Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Artifacts in spatiochromatic stimuli due to variations in preretinal absorption and axial chromatic aberration: implications for color physiology

Not Accessible

Your library or personal account may give you access

Abstract

The spatiochromatic receptive-field structure of neurons in the macaque visual system has been studied almost exclusively with stimuli based on the human foveal cone fundamentals of Smith and Pokorny [Vision Res. 15, 161 (1975)] and generated on cathode ray tube displays. In the current study the artifacts evoked by cone-isolating, spatially structured stimuli due to variations in the eye’s preretinal absorption characteristics and axial chromatic aberration are quantified. In addition, the luminance artifacts evoked by nominally isoluminant sinusoidal grating stimuli due to the same factors are quantified. The results indicate that the spatiochromatic stimuli commonly employed to map receptive fields of neurons at eccentricities >10 deg are especially prone to artifacts and that these artifacts are maximal for the high-contrast S-cone-isolating stimuli that are often used. On the basis of these simulations, a method is introduced that improves spatiochromatic receptive-field estimates by compensating for response contributions from the incompletely silenced cone mosaics during cone-isolating stimulation.

© 2003 Optical Society of America

Full Article  |  PDF Article
More Like This
Comparison of red–green equiluminance points in humans and macaques: evidence for different L:M cone ratios between species

Karen R. Dobkins, Alex Thiele, and Thomas D. Albright
J. Opt. Soc. Am. A 17(3) 545-556 (2000)

Blur tolerance for luminance and chromatic stimuli

Sophie M. Wuerger, Huw Owens, and Steve Westland
J. Opt. Soc. Am. A 18(6) 1231-1239 (2001)

Senescence of spatial chromatic contrast sensitivity. I. Detection under conditions controlling for optical factors

Joseph L. Hardy, Peter B. Delahunt, Katsunori Okajima, and John S. Werner
J. Opt. Soc. Am. A 22(1) 49-59 (2005)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (15)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (39)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved