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Title: Vertical-disparity gradients are processed independently in different depth planes
Authors: Duke, P. A.
Howard, I. P.
First Published: 2005
Citation: Vision Research, 2005, 45 (15), pp.2025-2035
Abstract: We examined the effects of vertical-disparity gradients on apparent depth curvature of textured surfaces. In Experiment 1, vertical disparities induced expected curvatures when the surface had a horizontal disparity of < ±40.34′. A central row of elements, lacking vertical disparities, ceased to have the same apparent curvature as the surface when the horizontal disparity between row and surface exceeded ±5′. In Experiment 2, vertical disparities were not pooled between superimposed surfaces separated by horizontal disparities > ±10′. Thus, vertical-disparity gradients are not pooled over depth for curvature perception. Our results suggest that vertical disparities are used to determine distances to surfaces directly, rather than to estimate vergence.
DOI Link: 10.1016/j.visres.2005.01.027
ISSN: 0042-6989
Type: Article
Appears in Collections:Published Articles, School of Psychology

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