Characteristics of stereomovement suppression

Abstract

The suppression of visibility of stereomovement was investigated for sinusoidal depth movement of a test line with an antiphase reference line. Suppression occurred above a rate of oscillation of 1 Hz, whereas enhancement was observed below 1 Hz. Suppression was also found for vertical movement of horizontal stimulus lines. Suppression must therefore result from the processes of fusion rather than stereoscopic depth perception. Suppression was reduced with peripheral observation of the stimulus. © 1975 Psychonomic Society, Inc.