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Related Experiment Videos

Intermanual coordination: from behavioural principles to neural-network interactions.

Stephan P Swinnen1

  • 1Motor Control Laboratory, Department of Kinesiology, Katholieke Universiteit Leuven, Tervuurse Vest 101, 3001 Leuven, Belgium. Stephan.Swinnen@flok.kuleuven.ac.be

Nature Reviews. Neuroscience
|May 4, 2002
PubMed
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Neural networks, not a single brain area, control upper limb coordination. This distributed system explains movement disorders and diverse bimanual functions in humans.

Area of Science:

  • Neuroscience
  • Biomechanics
  • Evolutionary Biology

Background:

  • Interlimb coordination is a classic research area, particularly in locomotion.
  • Human upright stance and gait introduced complex upper limb interactions.
  • Previous research often localized bimanual coordination to single brain regions.

Purpose of the Study:

  • To investigate the neural underpinnings of bimanual interactions.
  • To explore the evolution of coordinated upper limb functions.
  • To understand the neural basis of context-specific bimanual tasks.

Main Methods:

  • Analysis of neuronal assemblies.
  • Investigation at the single-cell level.
  • Examination of neural synchronization and desynchronization.

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Main Results:

  • Bimanual coordination is governed by a distributed neural network.
  • Neural synchronization and desynchronization are key processes.
  • Evidence challenges the single-brain-locus viewpoint.

Conclusions:

  • A distributed network, rather than a single locus, controls bimanual coordination.
  • This network's distributed nature explains coordination disruptions in movement disorders.
  • Understanding this network is crucial for diverse coordinated functions.