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Biological Explanations of Schizophrenia

Genetic Factors

The strength of biological explanations of schizophrenia can be seen in the support these have
received from research studies.

The involvement of genetic factors in schizophrenia can be seen in family studies such as that
carried out by Gottsman. These studies have established that…

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contrasted with schizophrenic patient not prescribed with drugs whose post-mortem revealed
normal levels of dopamine.

While advances in PET scanning has allowed researchers to investigate dopamine activity
more precisely, evidence for altered brain activity in schizophrenic sufferers has yet to be
convincing.

Neuroanatomical Factors

Scanning has also allowed researchers to…

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