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Does binocular disparity facilitate the detection of transparent motion?

Hibbard, PB and Bradshaw, MF (1999) 'Does binocular disparity facilitate the detection of transparent motion?' Perception, 28 (2). 183 - 191. ISSN 0301-0066

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Abstract

Recent physiological studies have established that cortical cells that are tuned for the direction of motion may also exhibit tuning for binocular disparity. This tuning does not appear to provide any advantage in discriminating the direction of global motion in random-dot kinematograms. Here we investigated the possibility that this tuning may be important in the perception of transparent motion. Random-dot kinematograms were presented which contained coherent motion in a single direction or in two opposing directions. A greater proportion of signal dots was required for the detection of transparent motion than of motion in a single direction. This difference vanished when the two opposite directions of motion were presented with different disparities. These results suggest that the direction of global motion can be computed separately for surfaces which are clearly segregated in depth.

Item Type: Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health > Psychology, Department of
Depositing User: Users 161 not found.
Date Deposited: 13 Feb 2015 21:11
Last Modified: 18 Dec 2017 14:15
URI: http://repository.essex.ac.uk/id/eprint/12550

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