The brain stem in psychosis.

The brain stems of 24 mental hospital patients and 10 control patients were examined. Ten mental hospital patients were either deluded or auditorily hallucinated in clear consciousness, and of this group 8 presented with a diagnosis of schizophrenic syndrome. The nature and significance of lesions found in the midline reticular nuclei and the trigeminal n. are discussed. The results, and the dearth of other published material on this subject, indicate the need for further work in this field.