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| Research article summary (published 30 Dec 2002): |
Interactions between ocular motor and manual responses during two-dimensional tracking.
Full Abstract
Tracking of a moving target usually involves coordinated movements of the eye and the hand. To study the extent to which one behavior influences the other, eye and hand movements were recorded during three conditions (eye alone, hand alone, and eye and hand together) where subjects tracked a target that initially moved in a straight line and then made an abrupt and unpredictable change in direction. The response latencies of the eye and hand were influenced by the presence of the other tracking modality. More specifically, the latency for the hand was decreased during concomitant ocular tracking, whereas the latency for the eye was increased during combined hand-eye tracking. Moreover, the velocity profile of the smooth pursuit component of ocular tracking was different when the hand also tracked the target. Taken together, these observations support the hypothesis that at least part of the neural substrate underlying tracking is shared by the two modalities.
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Author information
Author/s: Engel, Kevin C (KC); Soechting, John F (JF);
Affiliation: Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA.
Grants: NS 15018 (Agency:United States NINDS)
Journal and publication information
Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.
Journal: Progress in brain research (Prog Brain Res), published in Netherlands. (Language: eng)
Reference: 2003-; vol 142 (issue ) : pp 141-53
Dates: Created 2003/04/15; Completed 2003/05/09; Revised 2007/11/14;
PMID: 12693259, 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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