Neural mechanisms of food intake and social behavior: roles of neuropeptides

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Epidemiological studies have suggested interactions between food intake and social behaviors. This study show that food intake and social stimuli activated oxytocin-synthesizing neurons in the hypothalamus, that activation of oxytocin-synthesizing neurons following food intake was caused by activation of prolactin releasing peptide-synthesizing neurons in the medulla oblongata, and that oxytocin released following food intake played an important role in termination of food intake. Considering the data that oxytocin modulates both food intake and social behavior, it is possible to consider that oxytocin plays a role in interaction between food intake and social behavior.