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Diffusion tensor imaging metrics of the corpus callosum in relation to bimanual coordination: Effect of task complexity and sensory feedback
journal contribution
posted on 2013-01-01, 00:00 authored by J Gooijers, Karen CaeyenberghsKaren Caeyenberghs, H M Sisti, M Geurts, M H Heitger, A Leemans, S P SwinnenWhen manipulating objects with both hands, the corpus callosum (CC) is of paramount importance for interhemispheric information exchange. Hence, CC damage results in impaired bimanual performance. Here, healthy young adults performed a complex bimanual dial rotation task with or without augmented visual feedback and according to five interhand frequency ratios (1:1, 1:3, 2:3, 3:1, 3:2). The relation between bimanual task performance and microstructural properties of seven CC subregions (i.e., prefrontal, premotor/supplementary motor, primary motor, primary sensory, occipital, parietal, and temporal) was studied by means of diffusion tensor imaging (DTI). Findings revealed that bimanual coordination deteriorated in the absence as compared to the presence of augmented visual feedback. Simple frequency ratios (1:1) were performed better than the multifrequency ratios (non 1:1). Moreover, performance was more accurate when the preferred hand (1:3-2:3) as compared to the nonpreferred hand (3:1-3:2) moved faster and during noninteger (2:3-3:2) as compared to integer frequency ratios (1:3-3:1). DTI findings demonstrated that bimanual task performance in the absence of augmented visual feedback was significantly related to the microstructural properties of the primary motor and occipital region of the CC, suggesting that white matter microstructure is associated with the ability to perform bimanual coordination patterns in young adults. © 2011 Wiley Periodicals, Inc.
History
Journal
Human Brain MappingVolume
34Issue
1Pagination
241 - 252Publisher
WileyLocation
London, Eng.Publisher DOI
ISSN
1065-9471eISSN
1097-0193Language
engPublication classification
C1 Refereed article in a scholarly journalUsage metrics
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bimanual coordinationvisual feedbackcorpus callosumDTIfractional anisotropyScience & TechnologyLife Sciences & BiomedicineNeurosciencesNeuroimagingRadiology, Nuclear Medicine & Medical ImagingNeurosciences & NeurologyWHITE-MATTERCONSTRAINTSPERFORMANCEMOVEMENTSATLASINTERFERENCECONSTRUCTIONANISOTROPYMICROSTRUCTURECOREGISTRATION
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