Journal Article

PreJuSER-22824

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Functional synchronization in repetitive bimanual prehension movements

Christel, M. I. ; Jeannerod, M. ; Weiss, P. H.FZJ*

2012
Springer Berlin

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Please use a persistent id in citations: doi:10.1007/s00221-011-2990-7

Abstract: To examine the mechanisms of functional bimanual synchronization in goal-directed movements, we studied the movement kinematics of motorically unimpaired subjects while they performed repetitive prehension movements (either unimanually or bimanually) to small food items. Compared to unimanual conditions, bimanual movement execution yielded a significantly prolonged mouth contact phase. We hypothesized that this threefold prolongation led to a proper functional synchronization of the movement onsets of both hands at the beginning of each new movement cycle. That these temporal adjustments occurred in the movement phase with maximal haptic input points to the importance of sensory feedback for bimanual coordination. These results are discussed with respect to the important role of sensory feedback in the timing of coordinated bimanual movements. Furthermore, we propose that time-based coordinating schemas, which are implemented by the cerebellum and the posterior parietal cortex using sensory feedback, underlie functional inter-limb coordination.

Keyword(s): Adult (MeSH) ; Biomechanics: physiology (MeSH) ; Female (MeSH) ; Hand Strength: physiology (MeSH) ; Humans (MeSH) ; Male (MeSH) ; Middle Aged (MeSH) ; Movement: physiology (MeSH) ; Psychomotor Performance: physiology (MeSH) ; J ; Bimanual coordination (auto) ; Functional synchronization (auto) ; Prehension movements (auto) ; Sensory feedback (auto) ; Cerebellum (auto) ; Parietal cortex (auto)

Note: The authors wish to thank the subjects for their participation and Yves Paulignan for expert technical assistance. We thank the anonymous reviewers for their valuable comments on the previous versions of the manuscript. This project was supported by the Deutsche Forschungsgemeinschaft (DFG Ch 149/4-1) and by a grant of the Freie Universitat of Berlin (KFN) to MIC).

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Contributing Institute(s):

1. Kognitive Neurowissenschaften (INM-3)

Research Program(s):

1. Funktion und Dysfunktion des Nervensystems (FUEK409) (FUEK409)
2. 89572 - (Dys-)function and Plasticity (POF2-89572) (POF2-89572)

Appears in the scientific report 2012

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Database coverage:
; BIOSIS Previews ; Current Contents - Life Sciences ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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