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Cerebral structural pathology in schizophrenia: evidence for a selective prefrontal cortical defect
R C Shelton1, C N Karson, A R Doran
1Clinical Brain Disorders Branch, NIMH, Washington, D.C.
The American Journal of Psychiatry
|February 1, 1988
Summary
Schizophrenia patients exhibit significant brain structure differences, including enlarged ventricles and greater prefrontal cortical markings compared to healthy individuals. These findings confirm structural abnormalities in the brain associated with schizophrenia.
Area of Science:
- Neuroimaging
- Psychiatry
- Radiology
Background:
- Schizophrenia is associated with structural brain abnormalities.
- Previous research indicates enlarged ventricles and cortical changes.
Purpose of the Study:
- To replicate findings of cerebral structural abnormalities in schizophrenia.
- To investigate specific prefrontal cortical irregularities using computerized tomography (CT).
Main Methods:
- CT scans of 71 chronic schizophrenia patients and 30 controls were analyzed.
- Measurements included ventricle-brain ratio (VBR), third ventricle width, and cortical markings.
- Data were compared between patients and controls, focusing on prefrontal vs. generalized areas.
Main Results:
- Schizophrenia patients had significantly larger VBRs and third ventricle widths than controls.
- Patients showed significantly greater prefrontal cortical markings.
- Gender differences were observed in third ventricle width, but not VBR or prefrontal atrophy.
Conclusions:
- The study confirms central and cortical cerebral structural abnormalities in schizophrenia.
- Prefrontal cortical atrophy is a notable feature in schizophrenia patients.
- Ventricle enlargement and prefrontal changes are key neuroimaging markers in schizophrenia.