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. Author manuscript; available in PMC: 2015 Jun 22.
Published in final edited form as: Physiol Behav. 2014 May 6;133:92–98. doi: 10.1016/j.physbeh.2014.04.042

Figure 3.

Figure 3

Experiment 2. Mean (+sem) 1-h total licks are plotted for one-bottle Tests 0–3 and the two-bottle preference test. The rats drank (1 h/day) a CS− flavored saccharin solution paired with IG water self-infusions in Test 0 before being switched to a CS+ flavored saccharin solution paired with IG 8.6% MDG self-infusions in Tests 1–3. CS+ and CS− intakes were not paired with IG infusions during the two-bottle test. Significant differences (P < 0.05) between Test 0 vs. Test 3 licks and between CS+ and CS− licks are indicated by an asterisk. Number atop bar represents mean percent preference for the CS+ solution.