Size of the corpus callosum and auditory comprehension in schizophrenics and normal controls

19 schizophrenic patients and 15 normal controls, matched for sex and age, were evaluated by magnetic resonance imaging for corpus callosal size and had neuropsychological functioning assessed using an auditory comprehension test. Although the MRI data did not reveal any significant differences between groups, the degree of laterality to the left versus right ear response was significantly correlated with the size of the posterior part of the corpus callosum in male schizophrenics.