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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. 7, Iss. 2 — Feb. 1, 1990
  • pp: 305–311

Loci of spectral unique hues throughout the life span

Brooke E. Schefrin and John S. Werner  »View Author Affiliations


JOSA A, Vol. 7, Issue 2, pp. 305-311 (1990)
http://dx.doi.org/10.1364/JOSAA.7.000305


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Abstract

Spectral unique hues (blue, green, and yellow) were determined for 50 observers ranging in age from 13 to 74 years. Each unique hue was measured at three luminance levels (0.5-log-unit steps). There were no significant changes in the spectral locations of red–green equilibrium hues (unique blue and yellow) as a function of luminance level or age. In contrast, significant shifts in unique green loci occurred as a function of both age and luminance. Unique green loci shifted toward shorter wavelengths with age. These results are consistent with the hypothesis that with advancing age there is a parallel decline in the input of all three cone types to the red–green chromatic channel and either a selective decline in short-wave-sensitive cone input to the yellow–blue chromatic channel or a change in the way in which cone signals are combined within the yellow–blue channel.

© 1990 Optical Society of America

History
Original Manuscript: May 22, 1989
Manuscript Accepted: September 6, 1989
Published: February 1, 1990

Citation
Brooke E. Schefrin and John S. Werner, "Loci of spectral unique hues throughout the life span," J. Opt. Soc. Am. A 7, 305-311 (1990)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-7-2-305

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