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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Physiol Behav. 2015 Oct 17;153:115–124. doi: 10.1016/j.physbeh.2015.10.021

Fig. 1.

Fig. 1

Experiment 1A. Mean numbers of infusions in 1-h sessions of operant licking for sugar solutions. Both groups of B6 mice were trained (T) with food-baited spouts and 16% sucrose infusion and then were shifted to licking on empty spouts. The Glucose group was shifted to 16% glucose infusion, and the Fructose group to 16% fructose infusion for 4 sessions. In addition, the Fructose group was shifted to water infusion in sessions 5 to 6. Significant differences (p < 0.05) between groups are indicated by asterisks.