Eye movement and visual illusion perception in chronic schizophrenia

Numerous studies have examined the relationship between smooth pursuit eye movements and motion perception. In this study, it was testified that the abnormality of smooth pursuit eye movements in the chronic schizophrenic patients was associated with the positive syndrome and was related to the negative syndrome by using the illusory motion stimuli. The visual perceptual accuracy about the illusory motion stimuli was lower in the patient groups with chronic schizophrenic than in the normal control group. These results imply that schizophrenics have deficits in smooth pursuit eye movement and these deficits causes the differences of motion perception between schizophrenics and normal adults.