version française rss feed
HAL : hal-00654886, version 1

Fiche concise  Récupérer au format
Grasping an object: one movement, several components.
Jeannerod M., Paulignan Y., Weiss P.
Novartis Foundation symposium 218 (1998) 5-16; discussion 16-20 - http://hal.archives-ouvertes.fr/hal-00654886
Sciences cognitives/Neurosciences
Grasping an object: one movement, several components.
M. Jeannerod1, Y. Paulignan1, P. Weiss2
1 :  L2C2 - Laboratoire sur le langage, le cerveau et la cognition
Université Claude Bernard - Lyon I (UCBL) – CNRS : UMR5230
Institut des Sciences cognitives 67 bd Pinel 69675 Bron cedex
2 :  CPPM - Centre de Physique des Particules de Marseille
CNRS : UMR7346 – IN2P3 – Université de la Méditerranée - Aix-Marseille II
163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09
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.

Novartis Foundation symposium (Novartis Found Symp)
ISSN 1528-2511 
Articles dans des revues avec comité de lecture
5-16; discussion 16-20