Catecholaminergic and Opioid Mechanisms in Conditioned Food Intake Behavior of the Monkey Amygdala

Amygdalar neurons respond to complex visual stimuli and activity changes at the sight of food (Ono et al., 1983; Sanghera et al., 1979). The amygdala (AM) is among the richest of the brain areas in opioid receptors and endogenous ligands, but the functional role of its opioid system in feeding behavior is not yet understood.