Title: Conceptual Binding: Integrated Visual Cues Reduce Processing Costs in Bimanual Movements
Authors: Wenderoth, Nicole ×
van Dooren, M
Vandebroek, A
De Vos, Jeroen
Vangheluwe, S
Stinear, C. M
Byblow, W. D
Swinnen, Stephan #
Issue Date: Jul-2009
Publisher: Amer physiological soc
Series Title: Journal of neurophysiology vol:102 issue:1 pages:302-311
Abstract: Wenderoth N, Van Dooren M, Vandebroek A, De Vos J, Vangheluwe S, Stinear CM, Byblow WD, Swinnen SP. Conceptual binding: integrated visual cues reduce processing costs in bimanual movements. J Neurophysiol 102: 302-311, 2009. First published April 15, 2009; doi:10.1152/jn.91090.2008. In discrete reaction time (RT) tasks, it has been shown that nonsymmetric bimanual movements are initiated slower than symmetric movements in response to symbolic cues. By contrast, no such RT differences are found in response to direct cues ("direct cue effect"). Here, we report three experiments showing that the direct cue effect generalizes to rhythmical bimanual movements and that RT cost depends on different cue features: 1) symbolic versus direct or 2) integrated (i.e., action of both hands is indicated as one entity) versus dissociated (i.e., action of each hand is indicated separately). Our main finding was that dissociated symbolic cues were most likely processed serially, resulting in the longest RTs, which were substantially reduced with integrated symbolic cues. However, extra RT costs for switching to nonsymmetrical bimanual movements were overcome only when the integrated cues were direct. We conclude that computational resources might have been exceeded when the response needs to be determined for each hand separately, but not when a common response for both hands is selected. This supports the idea that bimanual control benefits from conceptual binding.
ISSN: 0022-3077
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Movement Control & Neuroplasticity Research Group
Research Group for Cardiovascular and Respiratory Rehabilitation
× corresponding author
# (joint) last author

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