Coupling online control and inhibitory systems in children with Developmental Coordination Disorder: Goal-directed reaching

For children with Developmental Coordination Disorder (DCD), the real-time coupling between frontal executive function and online motor control has not been explored despite reported deficits in each domain. The aim of the present study was to investigate how children with DCD enlist online control...

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Main Authors: Ruddock, S., Piek, Jan, Sugden, D., Morris, Susan, Hyde, C., Caeyenberghs, K., Wilson, P.
Format: Journal Article
Published: Pergamon 2015
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/21656
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author Ruddock, S.
Piek, Jan
Sugden, D.
Morris, Susan
Hyde, C.
Caeyenberghs, K.
Wilson, P.
author_facet Ruddock, S.
Piek, Jan
Sugden, D.
Morris, Susan
Hyde, C.
Caeyenberghs, K.
Wilson, P.
author_sort Ruddock, S.
building Curtin Institutional Repository
collection Online Access
description For children with Developmental Coordination Disorder (DCD), the real-time coupling between frontal executive function and online motor control has not been explored despite reported deficits in each domain. The aim of the present study was to investigate how children with DCD enlist online control under task constraints that compel the need for inhibitory control. A total of 129 school children were sampled from mainstream primary schools. Forty-two children who metre search criteria for DCD were compared with 87 typically developing controls on a modified double-jump reaching task. Children within each skill group were divided into three age bands: younger (6–7years), mid-aged (8–9), and older (10–12). Online control was compared between groups as a function of trial type (non-jump, jump, anti-jump). Overall, results showed that while movement times were similar between skill groups under simple task constraints (non-jump), on perturbation (or jump) trials the DCD group were significantly slower than controls and corrected trajectories later. Critically, the DCD group was further disadvantaged by anti-jump trials where inhibitory control was required; however, this effect reduced with age. While coupling online control and executive systems is not well developed in younger and mid-aged children, there is evidence of age-appropriate coupling in older children. Longitudinal data are needed to clarify this intriguing finding. The theoretical and applied implications of these results are discussed.
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spelling curtin-20.500.11937-216562019-02-19T04:25:52Z Coupling online control and inhibitory systems in children with Developmental Coordination Disorder: Goal-directed reaching Ruddock, S. Piek, Jan Sugden, D. Morris, Susan Hyde, C. Caeyenberghs, K. Wilson, P. predictive modelling inhibitory control motor learning motor control motor development Developmental coordination Disorder (DCD) executive function For children with Developmental Coordination Disorder (DCD), the real-time coupling between frontal executive function and online motor control has not been explored despite reported deficits in each domain. The aim of the present study was to investigate how children with DCD enlist online control under task constraints that compel the need for inhibitory control. A total of 129 school children were sampled from mainstream primary schools. Forty-two children who metre search criteria for DCD were compared with 87 typically developing controls on a modified double-jump reaching task. Children within each skill group were divided into three age bands: younger (6–7years), mid-aged (8–9), and older (10–12). Online control was compared between groups as a function of trial type (non-jump, jump, anti-jump). Overall, results showed that while movement times were similar between skill groups under simple task constraints (non-jump), on perturbation (or jump) trials the DCD group were significantly slower than controls and corrected trajectories later. Critically, the DCD group was further disadvantaged by anti-jump trials where inhibitory control was required; however, this effect reduced with age. While coupling online control and executive systems is not well developed in younger and mid-aged children, there is evidence of age-appropriate coupling in older children. Longitudinal data are needed to clarify this intriguing finding. The theoretical and applied implications of these results are discussed. 2015 Journal Article http://hdl.handle.net/20.500.11937/21656 10.1016/j.ridd.2014.10.013 Pergamon fulltext
spellingShingle predictive modelling
inhibitory control
motor learning
motor control
motor development
Developmental coordination Disorder (DCD)
executive function
Ruddock, S.
Piek, Jan
Sugden, D.
Morris, Susan
Hyde, C.
Caeyenberghs, K.
Wilson, P.
Coupling online control and inhibitory systems in children with Developmental Coordination Disorder: Goal-directed reaching
title Coupling online control and inhibitory systems in children with Developmental Coordination Disorder: Goal-directed reaching
title_full Coupling online control and inhibitory systems in children with Developmental Coordination Disorder: Goal-directed reaching
title_fullStr Coupling online control and inhibitory systems in children with Developmental Coordination Disorder: Goal-directed reaching
title_full_unstemmed Coupling online control and inhibitory systems in children with Developmental Coordination Disorder: Goal-directed reaching
title_short Coupling online control and inhibitory systems in children with Developmental Coordination Disorder: Goal-directed reaching
title_sort coupling online control and inhibitory systems in children with developmental coordination disorder: goal-directed reaching
topic predictive modelling
inhibitory control
motor learning
motor control
motor development
Developmental coordination Disorder (DCD)
executive function
url http://hdl.handle.net/20.500.11937/21656