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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Pharmacol Biochem Behav. 2009 Sep 13;94(2):262–270. doi: 10.1016/j.pbb.2009.09.005

Figure 8.

Figure 8

Goal-directed behavior of low (Left panel: SD0: n=7, SD4: n=6, and SD8: n=7) and high (Right panel: SD0: n=7, SD4: n=8, and SD8: n=7) drug-taking rats across all SD conditions presented as the comparison of active and inactive responses (both represented as percentages of the total number of responses made) during PR testing. * denotes statistical significance (p < 0.05).