Effects of Selective Serotonergic Agonists on Palatability–Induced Ingestion

The serotonergic (5–hydroxytryptamine) neurotransmitter system has been repeatedly implicated in the control of ingestive behaviours, with most agonists producing decreases (Blundell 1977, 1986). Recently, a new potent and selective serotonin agonist, 8–OH–DPAT, has been reported to increase feeding in non–deprived rats at low doses (e.g. Dourish et al., 1985a, b).