© 1970 by The Society for Integrative and Comparative Biology
Endocrine Effects of the Mammalian Pineal
Department of Zoology, University of California Berkeley, California 94720
The current status of knowledge concerning the mammalian pineal's endocrine effects and the possible mechanisms for their mediation is reviewed and discussed. The diversity, physiological relations, and variability of the pineal's peripheral effects, and the constancy, rapidity, and homeostatic nature of its central and behavioral effects are consistent with the view that the pineal's primary action is on brain tissue. It remains probable that on a seasonal basis, the pineal's vegetative and homeostatic effects may contribute to the adaptive physiological changes in particular mammalian species under the influence of changes in photoperiod and possibly other environmental factors.