Grasping an Object: One Movement, Several Components

  1. Gregory R. Bock organizer and
  2. Jamie A. Goode
  1. M. Jeannerod1,
  2. Y. Paulignan2 and
  3. P. Weiss3

Published Online: 28 SEP 2007

DOI: 10.1002/9780470515563.ch2

Novartis Foundation Symposium 218 - Sensory Guidance of Movement

Novartis Foundation Symposium 218 - Sensory Guidance of Movement

How to Cite

Jeannerod, M., Paulignan, Y. and Weiss, P. (2007) Grasping an Object: One Movement, Several Components, in Novartis Foundation Symposium 218 - Sensory Guidance of Movement (eds G. R. Bock and J. A. Goode), John Wiley & Sons, Ltd., Chichester, UK. doi: 10.1002/9780470515563.ch2

Author Information

  1. 1

    Institut des Sciences Cognitives, 67 Boulevard Pinel, F-69500 Bron, France

  2. 2

    Vision et Mortricité, INSERM U94, F-69500 Bron, France

  3. 3

    Department of Neurology, Heinrich Heine Universität, Düsseldolf, Germany

Publication History

  1. Published Online: 28 SEP 2007

ISBN Information

Print ISBN: 9780471982623

Online ISBN: 9780470515563

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Keywords:

  • visuomotor transformations;
  • biomechanical constraints;
  • appropriate opposition space;
  • covariation;
  • planning modes

Summary

The visuomotor transformations for producing a grasping movement imply simultaneous control of different visual mechanisms. The object size, orientation and 3D characteristics have to be encoded for the selection of the appropriate opposition space, within which the opposition forces will be applied on the object surface. These mechanisms also have to combine with those of the transport of the hand to the object location. Finally, biomechanical constraints impose categorical visuomotor decisions for positioning the opposition space according to object changes in size, orientation and spatial location. This paper examines possible interactions between the specialized structures for visuomotor transformation and the internal model that adapts prehension to its goals.