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| Research article summary (published 29 Apr 2002): |
Visual perception of planar orientation: dominance of static depth cues over motion cues.
Full Abstract
We measured the ability to report the tilt (direction of maximal slope) of a plane under monocular viewing conditions, from static depth cues (square grid patterns) and motion parallax (small rotations of the plane about a frontoparallel axis). These two cues were presented separately, or simultaneously. In the latter case they specified tilts that were either collinear (coherent case) or orthogonal (conflict case). The field of view was small (8 degrees) or large (60 degrees). In small field, for motion parallax, the reported tilt depends strongly on the orientation of the plane relative to the rotation axis, being totally ambiguous when tilt is collinear with the rotation axis. In contrast, in large field, the reported tilt depends little on this variable, and is accurately specified by motion cues. In both cases static cues strongly dominated the tilt reports. Hence static grid patterns constitute robust tilt cues, which can dominate contradictory tilt indications from motion parallax, and should be considered as essential for the visual orientation during locomotion, or the immersion in virtual reality environments.
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Author information
Author/s: Cornilleau-Pérès, Valérie (V); Wexler, Mark (M); Droulez, Jacques (J); Marin, Emmanuel (E); Miège, Christian (C); Bourdoncle, Bernard (B);
Affiliation: IPAL-CNRS, KRDL, 21 Heng Mui Keng Terrace, 119613, Singapore\. rjizaac(-atsign-)singnet.com.sg
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Vision research (Vision Res), published in England. (Language: eng)
Reference: 2002-May; vol 42 (issue 11) : pp 1403-12
Dates: Created 2002/06/04; Completed 2002/09/30; Revised 2006/11/15;
PMID: 12044746, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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