Reports

Serotonin shifts the phase of the circadian rhythm from the Aplysia eye

Science  01 Dec 1978:
Vol. 202, Issue 4371, pp. 977-979
DOI: 10.1126/science.309655

Abstract

A putative neurotransmitter, serotonin, may be used to transmit temporal information in the eye of Aplysia, because it can shift the phase of the circadian rhythm of spontaneous optic nerve impulses from the eye and the eye contains a significant quantity of serotonin. Serotonin acts either directly on the cell, or cells, containing the circadian pacemaker or on cells electronically coupled to the pacemaker cells.

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