Am J Psychiatry 1987; 144:222-225
Copyright © 1987 by American Psychiatric Association
Auditory hallucinations and subvocal speech in schizophrenic patients
PA Bick and M Kinsbourne
Fourteen of 18 hallucinating schizophrenic patients reported that the
voices they heard went away when they undertook a maneuver that precluded
subvocalization. The same applied to 18 of 21 normal subjects who
hallucinated under the influence of hypnotic suggestion. Control maneuvers
had no such effect. The authors suggest that auditory hallucinations may be
projections of schizophrenic patients' verbal thoughts, subvocalized due to
deficient cerebral cortical inhibition.