Reymond L
Department of Behavioural Biology, Research School of Biological Sciences, Australian National University, Canberra ACT, Australia.
Vision Res. 1987;27(10):1859-74. doi: 10.1016/0042-6989(87)90114-3.
In the brown falcon the relationship between acuity, as measured using a task designed to test minimum-separable acuity, and luminance was investigated as well as the possible determinants of that relationship. The maximum acuity was 73 c/deg and was found to be resistant to decreases in luminance. Maximum behavioural acuity corresponds closely with the maximum anatomical resolving power of the eye, though it is postulated that, in the first instance, acuity is optically constrained. The flat acuity-luminance function of the falcon results from adaptations which increase the optical sensitivity of the eye compared with the globose eye of strongly diurnal falconiformes.
在褐隼中，研究了使用旨在测试最小可分辨视敏度的任务所测量的视敏度与亮度之间的关系，以及该关系的可能决定因素。最大视敏度为73周/度，并且发现其对视敏度降低具有抗性。最大行为视敏度与眼睛的最大解剖分辨能力密切对应，不过据推测，首先视敏度受到光学限制。与昼夜性很强的隼形目动物的球形眼睛相比，隼的视敏度 - 亮度函数呈平坦状是由于眼睛光学敏感度增加的适应性变化所致。
