Biological Laboratories, Harvard University, Cambridge.
J Gen Physiol. 1941 Jan 20;24(3):317-24. doi: 10.1085/jgp.24.3.317.
The lizard Phrynosoma, with purely cone retina, provides a simplex flicker response contour (log critical flash intensity as a function of flash frequency). It is well described as a normal probability integral (F - log I). The Phrynosoma curve differs markedly, in higher slope and in higher median intensity level, from that obtained under the same conditions for the turtle Pseudemys, also with entirely cone retina. Other comparisons having a bearing on the duplexity doctrine are discussed.
蜥蜴 Phrynosoma 具有纯圆锥体视网膜,提供了一个简单的闪烁反应轮廓(对数临界闪光强度作为闪光频率的函数)。它很好地被描述为一个正态概率积分(F - log I)。Phrynosoma 曲线与在相同条件下获得的具有完全圆锥体视网膜的龟 Pseudemys 的曲线明显不同,斜率更高,中值强度水平更高。还讨论了其他与复发性理论有关的比较。