TY  - JOUR
AU  - Christel, M.I.
AU  - Jeannerod, M.
AU  - Weiss, P.H.
TI  - Functional synchronization in repetitive bimanual prehension movements
JO  - Experimental brain research
VL  - 217
SN  - 0014-4819
CY  - Berlin
PB  - Springer
M1  - PreJuSER-22824
SP  - 261 - 271
PY  - 2012
N1  - 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).
AB  - 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.
KW  - Adult
KW  - Biomechanics: physiology
KW  - Female
KW  - Hand Strength: physiology
KW  - Humans
KW  - Male
KW  - Middle Aged
KW  - Movement: physiology
KW  - Psychomotor Performance: physiology
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:22227856
UR  - <Go to ISI:>//WOS:000300580900009
DO  - DOI:10.1007/s00221-011-2990-7
UR  - https://juser.fz-juelich.de/record/22824
ER  -