Chromatic contrast sensitivity: the role of absolute threshold and gain constant in differences between the fovea and the periphery
JOSA A, Vol. 17, Issue 2, pp. 232-243 (2000)
http://dx.doi.org/10.1364/JOSAA.17.000232
Acrobat PDF (184 KB)
Abstract
A model of foveal achromatic and chromatic sensitivity [Vision Res. 36, 1597 (1996)] was extended to the peripheral visual field. Threshold-versus-illuminance functions were analyzed to determine effects of eccentricity on absolute thresholds and gain constants of chromatic and luminance mechanisms. The resulting peripheral model successfully predicted peripheral contrast sensitivity as a function of wavelength, for both white and 500-nm backgrounds. We conclude that the short-wavelength-sensitive cone opponent mechanism may mediate thresholds in Sloan’s notch in the normal periphery and that interpretation of reduced chromatic sensitivity in the periphery requires an explicit model of how eccentricity affects both the gain constant and the absolute threshold.
© 2000 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
(330.1800) Vision, color, and visual optics : Vision - contrast sensitivity
(330.4060) Vision, color, and visual optics : Vision modeling
(330.4300) Vision, color, and visual optics : Vision system - noninvasive assessment
Citation
Pauline M. Pearson and William H. Swanson, "Chromatic contrast sensitivity: the role of absolute threshold and gain constant in differences between the fovea and the periphery," J. Opt. Soc. Am. A 17, 232-243 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-2-232
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Relational color constancy in achromatic and isoluminant images (JOSAA)
- Aging and the saturation of colors. 1. Colorimetric purity discrimination (JOSAA)
- Identification of illuminant and object colors: heuristic-based algorithms (JOSAA)
- Cost of cone coupling to trichromacy in primate fovea (JOSAA)
- Effective contrast of colored stimuli in the mesopic range: a metric for perceived contrast based on achromatic luminance contrast (JOSAA)
Related Conference Papers
- Fiber Optic Full Color Synthesizer
- Comparison of Farnsworth and Kinnear method of plotting the Farnsworth Munsell 100-Hue test scores
- Evaluation of two color filters used to simulate congenital color deficiency.
- Simulating polychromatic retinal images
- Measurement of wavefront aberrations of human eyes using a 2-dimensional grating and Fourier analysis
« Previous Article | Next Article »
OSA is a member of 