A, Mean (± SEM) number of gapes elicited by a 3 min infusion of a LiCl-paired 0.1% saccharin solution across trials for the posterior IC groups: 1 μg of OND (n = 8), 0.1 μg of OND (n = 9), and VEH (n = 8) in Experiment 2a. Both doses of OND (0.1 and 1 μg) significantly reduced the number of gapes during the drug-free test compared to VEH (*p < 0.05). B, Mean (± SEM) saccharin preference ratio (saccharin solution/[saccharin solution + water]) in a 120 min two-bottle consumption test for the posterior IC groups: 1 μg of OND (n = 8), 0.1 μg of OND (n = 9), and VEH (n = 8) in Experiment 2a. There were no group differences.