Ventricular size, cognitive and psychomotor performance, and laterality in schizophrenia.

Based on the association of cerebral ventricular enlargement with cognitive impairments in schizophrenia, the present study looked for relationships between the hemispheric ventricular size and tests of performance as well as their sensitivity to neuroleptics. No meaningful relations could be established. On the contrary, wider ventricles were associated with less cognitive and psychomotor impairment and less sensitivity to neuroleptics.