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Using visual direction in three-dimensional motion perception

Lookup NU author(s): Dr Vit Drga

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Abstract

The eyes receive slightly different views of the world, and the differences between their images (binocular disparity) are used to see depth. Several authors have suggested how the brain could exploit this information for three-dimensional (3D) motion perception, but here we consider a simpler strategy. Visual direction is the angle between the direction of an object and the direction that an observer faces. Here we describe human behavioral experiments in which observers use visual direction, rather than binocular information, to estimate an object's 3D motion even though this causes them to make systematic errors. This suggests that recent models of binocular 3D motion perception may not reflect the strategies that human observers actually use.

Publication metadata

Author(s): Harris JM, Drga VF

Publication type: Article

Publication status: Published

Journal: Nature Neuroscience

Year: 2005

Volume: 8

Issue: 2

Pages: 229-233

Print publication date: 01/02/2005

ISSN (print): 1097-6256

ISSN (electronic): 1546-1726

Publisher: Nature Publishing Group

URL: http://dx.doi.org/10.1038/nn1389

DOI: 10.1038/nn1389

PubMed id: 15665878

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