The pupillary response as a potential indicator of vulnerability to schizophrenia

This study deals with pupillary activity in psychiatric patients. It is part of a larger project investigating vulnerability to schizophrenia. The approach consists of a search for performance characteristics and physiological measures that would identify subjects at risk for schizophrenia. The findings of this study to date indicate that monitoring of the pupillary response and evoked potential under conditions of certainty and uncertainty, particularly with respect to auditory stimuli, can provide an indication of impaired functioning.