Psychological Disorders
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Transcript Psychological Disorders
Psychological Disorders:
More Than Everyday Problems
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Today’s class
What is Abnormal?
Diagnostic system: DSM IV
Types of Disorders
Dissociative
Anxiety
Schizophrenia
Mood
Personality
Work on projects, review exam
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Psychological Disorder
The presence of a constellation of symptoms
that create significant distress; impair work,
school, family, relationships, or daily living; or
lead to significant risk or harm
Symptoms
Cognitive
Emotional
Behavioral
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How do we decide what is
abnormal
Class exercise
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Defining Abnormality
Distress
Impairment
Danger
Cultural and social influences
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Historical explanations of
abnormality
Ancient Greece – fluid imbalance
Middle ages – work of the devil
1800’s to present – Sigmund Freud
Present – Biopsychosocial model
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Explaining Abnormality
The Brain
Genes
Neurotransmitters
Brain Structure and Function
Diathesis (of the Diathesis-Stress Model)
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Explaining Abnormality
The Person
Classical and Operant Conditioning
Cognitive Biases
Emotions
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Explaining Abnormality
The Group
Culture Conception of Disorders
Social labeling creates disorders?
Social factors can lead to diagnostic bias
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Causation
1. Predisposition
In place before onset of disorder
• genetic characteristics, learned beliefs, sociocultural factors
2. Precipitating causes
Immediate events that bring on the disorder
• Stress, Negative or positive life changes
3. Maintaining causes
Effects of disorder that serve to perpetuate it
depressed person may withdraw from social interactions
Schizophrenics are reacted to strangely or violently, enhancing
their stress, which enhances the disorder
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Diagnosing Disorders
Use diagnostic interview
Performance on Psychological Tests
e.g., MMPI, Projective tests
Interviews with Family & Friends
Compare patient information to pre-established
psychological disorders
Diagnostic and Statistical Manual of Mental
Disorders (DSM-IV)
DSM IV: Agreed-upon criteria for diagnosing
psychological disorders
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Diagnosis: The first step in
treatment
Someone
Someone
Someone
arm?
Someone
voices?
came in with a rash?
came in with a cough?
came in who couldn’t move an
came in who was hearing
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Labels and Abnormality
Rosenhan: “On being sane in insane
places”
8 pseudopatients claimed to hear voices
Admitted to psychiatric hospitals
Stopped reporting symptoms
Normal behaviors were interpreted as
pathological
Doctors rarely responded to questions
Many real patients were not fooled
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Categorizing Disorders
Diagnostic and Statistical Manual of
Mental Disorders, 4th edition (DSM-IV)
Axis I: clinical disorders
Axis II: personality disorders and mental
retardation
Axis III: general medical conditions
Axis IV: psychosocial and environmental problems
Axis V: global assessment of functioning
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Classification Systems & Labeling:
Advantages
Advantages:
•
•
grouping of similar symptoms may help
to identify underlying causes
facilitates communication
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Classification Systems & Labeling:
Disadvantages
May seem dehumanizing for patients
Better to apply diagnostic labels to the disorder
and NOT to the people themselves
May lead clinicians to overlook unique
aspects of each case
Label becomes a lens through which we see
and evaluate a person’s behavior
Is a label the same as a diagnosis?
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Mood Disorders
Persistent or episodic disturbances in emotion
that interfere with normal functioning in at least
one realm of life
Major depressive disorder
Affect
Behavior
Cognition
More common in women
Most common psychological disorder in the United
States
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Mood Disorders
Dysthymia
Lifetime prevalence 6%
Suicide
Attempted by 30% of depressed people
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Mood Disorders
Bipolar disorder
Mania
Hypomania
Manic episode
Prodromal phase
Often cycles with depression
Formerly called manic depression
Lifetime prevalence 1%
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Explaining Mood Disorders
The brain
The person
Hereditary factors
Frontal lobe
Amygdala
Beck’s negative triad
Learned helplessness
Attributional style
The group
Life stressors
Lack of social reinforcement
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Anxiety Disorders
Generalized anxiety disorder
Panic disorder
Panic attacks
Agoraphobia
Locus coeruleus
Anxiety sensitivity
Lifetime prevalence 3%
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Anxiety Disorders
Phobias
Social phobia
Lifetime prevalence 13%
Specific phobia
Animal fears
Blood-injection-injury fears
Natural environment fears
Situation fears
Miscellaneous fears
Lifetime prevalence 10%
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Anxiety Disorders
Obsessive-compulsive disorder (OCD)
Obsession
Compulsion
Checking
Washing
Ordering
Lifetime prevalence 2-3%
Caudate nucleus
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Anxiety Disorders
Posttraumatic stress disorder (PTSD)
Traumatic event
Fear and helplessness
Symptoms
Re-experience event
Avoidance and emotional numbing
Heightened arousal
Lifetime prevalence 8% (among
Americans)
Genetic predisposition
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Schizophrenia
Positive symptoms
Delusions
Hallucinations
Disordered behavior
Disorganized speech
Negative symptoms
Flat affect
Alogia
Avolition
Lifetime prevalence 1%
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Schizophrenia
Four subtypes
Paranoid
Disorganized
Catatonic
Undifferentiated
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Explaining Schizophrenia
The brain
The person
Hereditary
Ventricle size
Stress-related hormones
The dopamine hypothesis
Emotional dampening
The group
High expressed emotion
Social selection and social causation
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Testing yourself
Name that disorder
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