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 fromEEG'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.Abstract Teaser