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Schizophrenia is a complex mental disorder with both biological and psychological explanations. The genetic basis, neural correlates, and dopamine hypothesis highlight biological influences, while family dysfunction and cognitive theories provide psychological perspectives. Treatment approaches include typical and atypical antipsychotics, CBT, family therapy, and token economies. The interactionist approach, based on the diathesis-stress model, suggests that schizophrenia develops from a combination of genetic vulnerability and environmental stressors. Understanding these explanations and treatments is crucial for mastering the AQA A-Level Psychology Schizophrenia unit and achieving exam success.