial
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Abnormality
• Behavior is – Statistically unusual– Maladaptive or harmful behavior– Labeled “abnormal” because of a violation of
cultural standards– Mental disorder as suffering, personal distress
• Historical examples of abnormal behavior:– psychosis: demon possession, syphillis– mentally retarded individuals & midgets were
“court-jesters”– Salem witch trials: girls may have ingested ergot,
LSD derivative
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Diagnosis: DSM-IV
• Diagnostic and Statistical Manual, 4th Ed. (APA, 1994)
• Axis I: Clinical syndromes/ Mental disorders
• Axis II: Personality and Disorders• Axis III: General Medical Conditions• Axis IV: Psychosocial and Environmental
Problems • Axis V: GAF Scale (1:low to 100:high)
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Problems with DSM
• Overdiagnosis• Power of diagnostic labels, e.g., person
“becomes the disorder”• Mental disorder vs. “everyday problems”,
e.g., bad spellers?• Illusion of objectivity• But diagnosis leads to treatment, categories
lead to empirical verification, and there is cross-cultural evidence of various mental health problems such as psychosis and depression
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Kinds of Disorders
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Specific kinds of anxiety disorders
• Phobias: Simple, social, and agoraphobia
• Panic Disorder: Bouts of intense and uncontrollable anxiety
• Generalized anxiety disorder: Chronic• Stress Disorder: PTSD• Obsessive-Compulsive Disorder
– obsession: unwanted impulses or thoughts– compulsion: uncontrolled repetitive act
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Dissociative Disorders
• Dissociative amnesia: Memory loss for specific events or people
• Fugue: Total memory loss after stress, relocation and starting a new life
• Dissociative Identity Disorder (MPD)– two or more identities that coexist– associated with child trauma such as abuse– abused children sometimes “leave their
bodies”
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Mood Disorders
• Unipolar depression• 10-20% depressed
at some point in life• multiple causes• low self-esteem,
loss of motivation, pessimism
• women > men• Maladaptive
cognitions
• Bipolar disorder• 1% of population• genetically
mediated• depressive and
manic symptoms• mania related to
high energy and shifts of attention
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Schizophrenia
• Negative symptoms: Behavior deficits– blunting of emotions– language deficits– apathy and social avoidance
• Active symptoms: Behaviors present– delusions: disordered thinking– hallucination: unusual sensory experience– disorganised incoherent speech– other bizarre behavior
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Personality Disorders
• Stable & extreme personality features that affect happiness or adjustment
• Examples:– Paranoid: suspicious of others– Borderline: Mood and self-image unstable– Narcissistic: Self-centred, no empathy – Histrionic: Dramatic, manipulative, shallow – Antisocial: Break law, cheat & lie, no concern
for others, lack empathy, impulsive, brain involvement
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Models of abnormality
• Environmental– Conditioning: Reinforcement/Punishment– Snake bite leads to snake phobia– Cultural factors
• Cognitive: Distorted thinking– Negative thoughts and depression– Maladaptive attributions
• Medical: Physiological imbalance– Neurotransmitters, genetics