Sleep and Melatonin in Diurnal Species

Abstract

Melatonin secretion, occurring at night in both diurnal and nocturnal species, provides an important circadian signal for initiating different types of behavior. In diurnal vertebrates, e.g., humans, macaques, zebrafish, this pineal hormone also has a pronounced acute effect on sleep. This effect on homeostatic sleep regulation is mediated via specific… (More)

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