Abrupt, but not gradual visuomotor distortion facilitates adaptation in children with developmental coordination disorder.

Abrupt, but not gradual visuomotor distortion facilitates adaptation in children with developmental coordination disorder. Research Abstract Details 

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Abrupt, but not gradual visuomotor distortion facilitates adaptation in children with developmental coordination disorder. Abstract Text:

F A Kagerer,J L Contreras-Vidal,J Bo,J E Clark,

A previous experiment investigating visuomotor adaptation in typically developing children and children with Developmental Coordination Disorder (DCD) suggested poor adaptation to an abruptly induced visuomotor perturbation. In the current study, using a similar center-out drawing task, but administering either an abrupt or a gradual perturbation, and twice as many adaptation trials, we show that typically developing children are well able to successfully update an existing internal model in response to a 60 degrees rotation of the visual feedback, independent of the perturbation condition. Children with DCD, however, updated their internal map more effectively during exposure to an abrupt visuomotor perturbation than to a gradual one. This may suggest that the adaptation process in children with DCD responds differently to small vs. large steps of visuomotor discrepancies. Given the known role of the cerebellum in providing an error signal necessary for updating the internal model in response to a gradual visuomotor distortion, the results of our study add to the growing body of evidence implicating compromised cerebellar function in DCD.

Abrupt, but not gradual visuomotor distortion facilitates adaptation in children with developmental coordination disorder. Publishing Authors By Initials

FA Kagerer,JL Contreras-Vidal,J Bo,JE Clark,

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Abrupt, but not gradual visuomotor distortion facilitates adaptation in children with developmental coordination disorder. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Human movement science

VOLUME: 25

Page Numbers: 622-33

Journal Abbreviation:

ISSN: 0167-9457

DAY: 2

MONTH: 10

YEAR: 2006

Abrupt, but not gradual visuomotor distortion facilitates adaptation in children with developmental coordination disorder. Information

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LANGUAGE: eng

NlmUniqueID: 8300127

Abrupt, but not gradual visuomotor distortion facilitates adaptation in children with developmental coordination disorder. Keywords Mesh Terms:

KEYWORDS: Signal Processing, Computer-Assisted

MESH TERMS: psychology

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Grant and Affiliation Information for Abrupt, but not gradual visuomotor distortion facilitates adaptation in children with developmental coordination disorder.

AFFILIATION: Cognitive Motor Neuroscience Laboratory, Department of Kinesiology, Neuroscience and Cognitive Science Program, University of Maryland, College Park, MD 20742-2611, USA. fkagerer@umd.edu

Country: Netherlands

AGENCY: United States NICHD

GRANT: R01HD42527

ACRONYM: HD

MEDLINETA: Hum Mov Sci

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