Evaluation of the Electroencephalograms of Schizophrenic Patients

A study of 132 schizophrenic patients at Metropolitan State Hospital and McLean Hospital is in progress. The EEG's of these schizophrenics fall into three groups: Group I: Essentially normal. Group II: Dysrhythmic type, which is indistinguishable from EEG's of individuals known to have convulsive disorders. Group III: "Choppy" type, which suggests the possibility of a pathological condition in the brain. Patients in Group II frequently present in their histories the same syndrome as found in epileptics. These patients are either diagnosed as "catatonic schizophrenia" or give a history on the hospital ward of catatonic stupors and excitements.