Experiment 1. Intakes (+S.E.M.) of the CS+ and CS− during two-bottle choice tests; data represent the mean of two 30-min sessions. Ten minutes prior to testing, the rats were injected with 0 (vehicle), 12, 24, 48 nmol of SCH23390 into the amygdala (6, 12, 24 nmol/side). The CS+ was paired with concurrent intragastric infusions of glucose and the CS− was paired with intragastric water infusions during training. No gastric infusions were given during testing. The asterisk denotes a significant (p < 0.05) difference between CS+ and CS− intakes. The numbers atop the bars represent the mean of the individual rat’s percent CS+ intakes.