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Assistant professor Bas Rokers and his group in the Department of Psychology study how the brain processes visual motion, particularly motion in three dimensions.

This image illustrates the location of six major white matter pathways in the visual system that are critical for motion perception. Each colored bundle of fibers represents a different pathway generated by a non-invasive MRI-based method called probabilistic diffusion-weighted tractography: lateral geniculate nucleus (LGN) to primary visual cortex (V1) in yellow; V1 to the motion-sensitive region (MT+) of cortex in green; LGN directly to MT+ in blue; pulvinar to MT+ in purple; left to rightV 1 in orange; and left to right MT+ in red. Differences in these pathways may account for striking differences in people’s ability to perceive motion.

Bas Rokers July 2014 Lab Picture Brain
IMAGE COURTESY OF BRIAN ALLEN, ROKERS LAB