Jacobs G H
Vision Res. 1984;24(10):1267-77. doi: 10.1016/0042-6989(84)90181-0.
Color vision was studied in 27 squirrel monkeys (Saimiri sciureus) of Peruvian origin (Roman Arch variety). Tests of wavelength discrimination and Rayleigh matching as well as a search for a spectral neutral point were carried out in a behavioral paradigm involving a three-alternative, forced-choice discrimination. Significant individual variations in color vision were found in this species. Some squirrel monkeys have trichromatic color vision, others are dichromats. Within each of these catagories there appear to be three subtypes. Each of these color vision phenotypes can be interpreted as reflecting the presence of a different combination of the types of cone photopigments known to characterize this species. There is a striking gender difference in squirrel monkey color vision; whereas both trichromatic and dichromatic female monkeys were found, all of the males tested were dichromats.
对27只秘鲁原产（罗马拱门品种）的松鼠猴（松鼠猴属）的色觉进行了研究。在一种涉及三选一、强制选择辨别的行为范式中，进行了波长辨别测试、瑞利匹配测试以及寻找光谱中性点的测试。在该物种中发现了色觉的显著个体差异。一些松鼠猴具有三色视觉，另一些是二色视者。在每一类中似乎都有三种亚型。这些色觉表型中的每一种都可以解释为反映了已知表征该物种的视锥光色素类型的不同组合的存在。松鼠猴的色觉存在显著的性别差异；虽然发现了三色和二色的雌性猴子，但所有接受测试的雄性都是二色视者。
