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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: Steven A. Burns
  • Vol. 24, Iss. 9 — Sep. 1, 2007
  • pp: 2604–2621

Theory of chromatic noise masking applied to testing linearity of S-cone detection mechanisms

Franco Giulianini and Rhea T. Eskew, Jr.  »View Author Affiliations


JOSA A, Vol. 24, Issue 9, pp. 2604-2621 (2007)
http://dx.doi.org/10.1364/JOSAA.24.002604


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Abstract

A method for testing the linearity of cone combination of chromatic detection mechanisms is applied to S-cone detection. This approach uses the concept of mechanism noise, the noise as seen by a postreceptoral neural mechanism, to represent the effects of superposing chromatic noise components in elevating thresholds and leads to a parameter-free prediction for a linear mechanism. The method also provides a test for the presence of multiple linear detectors and off-axis looking. No evidence for multiple linear mechanisms was found when using either S-cone increment or decrement tests. The results for both S-cone test polarities demonstrate that these mechanisms combine their cone inputs nonlinearly.

© 2007 Optical Society of America

OCIS Codes
(330.1720) Vision, color, and visual optics : Color vision
(330.4060) Vision, color, and visual optics : Vision modeling
(330.5510) Vision, color, and visual optics : Psychophysics

ToC Category:
Vision, color, and visual optics

History
Original Manuscript: July 28, 2006
Revised Manuscript: April 5, 2007
Manuscript Accepted: April 7, 2007
Published: July 25, 2007

Virtual Issues
Vol. 2, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Franco Giulianini and Rhea T. Eskew, Jr., "Theory of chromatic noise masking applied to testing linearity of S-cone detection mechanisms," J. Opt. Soc. Am. A 24, 2604-2621 (2007)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-9-2604

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