3D after-effects are due to shape and not disparity adaptation


Domini, Fulvio, Adams, Wendy and Banks, Martin S. (2001) 3D after-effects are due to shape and not disparity adaptation Vision Research, 41, (21), pp. 2733-2739. (doi:10.1016/S0042-6989(01)00161-4).

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Description/Abstract

There are a variety of stereoscopic after-effects in which exposure to a stimulus with a particular slant or curvature affects the perceived slant or curvature of a subsequently presented stimulus. These after-effects have been explained as a consequence of fatigue (a decrease in responsiveness) among neural mechanisms that are tuned to particular disparities or patterns of disparity. In fact, a given disparity pattern is consistent with numerous slants or curvatures; to determine slant or curvature, the visual system must take the viewing distance into account. We took advantage of this property to examine whether the mechanisms underlying the stereoscopic curvature after-effect are tuned to particular disparity patterns or to some other property such as surface curvature. The results clearly support the second hypothesis. Thus, 3D after-effects appear to be caused by adaptation among mechanisms specifying surface shape rather than among mechanisms signaling the disparity pattern.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/S0042-6989(01)00161-4
ISSNs: 0042-6989 (print)
Related URLs:
Keywords: vision, depth, stereo, after-effect
Subjects: B Philosophy. Psychology. Religion > BF Psychology
ePrint ID: 18644
Date :
Date Event
2001Published
Date Deposited: 29 Nov 2005
Last Modified: 16 Apr 2017 23:10
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/18644

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