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| Research article summary (published 30 Dec 2001): |
Separate sources of spatial information for distance and location in rapid aiming movements.
Full Abstract
The purpose of this research was to examine the role of distance and location information in the production of rapid aiming movements. Participants performed an aiming task consisting of horizontal left-handed elbow flexion movements that translated to movements of a cursor on an oscilloscope screen. The location of the home position and the target on the oscilloscope screen were fixed but the initial angle of the elbow was varied randomly. Participants were informed that the required distance was always constant. Initial impulse and error correction phases were analyzed to examine whether separate spatial codes for distance and position were used in the control of these two movement phases. The results indicated that initial impulse endpoints and the final positions of the limb overshot the target from the leftmost starting positions, while they undershot the target from the rightmost starting positions. Also, varying the initial angle of the elbow had a greater influence on the final position of the limb than initial impulse endpoints.
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Author information
Author/s: Khan, Michael A (MA); Hale, Trevor (T); Garry, Michael I (MI); Franks, Ian M (IM);
Affiliation: School of Sport, Health, and Exercise Sciences at the University of Wales, Bangor, Gwynedd, UK.
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Motor control (Motor Control), published in United States. (Language: eng)
Reference: 2002-Jan; vol 6 (issue 1) : pp 84-103
Dates: Created 2002/03/12; Completed 2002/05/24; Revised 2006/11/15;
PMID: 11890148, 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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