The use of predictive information is impaired in the actions of children and young adults with Developmental Coordination Disorder

Abstract

The need for a movement response may often be preceded by some advance information regarding direction or extent. We examined the ability of individuals with Developmental Coordination Disorder (DCD) to organise a movement in response to advance information. Pre-cues were presented and varied in the extent to which they indicated the response target. Both eye movement latencies and hand movements were measured. In the absence of pre-cues, individuals with DCD were as fast in initial hand movements as the typically developing (TD) participants, but were less efficient at correcting initial directional errors. A major difference was seen in the degree to which each group could use advance pre-cue information. TD participants were able to use pre-cue information to refine their actions. For the individuals with DCD this was only effective if there was no ambiguity in the advance cue and they had particular difficulty in using predictive motion cues. There were no differences in the speed of gaze responses which excluded an explanation relating to the dynamic allocation of attention. Individuals with DCD continued to rely on the slower strategy of fixating the target prior to initiating a hand movement, rather than using advance information to set initial movement parameters.

DOI: 10.1007/s00221-008-1532-4

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@article{Wilmut2008TheUO, title={The use of predictive information is impaired in the actions of children and young adults with Developmental Coordination Disorder}, author={Kate Wilmut and John P. Wann}, journal={Experimental Brain Research}, year={2008}, volume={191}, pages={403-418} }