Red-green color discrimination in peripheral vision.
Red-green color discrimination in peripheral vision.
复制标题
周边视觉中的红绿色辨别。
DOI：
10.1016/0042-6989(93)90161-o
复制
发表时间：
1993
期刊：
影响因子：
1.8
通讯作者：
Wolf,S
中科院分区：
文献类型：
--
作者：
Nagy,AL;Wolf,S
从可见光谱的红绿部分测量了四种颜色的颜色辨别阈值。在中心凹直径1.5°的刺激场和鼻侧视网膜的三个位置(偏心度分别为5、20和40°)测量阈值。在中心凹外，阈值随偏心率呈指数增加，四种标准颜色的函数斜率相似。外周阈值由Boynton和Kambe[(1980)颜色研究和应用，5，13-23]建立的中心凹红绿阈值方程以及包含杆项的该方程的修改形式充分描述。中心凹阈值和周边阈值之间的差异通过方程中两个系数的变化来表征。CIELUV色差方程也很好地描述了外周阈值。
Color discrimination thresholds were measured for four colors from the red-green portion of the visible spectrum. Thresholds were measured for a stimulus field 1.5 deg in diameter in the fovea and at three locations on the nasal retina (eccentricities of 5, 20 and 40 deg). Outside the fovea thresholds increased exponentially with eccentricity and the slope of the function was similar for all four standard colors. Peripheral thresholds were adequately described by an equation developed for foveal red-green thresholds by Boynton and Kambe [(1980)Color Research and Applications, 5, 13–23] and also by a modified form of this equation containing a rod term. Differences between foveal and peripheral thresholds were characterized by changes in two coefficients in the equations. The CIELUV color difference equation also provided a reasonably good description of peripheral thresholds.