Nerger J L, Volbrecht V J, Ayde C J
Department of Psychology, Colorado State University, Fort Collins 80523, USA.
J Opt Soc Am A Opt Image Sci Vis. 1995 Jun;12(6):1225-32. doi: 10.1364/josaa.12.001225.
Unique hue loci were measured for four observers in the fovea and at 20-deg temporal eccentricity as a function of test size. Eccentric measurements were made on the cone plateau following a rod bleach. The results indicate that unique yellow remains approximately invariant with respect to test size and retinal eccentricity, whereas unique blue and unique green shift to longer wavelengths with increasing test size. The locus of unique blue in the periphery reaches an asymptote at approximately the same wavelength as that from the foveal measurements, whereas unique green measured in the periphery is consistently at shorter wavelengths than in the fovea. In general, the data are best described by a model in which the short-wavelength-sensitive cone input to the two opponent-color channels decreases with decreasing test size and increasing retinal eccentricity.
针对四名观察者，在中央凹以及20度颞侧偏心率下，测量了作为测试大小函数的独特色调位点。在杆体漂白后，在视锥细胞平台上进行偏心测量。结果表明，独特黄色相对于测试大小和视网膜偏心率大致保持不变，而独特蓝色和独特绿色随着测试大小的增加向更长波长移动。周边区域独特蓝色的位点在大约与中央凹测量相同的波长处达到渐近线，而周边区域测量的独特绿色始终处于比中央凹更短的波长。总体而言，这些数据最好用一个模型来描述，即两个对立颜色通道的短波敏感视锥细胞输入随着测试大小的减小和视网膜偏心率的增加而减少。
