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Outline and evaluate one or more biological explanation of schizophrenia.

One biological explanation of schizophrenia is genetics. Family, twin and adoption studies suggest
that genetics play a role in the development of schizophrenia. Children of two schizophrenic
biological parents have a 46% chance of developing schizophrenia themselves. Gottesman found

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schizophrenia is caused by brain chemistry and genetics. They are on opposite sides of the Nature vs.
Nurture debate with the psychological explanation supporting nurture, favouring the view that
schizophrenia is caused by life events; our environment, upbringing family etc. E.g. research shows
that dysfunctional family interaction where there is…


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