Les aires prémotrices - Neurosciences-comportement

Les aires prémotrices
Avant les années 2000 :
•aire motrice supplémentaire ;
•cortex pré-moteur.
Aujourd’hui, au moins 7 aires différentes, mais pas de consensus…
•2 aires motrices supplémentaires (AMS et pré-AMS) ;
•2 aires prémotrices (dorsale et ventrale) ;
•3 aires motrices cingulaires.

Average event-related potential (ERP) amplitude across all
electrodes as a function of time and group.
Rigoni D et al. Psychological Science 2011;22:613-618
Copyright © by Association for Psychological Science
Thegrayareaindicatesthetime
range during which the two
groups started to differ
significantly and the late
readiness potential began. The
redandthebluecirclesinthe
ERP signals indicate the average
times at which the intention to
respond occurred in the two
groups. The topographical maps
beneath the graph show the
difference between the two
groups in pre-movement brain
activity.
Potentiel de préparation motrice

Set related neurons
Les aires prémotrices

Les neurones des aires prémotrices

Les neurones des aires prémotrices