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. Author manuscript; available in PMC: 2011 Apr 15.
Published in final edited form as: Biol Psychiatry. 2010 Feb 26;67(8):753–760. doi: 10.1016/j.biopsych.2009.12.035

Figure 3. Orexin −/− mice display a delayed instrumental acquisition.

Figure 3

(A) Mean number of reinforcers earned. (B) Mean number of active and inactive nose pokes. (C) Mean number of active nose pokes represented as percentage of total responses. Vertical lines represent the standard error of the mean (SEM).