Article ID Journal Published Year Pages File Type
4315597 Behavioural Brain Research 2007 5 Pages PDF
Abstract

Serotonin, acting through a cAMP-signaling pathway, delayed habituation to criterion of the leech's swim response to touch. This delay was reversed by crushing the connective between serotonin-exposed and serotonin-naive ganglia, and correlated with an increase in spontaneous impulse activity in this connective. We suggest that increased activity in intersegmental interneurons may play a role in maintaining swim responsiveness when concentrations of serotonin are elevated.

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