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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. 29, Iss. 2 — Feb. 1, 2012
  • pp: A216–A222

Effect of luminosity on color discrimination of dichromatic marmosets (Callithrix jacchus)

Fabio Batista Freitag and Daniel Marques Almeida Pessoa  »View Author Affiliations


JOSA A, Vol. 29, Issue 2, pp. A216-A222 (2012)
http://dx.doi.org/10.1364/JOSAA.29.00A216


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Abstract

Psychophysical data have shown that under mesopic conditions cones and rods can interact, improving color vision. Since electrophysiological data have suggested that rods of dichromatic marmosets appear to be active at higher luminance, we aimed to investigate the effect of different levels of sunlight on the foraging abilities of male dichromatic marmosets. Captive marmosets were observed under three different conditions, with respect to their performance in detecting colored food items against a green background. Compared to high and low light intensities, intermediate luminosities significantly increased detection of orange targets by male dichromats, an indication of rod intrusion.

© 2012 Optical Society of America

OCIS Codes
(330.1690) Vision, color, and visual optics : Color
(330.1720) Vision, color, and visual optics : Color vision
(330.1880) Vision, color, and visual optics : Detection
(330.5020) Vision, color, and visual optics : Perception psychology
(330.5310) Vision, color, and visual optics : Vision - photoreceptors
(330.6180) Vision, color, and visual optics : Spectral discrimination

ToC Category:
Retinal and cortical color processing

History
Original Manuscript: September 1, 2011
Revised Manuscript: December 1, 2011
Manuscript Accepted: December 2, 2011
Published: January 26, 2012

Virtual Issues
Vol. 7, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Fabio Batista Freitag and Daniel Marques Almeida Pessoa, "Effect of luminosity on color discrimination of dichromatic marmosets (Callithrix jacchus)," J. Opt. Soc. Am. A 29, A216-A222 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-2-A216

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