Mental Disorders

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Author:
casiemarie
ID:
238053
Filename:
Mental Disorders
Updated:
2013-10-01 04:04:34
Tags:
Psychobiology Psychological Disorders
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Description:
exam 1 study guide
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  1. psychosocial mental illness
    • freud: psychoanalysis
    • skinner: behaviorism

    *brain is modified through learning and early experiences, which then alter behaviors
  2. biological mental illness
    • tracing of some mental illness to biological causes
    • fear evoked by a threatening stimulus
    • hypothalamus centrally involved in orchestrating the appropriate humoral, visceromotor and somatic motor responses
  3. Hypothalamix-Pituutary adrenal (HPA) axis
    • 1.hypothalamus releases Corticotropin-releasing hormone(CRH)
    • 2.anterior pituitary gland releases adrenocorticotropic hormone (ACTH)
    • 3. adrenal cortex releases Cortisol
    • 4. increase in blood sugar, suppress immune system, increase metabolism
  4. amygdala and prefrontal cortex's roles in
    anxiety
    • amygdala: receive highly processed information from the neocortex
    • prefrontal cortex: anxiety disorders linked to elevated activity
  5. two most common classes of anxiety drugs
    • Benzodiazepines  
    • Serotonin
  6. Benzodiazepines anxiolytic drugs
    • EX: VALIUM
    • bind to receptor sites on GABA (chlorine channels) to allow much more effective GABA functioning (inhibitory neurotransmitter) 
    • suppression of activity in the brain circuits used in stress response
    • immediate effect
  7. Serotonin
    • EX: SSRIs, PROZAC
    • selective reuptake inhibitors 
    • prolong the actions of relseased serotonin at their recptors
    • effects develop slowly, adaption of the NS to chronically elevated brain serotonin
  8. PTSD characteristics
    • 1. re-experiencing 
    • 2. avoidance and numbing 
    • 3. hyper-arousal
  9. Schizophrenia
    a loss of contact with reality and a disruption of thought, perception, mood and movement
  10. Schizophrenia positive symptoms
    • delusions
    • hallucinations
    • disorganized thoughts
    • grossly disorganized or catatonic behavior
  11. Schizophrenia negative symptoms
    • reduced expression of emotion
    • poverty of speech
    • difficulty in initiating goal-directed behavior
    • memory impairment

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