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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: A65–A74

S-cone discrimination in the presence of two adapting fields: data and model

Dingcai Cao  »View Author Affiliations


JOSA A, Vol. 31, Issue 4, pp. A65-A74 (2014)
http://dx.doi.org/10.1364/JOSAA.31.000A65


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Abstract

This study investigated S-cone discrimination using a test annulus surrounded by an inner and outer adapting field with systematic manipulation of the adapting l = L / ( L + M ) or s = S / ( L + M ) chromaticities. The results showed that different adapting l chromaticities altered S-cone discrimination for a high adapting s chromaticity due to parvocellular input to the koniocellular pathway. In addition, S-cone discrimination was determined by the combined spectral signals arising from both adapting fields. The “white” adapting field or an adapting field with a different l chromaticity from the other fields was more likely to have a stronger influence on discrimination thresholds. These results indicated that the two cardinal axes are not independent in S-cone discrimination, and the two adapting fields jointly contribute to S-cone discrimination through a cortical summation mechanism.

© 2014 Optical Society of America

OCIS Codes
(330.1720) Vision, color, and visual optics : Color vision
(330.4060) Vision, color, and visual optics : Vision modeling
(330.5510) Vision, color, and visual optics : Psychophysics
(330.7320) Vision, color, and visual optics : Vision adaptation

ToC Category:
Chromatic discrimination

History
Original Manuscript: October 3, 2013
Revised Manuscript: November 25, 2013
Manuscript Accepted: December 4, 2013
Published: January 15, 2014

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

Citation
Dingcai Cao, "S-cone discrimination in the presence of two adapting fields: data and model," J. Opt. Soc. Am. A 31, A65-A74 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-4-A65

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