Jacobs G H, Tootell R B, Blakeslee B
Folia Primatol (Basel). 1979;32(3):193-9. doi: 10.1159/000155912.
Aotus monkeys were tested in a forced-choice discrimination task to determine their ability to discriminate sinusoidally flickering lights varying in temporal frequency and luminance contrast. Under conditions of moderate light adaptation this primate is maximally sensitive to lights flickering at 10 Hz while the highest frequency they can discriminate is about 42 Hz. At very low light levels (10(-5) ft L) maximum sensitivity is for 2.2--5 Hz flicker. The highest flicker rate that could be discriminated under these conditons was about 29 Hz. In comparison to humans tested in the same situation. Aotus monkeys show relatively lower sensitivity to temporal flicker under conditions of light adaptation but relatively higher sensitivity at very low light levels.
夜猴在一项强制选择辨别任务中接受测试，以确定它们辨别时间频率和亮度对比度变化的正弦闪烁光的能力。在中等光适应条件下，这种灵长类动物对10赫兹闪烁的光最为敏感，而它们能够辨别的最高频率约为42赫兹。在极低光照水平（10^(-5)英尺朗伯）下，最大敏感度是针对2.2 - 5赫兹的闪烁。在这些条件下能够辨别的最高闪烁频率约为29赫兹。与在相同情况下测试的人类相比，夜猴在光适应条件下对时间闪烁的敏感度相对较低，但在极低光照水平下敏感度相对较高。
