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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

  • Vol. 17, Iss. 9 — Sep. 1, 2000
  • pp: 1535–1544

Variations in normal color vision. I. Cone-opponent axes

Michael A. Webster, Eriko Miyahara, Gokhan Malkoc, and Vincent E. Raker  »View Author Affiliations


JOSA A, Vol. 17, Issue 9, pp. 1535-1544 (2000)
http://dx.doi.org/10.1364/JOSAA.17.001535


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Abstract

Early postreceptoral color vision is thought to be organized in terms of two principal axes corresponding to opposing L- and M-cone signals (LvsM) or to S-cone signals opposed by a combination of L- and M-cone signals (SvsLM). These cone-opponent axes are now widely used in studies of color vision, but in most cases the corresponding stimulus variations are defined only theoretically, based on a standard observer. We examined the range and implications of interobserver variations in the cone-opponent axes. We used chromatic adaptation to empirically define the LvsM and SvsLM axes and used both thresholds and color contrast adaptation to determine sensitivity to the axes. We also examined the axis variations implied by individual differences in the color matching data of Stiles and Burch [Opt. Acta 6, 1 (1959)]. The axes estimated for individuals can differ measurably from the nominal standard-observer axes and can influence the interpretation of postreceptoral color organization (e.g., regarding interactions between the two axes). Thus, like luminance sensitivity, individual differences in chromatic sensitivity may be important to consider in studies of the cone-opponent axes.

© 2000 Optical Society of America

OCIS Codes
(330.1690) Vision, color, and visual optics : Color
(330.1720) Vision, color, and visual optics : Color vision
(330.1730) Vision, color, and visual optics : Colorimetry
(330.5020) Vision, color, and visual optics : Perception psychology
(330.7310) Vision, color, and visual optics : Vision

History
Original Manuscript: October 14, 1999
Revised Manuscript: May 17, 2000
Manuscript Accepted: May 17, 2000
Published: September 1, 2000

Citation
Michael A. Webster, Eriko Miyahara, Gokhan Malkoc, and Vincent E. Raker, "Variations in normal color vision. I. Cone-opponent axes," J. Opt. Soc. Am. A 17, 1535-1544 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-9-1535

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