Affiliation:
1. From the Biological Laboratories, Harvard University, Cambridge
Abstract
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.
Publisher
Rockefeller University Press
Cited by
15 articles.
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