The Serotonergic Raphe Promote Sleep in Zebrafish and Mice

The wake-active serotonergic system (STS) has been considered part of the ascending arousal system that promotes wakefulness. Using zebrafish and mice, Oikonomou, Altermatt et al. demonstrate that the STS promotes sleep, potentially by generating homeostatic sleep pressure during wakefulness.

from journals http://bit.ly/2N7nl4J