Rate of binocular rivalry alternation in psychotic and nonpsychotic patients.

To determine the relationship between binocular rivalry rate and the presence of psychopathology, rivalry rate measures for 2 1-min. observation periods were taken from 3 matched groups of organic, schizophrenic, and nonorganic-nonpsychotic patients. The rate of the nonorganic-nonpsychotic group increased significantly over observation periods relative to the other groups, a result consistent with other data which suggests that rate provides some measure of cognitive efficiency. Differences in rate between organic and schizophrenic groups were not found, contrary to previous report. Procedural variables which could account for the discrepancy are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)