HapticV1, Main, Exploration, bibRecord, 002406

Functional synchronization in repetitive bimanual prehension movements.

Identifieur interne : 002406 ( Main/Exploration ); précédent : 002405; suivant : 002407

Functional synchronization in repetitive bimanual prehension movements.

Auteurs : Marianne I. Christel [Allemagne] ; Marc Jeannerod ; Peter H. Weiss

Source :

Experimental brain research [ 1432-1106 ] ; 2012.

RBID : pubmed:22227856

English descriptors

KwdEn :
- Adult, Biomechanical Phenomena (physiology), Female, Hand Strength (physiology), Humans, Male, Middle Aged, Movement (physiology), Psychomotor Performance (physiology).
MESH :
- physiology : Biomechanical Phenomena, Hand Strength, Movement, Psychomotor Performance.
- Adult, Female, Humans, Male, Middle Aged.

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.

DOI: 10.1007/s00221-011-2990-7
PubMed: 22227856

Affiliations:

Le document en format XML

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<author><name sortKey="Christel, Marianne I" sort="Christel, Marianne I" uniqKey="Christel M" first="Marianne I" last="Christel">Marianne I. Christel</name>
<affiliation wicri:level="3"><nlm:affiliation>Biologie, Humanbiologie, Freie Universität Berlin, Berlin, Germany. mchriste@zedat.fu-berlin.de</nlm:affiliation>
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<series><title level="j">Experimental brain research</title>
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<front><div type="abstract" xml:lang="en">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.</div>
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<country name="Allemagne"><region name="Berlin"><name sortKey="Christel, Marianne I" sort="Christel, Marianne I" uniqKey="Christel M" first="Marianne I" last="Christel">Marianne I. Christel</name>
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Serveur d'exploration sur les dispositifs haptiques

Functional synchronization in repetitive bimanual prehension movements.

Functional synchronization in repetitive bimanual prehension movements.

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

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