Vision Research

Publication date: 2012-06
Volume: 62 Pages: 17 - 25
ISSN: 0042-6989, 1878-5646 PMID: 22503556
DOI: 10.1016/j.visres.2012.02.015
Publisher: Elsevier

Author:

Scherzer, Tom R
Ekroll, Vebjörn

Keywords:

Motion interpolation, Occlusion, Amodal completion, Science & Technology, Social Sciences, Life Sciences & Biomedicine, Neurosciences, Ophthalmology, Psychology, Neurosciences & Neurology, APERTURE PROBLEM, VISUAL-MOTION, OBJECT, PERCEPTION, MOVEMENT, SMOOTH, PHI, Cues, Humans, Motion Perception, Perceptual Masking, Photic Stimulation, Space Perception, Experimental Psychology, 11 Medical and Health Sciences, 17 Psychology and Cognitive Sciences

Abstract:

Several studies show that the perception of occlusion may affect various aspects of motion perception. Here we present data indicating that occlusion cues also influence the visual interpolation of sampled motion. Normally, sampled motion stimuli are perceived as less smooth and jerkier when the spatial gaps between successive presentations of the “moving” target stimulus increase. Adding surfaces occluding the spatial gaps, however, we found that the perceived smoothness of motion was not only better, but also independent of the gap width. We argue that this effect occurs because the visual system attributes the interruptions in the motion path to occlusion rather than to the moving object itself.