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Science 22 July 1977:
Vol. 197. no. 4301, pp. 398 - 399
DOI: 10.1126/science.877566
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Articles

Science, Vol 197, Issue 4301, 398-399
Copyright © 1977 by American Association for the Advancement of Science

articles

Suprachiasmatic nuclear lesions do not abolish food-shifted circadian adrenal and temperature rhythmicity

DT Krieger, H Hauser, and LC Krey

Daytime restriction of food and water availability in nocturnal animals phase shifts the circadian periodicity of plasma corticosteroid concentrations and body temperature. These shifted rhythms persist in animals with lesions of the suprachiasmatic nuclei who are arrhythmic under normal conditions. These findings suggest the existence of an additional "clock" that may be involved in the generation of the rhythm.


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