PSYCHOLOGICAL DISORDERS

3 Symptoms

Hallucinations

hearing / seeing things

Delusions

irrational beliefs

Affective disturbances

disorders of emotion or mood

The Psychological Model

Behavioral perspective

abnormal behavior can be acquired through behavioral learning - operant and classical conditioning

Cognitive perspective

abnormal behaviors are influenced by mental processes

Social-cognitive-behavioral

behaviour, cognition and social factors all influence each other (reciprocal determinism)

Indicators of Abnormality

Distress

showing prolonged levels of unease or anxiety

Maladaptiveness

acting in ways that make others fearful or interfere with one's well-being

Irrationality

talking or acting in ways that are irrational or incomprehensible to others

Unpredictability

behaving erratically and inconsistently

Unconventionality and undesirable behavior

behaving in ways that are statistically rare and violate social norms

Diagnostic and Statistical Manual of Mental Disorders 4th Ed. (DSM-IV)

contains 300 disorders

Mood Disorders

Major depression

after the depressing event has passed but the feeling remain for weeks, months or longer

Seasonal Affective Disorder (SAD)

- most likely to experience symptoms of depression during months of shortened periods of sunlight

Bipolar disorder

alternating periods of depression and extreme mania

Anxiety Disorder

Generalized Anxiety Disorder

- persistent and pervasive feelings of anxiety that comes out of nowhere and lasts for long periods
- no external cause

Panic attacks / Panic Disorder

increased heart rate, feeling dizzy, hands become sweaty, feeling like you might die

Agoraphobia

fear of public crowded spaces, open spaces

Phobic Disorder

irrational fear of a specific object, activity or situation

claustrophobia - fear of enclosed spaces

acrophobia - fear of heights

more in TB pg 582 - 583, Table 3

CAUSE
-
Preparedness hypothesis: we have the innate tendencies to respond quickly and automatically to stimuli that posed a survival threat to our ancestors

Obsessive-Compulsive Disorder

obsessive thoughts and compulsive behaviors

tendency to run in families suggest a genetic link

learned that their anxiety-provoking thoughts are connected to harmful consequences

TREATMENT
-
changing the individual's behaviour through extinction and will inevitable change the brain

Diagnostic Label

- involves depersonalization (a result of labelling) - treating people as a diagnostic category, robs them of their individuality and identity

- lowers self-esteem and reinforces disordered behaviour

Personality Disorder

Narcissistic Personality Disorder

- exaggerated sense of self-importance, a need for constant attention or admiration and often a preoccupation with fantasies of success or power

- no empathy for others

Antisocial Personality Disorder

lack sense of responsibilities to others and violations of social norms begin early in lives: disrupts class, getting into fights and running away from home

Borderline Personality Disorder

unstable and impulsive behaviours

Developmental Disorder

Autism

impoverished ability to "read" other people, use language and interact socially

Dyslexia

difficulty in reading. not a problem of visual sensation or perception but rather abnormality in the brain's language-processing circuits

Attention Deficit Hyperactivity Disorder (ADHD)

disability involving short attention span, distractibility and extreme difficulty in remaining inactive for any period

Schizophrenia

TYPES

Disorganized

incoherent speech, hallucinations, delusions and bizarre behaviour

Catatonic

involves remaining motionless or extreme excitement

Paranoid

combination of delusions and hallucinations

Undifferentiated

displaying a combination of symptoms that do not clearly fit in one of the other categories

Residual

had a past episode of schizophrenia but are free of symptoms

SYMPTOMS

Positive
- person displays active symptoms (e.g. delusions, hallucinations)

Negative
- passive processes and deficiencies (e.g. social withdrawal, lack of emotional expression, lack of pleasure in life and poverty of thinking)

CAUSES

Genetics

Abnormal brain structure
- enlarged ventricles in brain of schizophrenic twin

Biological factors
- antipsychotic drugs which interfere with the brain's dopamine receptors, suppress symptoms of positive schizophrenic symptoms

- drugs that stimulate dopamine reactions can actually produce schizophrenic reactions

Diathesis-stress hypothesis
- genetic factor place the individual at risk but environmental stress factors transform this potential into an actual schizophrenic disorder

Dissociative Disorder

Dissociative Amnesia

individual blocks out certain information, usually associated with a stressful incident, leaving one unable to remember personal information

Dissociative Fugue

dissociative amnesia with the addition of "flight"from one's home, family and job

Depersonalization Disorder

involves a sensation that mind and body has separated

individual who experienced severe physical trauma, had a near-death experience or using recreational drugs may report symptoms of depersonalization

Dissociative Identity Disorder

individual displaying more than two identities

may be a defense by the dominant personality to protect oneself from terrifying events or memories

has a consciousness of its own and emerges suddenly usually under stress

Somatoform Disorder

Conversion Disorder

paralysis, weakness, loss of sensation but with no physical cause

problem seems to be "all in the mind"

Hypochondriasis

individual worry about getting sick. every ache and pain signals a disease

some parts of the personality have become detached (dissociated) for, one's sense of self