evaluations of schizophrenia

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Positive/negative symptoms
- No universal agreement about the distinction between the two
- Term 'schizophrenia' is misleading. Likely that there are several types of severe mental disorder that we call schizophrenia.
Genetic explanation
- 46% concordance for MZ suggests genotype contributes
- Twin studies have small samples
- MZ twins are reared in more similar environments than DZ twins- cannot separate nature or nurture
- Adoption studies support inheritance
Neurochemical explanations
- Unclear whether D2 receptors is a cause of schizophrenia or an effect of medication
- Cause and effect problem throughout
- Oversimplified
Neuroanatomical explanations
- Cause and effect
- Fails to take into account environment
Cognitive theories
- Maher's model has provided a successful therapeutic model for delusions
- Inadequate on their own to explain such a complex disorder
Labelling theory
- Only accounts for how symptoms are maintained
- Ignores genetic evidence
- Trivialises a serious disorder
Family studies

Cannot untangle cause and effect
EE explanation
- Unclear whether EE is the cause for relapse or a reaction to the individual's behaviour
- Usually measured by one interview- cannot give an accurate picture of family interaction
Drug treatment
- Side effects are distressing
- Not effective for negative symptoms
SST
- Doesn't always generalise to real life
- Doesn't help with the associated distress
CSE

Usually a high drop out rate
Cognitive therapy

Research trials demonstrate a 40% reduction in psychotic symptoms
Community care
- Better quality of life
- Services are often patchy and burden on family increases
- Do fail- murder of Jonathan Zito

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Titchh

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evaluations of schizophrenia

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evaluations

Updated

2011-05-16T17:51:39Z

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