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. Author manuscript; available in PMC: 2021 Mar 15.
Published in final edited form as: Physiol Behav. 2019 Mar 8;206:13–21. doi: 10.1016/j.physbeh.2019.03.005

Figure 1.

Figure 1.

Instrumental training averaged across two-session blocks. (a) All rats showed evidence of instrumental responding, gradually increasing their responding following increases in the mean number of responses required to obtain the to-be-devalued and the to-be-maintained reinforcer. There were also no differences in responding to the two separate levers in either (b) BER, (c) BEN or (d) BEP rats. Error bars indicate SEM.