Self-Regulated Exposure to Light by Dark- or Light-Treated Rats

Journal/Book: Reprinted from Science February 2 1961 Vol. 135 No. 3501 pages 377-378. 1961;

Abstract: Department of Psychology University of Wisconsin Madison Abstract Rats allowed to expose themselves to light do so for a rather constant length of time each day. This duration of exposure depends upon both the brightness of the light used for testing and the illumination in which the rats were maintained before testing. ___MH

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