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The relationship between peripherally matched invariant hues and unique hues: a cone-contrast approach |
JOSA A, Vol. 29, Issue 2, pp. A233-A239 (2012)
http://dx.doi.org/10.1364/JOSAA.29.00A233
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Abstract
A characteristic shift in hue and saturation occurs when colored targets are viewed peripherally compared with centrally. Four hues, one in each of the red, blue, green, and yellow regions of color space, remain unchanged when presented in the peripheral field. Apart from green, these peripherally invariant hues correspond almost exactly in color space with the unique hues. We explore this puzzling observation using asymmetric color-matching and color-naming experiments and computing cone contrasts for peripheral and central stimuli. We find that the difference between cone contrasts for the peripheral and central stimuli reaches a maximum at the chromatic axis corresponding to peripherally invariant green. We speculate that the effect is linked to a weakened signal from M-cones and probably associated with a reduced number of M-cones in peripheral retina.
© 2012 Optical Society of America
OCIS Codes
(330.1720) Vision, color, and visual optics : Color vision
(330.5310) Vision, color, and visual optics : Vision - photoreceptors
(330.5380) Vision, color, and visual optics : Physiology
(330.5510) Vision, color, and visual optics : Psychophysics
ToC Category:
Mesopic and peripheral color vision
History
Original Manuscript: September 13, 2011
Revised Manuscript: December 7, 2011
Manuscript Accepted: December 8, 2011
Published: January 26, 2012
Virtual Issues
Vol. 7, Iss. 4 Virtual Journal for Biomedical Optics
Citation
Athanasios Panorgias, Janus J. Kulikowski, Neil R. A. Parry, Declan J. McKeefry, and Ian J. Murray, "The relationship between peripherally matched invariant hues and unique hues: a cone-contrast approach," J. Opt. Soc. Am. A 29, A233-A239 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-2-A233
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