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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: Behav Brain Res. 2015 Feb 7;284:1–10. doi: 10.1016/j.bbr.2015.02.004

Fig. 3.

Fig. 3

Average daily wheel running activity from 4 WR rats with verified functioning ICV cannulas in Experiment 1. The letter S and D indicates saline and DAMGO injection, respectively. Rats received ad lib access to standard chow diet during non-injection days. On the injection days, they received simultaneous access to a Prolab and a HF diet for 3 hours after the injection (see the description in Section 2).