Laboratory of Physiology of Cognitive Processes
2012
  • Title:Human Areas V3A and V6 Compensate for Self-Induced Planar Visual Motion
  • Authors:E. Fischer; H. H. Bulthoff; N. K. Logothetis; A. Bartels
  • Title of Journal:Neuron
  • Year:2012
  • DOI:DOI 10.1016/j.neuron.2012.01.022
Abstract
Little is known about mechanisms mediating a stable perception of the world during pursuit eye movements. Here, we used fMRI to determine to what extent human motion-responsive areas integrate planar retinal motion with nonretinal eye movement signals in order to discard self-induced planar retinal motion and to respond to objective (real") motion. In contrast to other areas, V3A lacked responses to self-induced planar retinal motion but responded strongly to head-centered motion, even when retinally canceled by pursuit. This indicates a near-complete multimodal integration of visual with non-visual planar motion signals in V3A. V3A could be mapped selectively and robustly in every single subject on this basis. V6 also reported head-centered planar motion, even when 3D flow was added to it, but was suppressed by retinal planar motion. These findings suggest a dominant contribution of human areas V3A and V6 to head-centered motion perception and to perceptual stability during eye movements."