Baraas Rigmor C, Foster David H, Amano Kinjiro, Nascimento Sérgio M C
Department of Optometry & Visual Science, Buskerud University College, Norway.
Vis Neurosci. 2006 May-Aug;23(3-4):629-35. doi: 10.1017/S0952523806233297.
Deuteranomalous trichromacy, which affects medium-wavelength-sensitive cones, is more common than protanomalous trichromacy, which affects long-wavelength-sensitive cones. The aim of the present work was to test the extent to which these two kinds of anomalous trichromacy affect surface-color judgments in the natural world. Simulations of 18 natural scenes under different daylight illuminants were presented on a high-resolution color monitor to 7 deuteranomalous, 7 protanomalous, and 12 normal trichromatic observers, who had to discriminate between reflectance and illuminant changes in the images. Observers' ability to judge surface color was quantified by a standard color-constancy index. Deuteranomalous trichromats performed as well as normal trichromats, but protanomalous trichromats performed more poorly than both. The results are considered in relation to the spectral coverage of cones, rod intrusion, and the characterization of anomalous trichromacy by the Rayleigh match.
绿色异常三色性影响中波敏感视锥细胞，比影响长波敏感视锥细胞的红色异常三色性更为常见。本研究的目的是测试这两种异常三色性在多大程度上影响对自然界中表面颜色的判断。在高分辨率彩色显示器上，向7名绿色异常三色性观察者、7名红色异常三色性观察者和12名正常三色性观察者呈现了18个不同日光照明下的自然场景模拟，他们必须区分图像中的反射率和照明变化。观察者判断表面颜色的能力通过标准颜色恒常指数进行量化。绿色异常三色性观察者的表现与正常三色性观察者一样好，但红色异常三色性观察者的表现比两者都差。结合视锥细胞的光谱覆盖范围、视杆细胞干扰以及通过瑞利匹配对异常三色性的表征来考虑这些结果。
