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The Journal of Neuroscience, October 31, 2007, 27(44):11820-11831; doi:10.1523/JNEUROSCI.4164-07.2007

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Symposia and Mini-Symposia
Disparity Channels in Early Vision

Anna W. Roe,¹ Andrew J. Parker,² Richard T. Born,³ and Gregory C. DeAngelis⁴

¹Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, ²Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford OX1 3PT, United Kingdom, ³Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115, and ⁴Brain and Cognitive Sciences, University of Rochester, Rochester, New York 14627

Correspondence should be addressed to Anna W. Roe, Department of Psychology, 301 Wilson Hall, Vanderbilt University, 111 21st Avenue South, Nashville, TN 37203. Email: anna.roe{at}vanderbilt.edu

The past decade has seen a dramatic increase in our knowledge of the neural basis of stereopsis. New cortical areas have been found to represent binocular disparities, new representations of disparity information (e.g., relative disparity signals) have been uncovered, the first topographic maps of disparity have been measured, and the first causal links between neural activity and depth perception have been established. Equally exciting is the finding that training and experience affects how signals are channeled through different brain areas, a flexibility that may be crucial for learning, plasticity, and recovery of function. The collective efforts of several laboratories have established stereo vision as one of the most productive model systems for elucidating the neural basis of perception. Much remains to be learned about how the disparity signals that are initially encoded in primary visual cortex are routed to and processed by extrastriate areas to mediate the diverse capacities of three-dimensional vision that enhance our daily experience of the world.

Key words: stereopsis; binocular disparity; MT primate; topography; choice probability

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Received Sept. 11, 2007; revised Sept. 21, 2007; accepted Sept. 22, 2007.

Correspondence should be addressed to Anna W. Roe, Department of Psychology, 301 Wilson Hall, Vanderbilt University, 111 21st Avenue South, Nashville, TN 37203. Email: anna.roe{at}vanderbilt.edu

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