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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 31, Iss. 4 — Apr. 1, 2014
  • pp: A60–A64

Do S cones contribute to color-motion feature binding?

Wei Wang and Steven K. Shevell  »View Author Affiliations


JOSA A, Vol. 31, Issue 4, pp. A60-A64 (2014)
http://dx.doi.org/10.1364/JOSAA.31.000A60


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Abstract

Wu et al. [Nature 429, 262 (2004)] describe a visual illusion in which color and motion are incorrectly bound: green dots moving downward and red dots moving upward are seen as green dots going up and red dots going down. The present study determined whether S cones contribute to color-motion feature-binding errors, in order to assess the neural representation of color at the level of binding. The specific experimental question is whether binding errors depend on S-cone responses from the objects perceived to have an illusory direction of motion. Alternatively, only L and M cones may determine the neural representation of color that regulates color-motion feature binding. In two experiments, the chromatic difference was manipulated between central objects, which induce color-motion binding errors, and peripheral objects, where color-motion binding errors occur. The chromaticity difference was varied along only the L/M-cone axis or only the S-cone axis. As in Wu et al. [Nature 429, 262 (2004)], color-motion binding was frequently observed in the periphery when there were no central versus peripheral chromatic differences. Further, the results showed that the frequency of color-motion binding errors in the periphery depended on the difference in S-cone excitation between center and periphery, thereby demonstrating that the neural representation of color at the level of feature binding depends on signals from not only L and M cones but also S cones.

© 2014 Optical Society of America

OCIS Codes
(330.1720) Vision, color, and visual optics : Color vision
(330.5510) Vision, color, and visual optics : Psychophysics

ToC Category:
Color sensitivity and appearance

History
Original Manuscript: October 31, 2013
Revised Manuscript: December 11, 2013
Manuscript Accepted: December 12, 2013
Published: January 15, 2014

Virtual Issues
Vol. 9, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Wei Wang and Steven K. Shevell, "Do S cones contribute to color-motion feature binding?," J. Opt. Soc. Am. A 31, A60-A64 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-4-A60

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