Figure 7.
Experiment 4. Intakes (+S.E.M.) of the CS+ and CS− during two-bottle choice tests; data represent the mean of four 30-min sessions. The CS+ and CS− were paired with intragastric infusions of 8 ml glucose and water, respectively, during training. No gastric infusions were given during testing. The SCH group was given injections of 12 nmol of SCH23390 into the central amygdaloid nucleus (6 nmol/side) ten minutes prior to the daily training sessions while the Control group was given vehicle injections. No injections were given prior to the two-bottle choice tests. 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.