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Neuron. 2012 Mar 22;73(6):1228-40. doi: 10.1016/j.neuron.2012.01.022. Epub 2012 Mar 21.

Human areas V3A and V6 compensate for self-induced planar visual motion.

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Vision and Cognition Lab, Centre of Integrative Neuroscience, University of Tübingen, 72076 Tübingen, Germany.


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 nonvisual 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.

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