Summary: Neuron, Vol. 32, 351­358, October 25, 2001, Copyright 2001 by Cell Press
Neural Correlates of Chromatic Motion Perception
reported to exist between chromatic motion perceptionAlexander Thiele,2,5
Karen R. Dobkins,3
in human observers and the sensitivity of MT neuronsand Thomas D. Albright1,2,4
in nonhuman primates. Such differences have led to the1
Howard Hughes Medical Institute
hypothesis that neural activity in area MT is not sufficient2
Salk Institute for Biological Studies
to account for chromatic motion processing revealed10010 N. Torrey Pines Road
perceptually, and that other brain regions must contrib-La Jolla, California 92037
ute significantly to this phenomenon (Cavanagh and An-3
Department of Psychology
stis, 1991; Gegenfurtner et al., 1994; Hawken, et al.,University of California, San Diego
1994; Gegenfurtner and Hawken, 1995, 1996; StromeyerLa Jolla, California 92093
et al., 1995; Cropper and Derrington, 1996).
To address this issue directly, we assessed the sensi-
tivities of individual MT neurons and observers to theSummary
motion of chromatically defined stimuli in the same non-
human primates (rhesus monkeys). For this purpose,A variety of psychophysical and neurophysiological

Source: Albright, Tom - Vision Center Laboratory, Salk Institute for Biological Studies
Dobkins, Karen R. - Department of Psychology, University of California at San Diego
Thiele, Alexander - School of Biology and Psychology, University of Newcastle upon Tyne

Collections: Biology and Medicine