The British Journal of Psychiatry 150: 324-330 (1987)
© 1987 The Royal College of Psychiatrists
Cerebral ventricular enlargement in chronic schizophrenia: consistencies and contradictions
A Farmer, R Jackson, P McGuffin and P Storey
Institute of Psychiatry, London.
A study of cerebral ventricular size measured as ventricle to brain ratio
(VBR) using computerised tomographic brain scan in chronic schizophrenics
provided no support for suggestions that there are significant differences
between patients who fall into different clinical subtypes. We found no
significant difference in VBR between patients with and without a family
history of schizophrenia or between those with or without paranoid
symptoms. Applying Crow's classification, contrary to expectations, Type 1
patients had significantly larger ventricles than those with 'mixed'
symptomatology (both Type 1 and Type 2 features). We also applied a variety
of operational criteria which attempt to define schizophrenia as a whole:
of these only Schneider's first-rank symptoms (FRS) yielded conclusive
results--FRS-positive patients had significantly larger mean VBR than those
without such symptoms. Previously, it has been suggested that ventricular
enlargement is more closely associated with 'negative' than with 'positive'
symptoms.