PMID- 23474999 OWN - NLM STAT- MEDLINE DCOM- 20131022 LR - 20220316 IS - 1873-3379 (Electronic) IS - 0891-4222 (Linking) VI - 34 IP - 5 DP - 2013 May TI - Neural underpinnings of impaired predictive motor timing in children with Developmental Coordination Disorder. PG - 1478-87 LID - S0891-4222(13)00066-8 [pii] LID - 10.1016/j.ridd.2013.02.008 [doi] AB - A dysfunction in predictive motor timing is put forward to underlie DCD-related motor problems. Predictive timing allows for the pre-selection of motor programmes (except 'program' in computers) in order to decrease processing load and facilitate reactions. Using functional magnetic resonance imaging (fMRI), this study investigated the neural correlates of motor timing in DCD (n=17) and typically developing children (n=17). The task involved motor responses to sequences of visual stimuli with predictive or unpredictive interstimulus intervals (ISIs). DCD children responded with a smaller reaction time (RT) advantage to predictive ISIs compared to typically developing children. Typically developing children exhibited higher activation in the right dorsolateral prefrontal cortex (DLPFC) and right inferior frontal gyrus (IFG) for responses at unpredictive as opposed to predictive ISIs, whereas activations in DCD children were non-differentiable. Moreover, DCD children showed less activation than typically developing children in the right DLPFC, the left posterior cerebellum (crus I) and the right temporo-parietal junction (TPJ) for this contrast. Notably, activation in the right temporo-parietal junction (TPJ) positively correlated with RT as an indicator of processing load in both groups. These data indicate that motor performance in DCD children requires extra processing demands due to impaired predictive encoding. CI - Copyright (c) 2013 Elsevier Ltd. All rights reserved. FAU - Debrabant, Julie AU - Debrabant J AD - Department of Rehabilitation Sciences and Physiotherapy, Ghent University and Artevelde University College, Campus Heymans Ghent University Hospital - 2B3 (REVAKI), De Pintelaan 185, 9000 Ghent, Belgium. Julie.debrabant@ugent.be FAU - Gheysen, Freja AU - Gheysen F FAU - Caeyenberghs, Karen AU - Caeyenberghs K FAU - Van Waelvelde, Hilde AU - Van Waelvelde H FAU - Vingerhoets, Guy AU - Vingerhoets G LA - eng PT - Journal Article DEP - 20130305 PL - United States TA - Res Dev Disabil JT - Research in developmental disabilities JID - 8709782 SB - IM MH - Anticipation, Psychological/physiology MH - Brain/*physiology MH - Cerebellum/physiology MH - Child MH - Female MH - Humans MH - *Magnetic Resonance Imaging MH - Male MH - Motor Cortex/physiology MH - Motor Skills/*physiology MH - Motor Skills Disorders/*physiopathology MH - Parietal Lobe/physiology MH - Predictive Value of Tests MH - Prefrontal Cortex/physiology MH - Psychomotor Performance/*physiology MH - Reaction Time/physiology EDAT- 2013/03/12 06:00 MHDA- 2013/10/23 06:00 CRDT- 2013/03/12 06:00 PHST- 2012/12/15 00:00 [received] PHST- 2013/02/04 00:00 [revised] PHST- 2013/02/05 00:00 [accepted] PHST- 2013/03/12 06:00 [entrez] PHST- 2013/03/12 06:00 [pubmed] PHST- 2013/10/23 06:00 [medline] AID - S0891-4222(13)00066-8 [pii] AID - 10.1016/j.ridd.2013.02.008 [doi] PST - ppublish SO - Res Dev Disabil. 2013 May;34(5):1478-87. doi: 10.1016/j.ridd.2013.02.008. Epub 2013 Mar 5.