Wehrhahn, C Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Westheimer, G., & Wehrhahn, C. (1994). Discrimination of direction of motion in human vision. Journal of Neurophysiology, 71(1), 33-37. Retrieved from http://jn.physiology.org/content/71/1/33.abstract.