Schizophrenia psychological explanations

2 psychological causes of Schizophrenia - with evaluation

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  • Created by: shonaj442
  • Created on: 23-03-14 16:50
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  • Schizophrenia psychological explanations
    • Cognitive
      • Thought disturbance
      • Neuropsychologists combine bio to psycho
        • Hemesley
        • Frith
          • Faulty operations
            • -inability to generate willed action - inability to monitor beliefs - cannot be in control of goals
              • Provided a framework for explaining symptoms
                • Research in inconclusive and reductionist - ignored enviro
                  • Do not give a full explanation of where the disorder came from.
                    • Tried to link to hippocampus (dopamine) - little evidence
    • Psychosocial
      • Economic status
        • social causation hypothesis
          • Schzio more common in migrant popuations
            • social drift hypothesis
            • Afro carrib  more likely to be diagnosed in UK.  western principles?  stress of living with racial discrimination?
        • social drift hypothesis
      • Life events
        • Brown (retrospective) - twice as many LE
          • No evidence that it can bring it on. However, link is stronger for relapse than onset
            • Hirsch (prospective) - found link of cumulative contribution over longer time
        • Hirsch (prospective) - found link of cumulative contribution over longer time
      • Family factors
        • prevent correct construction of reality = symptoms
          • contradictory messages
            • Lidz - marital schism = parental row can cause schiz
              • Other studies found no difference in parental communication in families with schiz
                • Destructive on family - hard enough already without blame
                  • India- strong network, low EE, low relapse
          • Expressed emotion
            • Therapy support - reduced EE, reduced relapse
              • India- strong network, low EE, low relapse
            • Any contact, not just family
              • Cause/effect
                • Less common when patient has had 1 episode
      • Labelling theory
        • Self-fulfilling prophecy
          • Sheff found consistent 13/18 studies
            • Free will
  • Schzio more common in migrant popuations
    • Afro carrib  more likely to be diagnosed in UK.  western principles?  stress of living with racial discrimination?
  • Any contact, not just family
    • Cause/effect
      • Less common when patient has had 1 episode

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