The circadian output signals from the suprachiasmatic nuclei.

The suprachiasmatic nuclei (SCN) of the anterior hypothalamus comprise a self-sustained biological clock generating an endogenous ∼24-h circadian rhythm, driving many overt daily rhythms in the body. An important remaining question is how the SCN neurons communicate with their efferent targets to control the daily oscillations in behavior and physiology. In… CONTINUE READING