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| Research article summary (published 29 Nov 2002): |
Feature-specific perceptual processing dissociates action from recognition.
Full Abstract
Does visual processing differ for action and recognition? To address this question, the authors capitalized on research showing that color is preferred over binocular disparity in the ventral (recognition) stream, whereas disparity is preferred over color in the dorsal (action) stream. Participants searched for oblique targets among vertical distractors in displays defined only by color or disparity. Action-task participants stamped the target with a handheld block, whereas recognition-task participants lifted the block through a target-compatible gap. Analyses of reaction time and time-varying hand orientation showed that disparity and color displays were processed equally efficiently during action, but disparity was processed less efficiently than color during recognition. The results suggest that visual processing differs for action and recognition.
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Author information
Author/s: Brown, Liana E (LE); Moore, Cathleen M (CM); Rosenbaum, David A (DA);
Affiliation: Department of Psychology, Pennsylvania State University, University Park, Pennsylvania 16802, USA. liana1(-atsign-)psu.edu
Journal and publication information
Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
Journal: Journal of experimental psychology. Human perception and performance (J Exp Psychol Hum Percept Perform), published in United States. (Language: eng)
Reference: 2002-Dec; vol 28 (issue 6) : pp 1330-44
Dates: Created 2003/01/24; Completed 2003/04/23; Revised 2006/11/15;
PMID: 12542131, 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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