Ringo J, Wolbarsht M L, Wagner H G, Crocker R, Amthor F
Science. 1977 Nov 18;198(4318):753-5. doi: 10.1126/science.910161.
Many cat retinal ganglion cells (types X, Y, and W) have inputs from three separate cone systems. Those with peak sensitivities at 450 and 555 nanometers have been previously shown. A gamma max cone with a peak sensitivity of 500 nanometers can be differentiated from other cones by spectral sensitivity and from rods by receptive field differences, functioning above rod saturation levels, and by cone-rod breaks in the dark-adaptation curves. The similarity of the three-cone cat retina to the extramacular retina of the rhesus monkeys suggests that the cat may have photopic trichromatic vision.
许多猫的视网膜神经节细胞（X型、Y型和W型）接收来自三个独立视锥系统的输入。先前已证明存在峰值敏感度分别在450纳米和555纳米的视锥细胞。峰值敏感度为500纳米的γ-最大视锥细胞可通过光谱敏感度与其他视锥细胞区分开来，并通过感受野差异、在高于视杆细胞饱和水平时发挥作用以及暗适应曲线中的视锥-视杆细胞转折点与视杆细胞区分开来。猫的三视锥视网膜与恒河猴的黄斑外视网膜相似，这表明猫可能具有明视觉三色视觉。
