Contrast adaptation reveals increased organizational complexity of chromatic processing in the visual evoked potential

被引：8

作者：

Duncan, Chad S. ^{[1
]}

Roth, Eric J. ^{[1
]}

Mizokami, Yoko ^{[2
]}

McDermott, Kyle C. ^{[1
]}

Crognale, Michael A. ^{[1
]}

机构：

[1] Univ Nevada, Dept Psychol, Reno, NV 89557 USA

[2] Chiba Univ, Grad Sch Adv Integrat Sci, Inage Ku, Chiba 2638522, Japan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2012年 / 29卷 / 02期

关键词：

COLOR DISCRIMINATION; LUMINANCE CONTRAST; STRIATE CORTEX; VEP; SELECTIVITY; MECHANISMS; RESPONSES; STIMULI; REPRESENTATION; GLAUCOMA;

D O I：

10.1364/JOSAA.29.00A152

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Results from psychophysics and single-unit recordings suggest that color vision comprises multiple stages of processing. Postreceptoral channels appear to consist of both a stage of broadly tuned opponent channels that compare cone signals and a subsequent stage, which includes cells tuned to many different directions in color space. The chromatic visual evoked potential (crVEP) has demonstrated chromatic processing selective for cardinal axes of color space. However, crVEP evidence for higher-order color mechanisms is lacking. The present study aimed to assess the contribution of lower- and higher-order color mechanisms to the crVEP by using chromatic contrast adaptation. The results reveal the presence of mechanisms tuned to intermediate directions in color space in addition to those tuned to the fundamental cardinal axes. (c) 2012 Optical Society of America

引用

页码：A152 / A156

页数：5

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