Zenon, Alexandre
[UCL]
Krauzlis, Rich
Notre système visuel dispose d’une capacité limitée de traitement de l’information et, pour être efficace, il doit donc allouer ses ressources en priorité aux éléments les plus importants de l’environnement. Les principaux centres nerveux qui contrôlent ce mécanisme d’allocation, appelé attention visuelle, ont été localisés au sein du cortex cérébral. Dans cette revue, nous décrivons l’existence d’un autre centre de contrôle attentionnel, situé au sein du tronc cérébral, à savoir le colliculus supérieur (CS). Celui-ci exercerait son influence sur les processus de sélection visuelle en court-circuitant le cortex visuel. La nature exacte des circuits impliqués reste inconnue, mais il est probable que la boucle que forme le CS avec les noyaux gris centraux représente un acteur majeur.
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Bibliographic reference |
Zenon, Alexandre ; Krauzlis, Rich. Le colliculus supérieur : Centre sous-cortical de la sélection visuelle. In: M/S : médecine sciences, Vol. 30, no. 6-7, p. 637-643 (2014) |
Permanent URL |
http://hdl.handle.net/2078.1/155088 |