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. Author manuscript; available in PMC: 2013 May 15.
Published in final edited form as: Physiol Behav. 2012 Jan 20;106(2):95–100. doi: 10.1016/j.physbeh.2012.01.011

FIGURE 1.

FIGURE 1

Discrimination ratio (+/− SEM) as a function of training session appetitive discrimination-reversal training. In the discrimination phase, both groups learned to discriminate between the CSs, but in the reversal phase, the HCR rats outperformed the LCR rats. In fact, the LCR rats were not able to exceed the chance level of responding even after 15 days of training.