Binocular Receptive Field Models, Disparity Tuning, and Characteristic Disparity

Binocular Receptive Field Models, Disparity Tuning, and Characteristic Disparity

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by Yu-Dong Zhu , Ning Qian , Dr. Ning Qian

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Datum	Value	Source
TITLE	Binocular Receptive Field Models, Disparity Tuning, and Characteristic Disparity	user correction - Legacy Corrections
AUTHOR NAME	Yu-Dong Zhu	user correction - Legacy Corrections
AUTHOR AFFIL	Center for Neurobiology and Behavior; Columbia University	user correction - Legacy Corrections
AUTHOR ADDR	New York, NY 10032	user correction - Legacy Corrections
AUTHOR NAME	Ning Qian	user correction - Legacy Corrections
AUTHOR AFFIL	Center for Neurobiology and Behavior; Columbia University	user correction - Legacy Corrections
AUTHOR ADDR	New York, NY 10032	user correction - Legacy Corrections
AUTHOR NAME	Dr. Ning Qian	user correction - Legacy Corrections
AUTHOR AFFIL	Center for Neurobiology and Behavior; Columbia University	user correction - Legacy Corrections
AUTHOR ADDR	722 W. 168th Street; New York, NY 10032	user correction - Legacy Corrections
ABSTRACT	Disparity tuning of visual cells in the brain depends on the structure of their binocular receptive fields (RFs). Freeman and coworkers have found that binocular RFs of a typical simple cell can be quantitatively described by two Gabor functions with the same Gaussian envelope but different phase parameters in the sinusoidal modulations (Freeman and Ohzawa, 1990). This phase-parameter based RF description, however, has recently been questioned by Wagner and Frost (1993) based on their identification of a so-called characteristic disparity (CD) in some cells' disparity tuning curves. They concluded that their data favor the traditional binocular RF model which assumes an overall positional shift between a cell's left and right RFs. Here we set to resolve this issue by studying the dependence of cells' disparity tuning on their underlying RF structures through mathematical analyses and computer simulations. We model the disparity tuning curves in Wagner and Frost's experiments and demons...	user correction - Legacy Corrections
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