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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: A375–A384

Variation of color discrimination across the life span

Galina V. Paramei and Beata Oakley  »View Author Affiliations


JOSA A, Vol. 31, Issue 4, pp. A375-A384 (2014)
http://dx.doi.org/10.1364/JOSAA.31.00A375


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Abstract

The present study, an extension of Paramei [J. Opt. Soc. Am. A, 29, A290, 2012], provides normative data on chromatic discrimination, using the Cambridge Colour Test, for normal trichromats aged 10–88 years. Findings are in accord with a two-phase variation across the life span: chromatic sensitivity improves in adolescence, reaches a maximum around 30 years, and then undergoes a gradual decrease. Indicative parameters are Protan (P), Deutan (D), and Tritan (T) vector lengths and major axes and axis ratios of Ellipses. Trivector data are modeled as non-monotonic combinations of power functions, with goodness-of-fits RP2=0.23, RD2=0.23, and RT2=0.45. For advancing age, sensitivity decline in all chromatic systems was confirmed, though with a marked acceleration after 60 years (reflected by the power function exponent >1) and more pronounced for the tritan system.

© 2014 Optical Society of America

OCIS Codes
(330.1690) Vision, color, and visual optics : Color
(330.1720) Vision, color, and visual optics : Color vision
(330.4300) Vision, color, and visual optics : Vision system - noninvasive assessment
(330.5020) Vision, color, and visual optics : Perception psychology
(330.5510) Vision, color, and visual optics : Psychophysics
(330.7323) Vision, color, and visual optics : Visual optics, aging changes

ToC Category:
Chromatic discrimination

History
Original Manuscript: October 7, 2013
Revised Manuscript: January 2, 2014
Manuscript Accepted: January 4, 2014
Published: March 6, 2014

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

Citation
Galina V. Paramei and Beata Oakley, "Variation of color discrimination across the life span," J. Opt. Soc. Am. A 31, A375-A384 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-4-A375

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