Biological explanations of schizophrenia: ventricles

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Psychology unit 4 schizophrenia
Biological explanations of schizophrenia- ventricles
Description
There is evidence from MRI scans and autopsies that schizophrenia may have been
caused by enlarged ventricles. It is thought that the negative symptoms could be
due to brain damage. Type 2 schizophrenics have larger ventricles and smaller
amounts of grey matter and frontal lobes. Reduced barin matter may be the cause
of a lack of functioning.
Evaluation
Correlational evidence as it only links large ventricles to negative
symptoms. So whilst we know that the two are linked we cannot know if
enlarged ventricles are the cause or whether the enlarged ventricles are
caused by something else.
Antipsychotics have been known to destroy brain cells leading to larger
ventricles. Therefore schizophrenia might not be caused by enlarged
ventricles as the enlarged ventricles are caused by drugs;

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