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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: Stephen A. Burns
  • Vol. 26, Iss. 5 — May. 1, 2009
  • pp: 1167–1177

Chromatic perceptive field sizes measured at 10° eccentricity along the horizontal and vertical meridians

Vicki J. Volbrecht, Cynthia L. Clark, Janice L. Nerger, and Chrislyn E. Randell  »View Author Affiliations


JOSA A, Vol. 26, Issue 5, pp. 1167-1177 (2009)
http://dx.doi.org/10.1364/JOSAA.26.001167


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Abstract

The different hemifields in the retina are known to vary in photoreceptor density as well as in the number of photoreceptors converging onto one ganglion cell. The effect of these differences among the retinal hemifields at 10° retinal eccentricity was investigated using a color-naming procedure to derive perceptive field sizes for the hue terms of blue, green, yellow, and red. Color-naming data were obtained under two conditions: (1) after a bleach condition, chosen to minimize rod contribution, and (2) after 30 min dark adaptation, chosen to maximize rod contribution. Perceptive field sizes measured in the bleach condition were consistent with degree of neural convergence of cones to ganglion cells across the retina rather than differences in cone density. Rod densities relative to cone densities correlated with the size of perceptive fields in the no-bleach condition, i.e., the greater the rod:cone ratio, the larger the perceptive field.

© 2009 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

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: October 10, 2008
Revised Manuscript: February 3, 2009
Manuscript Accepted: March 14, 2009
Published: April 10, 2009

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

Citation
Vicki J. Volbrecht, Cynthia L. Clark, Janice L. Nerger, and Chrislyn E. Randell, "Chromatic perceptive field sizes measured at 10° eccentricity along the horizontal and vertical meridians," J. Opt. Soc. Am. A 26, 1167-1177 (2009)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-26-5-1167

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