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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: A293–A302

Non-cardinal color mechanism strength differs across color planes but not across subjects

Karen L. Gunther  »View Author Affiliations


JOSA A, Vol. 31, Issue 4, pp. A293-A302 (2014)
http://dx.doi.org/10.1364/JOSAA.31.00A293


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Abstract

This study tested two hypotheses: (1) that non-cardinal color mechanisms may be due to individual differences: some subjects have them (or have stronger ones), while other subjects do not; and (2) that non-cardinal mechanisms may be stronger in the isoluminant plane of color space than in the two planes with luminance. Five to six subjects per color plane were tested on three psychophysical paradigms: adaptation, noise masking, and plaid coherence. There were no consistent individual differences in non-cardinal mechanism strength across the three paradigms. In group-averaged data, non-cardinal mechanisms appear to be weaker in the two planes with luminance than in the isoluminant plane.

© 2014 Optical Society of America

OCIS Codes
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.1720) Vision, color, and visual optics : Color vision
(330.5510) Vision, color, and visual optics : Psychophysics
(330.7320) Vision, color, and visual optics : Vision adaptation

ToC Category:
Color sensitivity and appearance

History
Original Manuscript: September 5, 2013
Revised Manuscript: December 20, 2013
Manuscript Accepted: January 13, 2014
Published: February 25, 2014

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

Citation
Karen L. Gunther, "Non-cardinal color mechanism strength differs across color planes but not across subjects," J. Opt. Soc. Am. A 31, A293-A302 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-4-A293

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