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Constrained action selection in children with developmental coordination disorder

Pettit, L., Charles, J., Wilson, A.D., Plumb, M.S., Brockman, A., Williams, J.H.G. and Mon-Williams, M. (2008) Constrained action selection in children with developmental coordination disorder. Human Movement Science, 27 (2). pp. 286-295. ISSN 0167-9457

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The effect of advance (‘precue’) information on short aiming movements was explored in adults, high school children, and primary school children with and without developmental coordination disorder (n = 10, 14, 16, 10, respectively). Reaction times in the DCD group were longer than in the other groups and were more influenced by the extent to which the precue constrained the possible action space. In contrast, reaction time did not alter as a function of precue condition in adults. Children with DCD showed greater inaccuracy of response (despite the increased RT). We suggest that the different precue effects reflect differences in the relative benefits of priming an action prior to definitive information about the movement goal. The benefits are an interacting function of the task and the skill level of the individual. Our experiment shows that children with DCD gain a benefit from advance preparation in simple aiming movements, highlighting their low skill levels. This result suggests that goal-directed RTs may have diagnostic potential within the clinic.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2008 Elsevier B.V. This is an author produced version of a paper published in 'Human Movement Science'. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: movement; DCD; duration; reaction time; action
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Psychology (Leeds) > Cognitive Psychology (Leeds)
The University of Leeds > Faculty of Biological Sciences (Leeds) > Institute of Membrane and Systems Biology (Leeds) > Cardiovascular and Sports Sciences Group (Leeds)
Depositing User: Repository Officer
Date Deposited: 18 Jun 2009 15:32
Last Modified: 08 Feb 2013 17:06
Published Version: http://dx.doi.org/10.1016/j.humov.2008.02.014
Status: Published
Publisher: Elsevier Science B.V.
Identification Number: 10.1016/j.humov.2008.02.014
URI: http://eprints.whiterose.ac.uk/id/eprint/8657

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