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Science 9 October 1964:
Vol. 146. no. 3641, pp. 272 - 273
DOI: 10.1126/science.146.3641.272
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Articles

Light: Evidence for Its Direct Effect on Hypothalamic Neurons

R. D. Lisk 1 and L. R. Kannwischer 1

1 Department of Biology, Princeton University, Princeton, New Jersey

Continuous light impinging on the suprachiasmatic region of enucleate rats resulted in a constant estrous-like vaginal cycle. The lowest precentage of cornified cells was obtained from exposure of the arcuate or mammillary neurons to light. Ovarian and pituitary weight increased significantly after exposure of the arcuate region to continuous light.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Circadian Entrainment to Temperature, But Not Light, in the Isolated Suprachiasmatic Nucleus.
E. D. Herzog and R. M. Huckfeldt (2003)
J Neurophysiol 90, 763-770
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Extraoptic Phase Shifting of Circadian Locomotor Rhythm in Salamanders.
K. Adler (1969)
Science 164, 1290-1292
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