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. Author manuscript; available in PMC: 2019 Apr 11.
Published in final edited form as: Psychopharmacology (Berl). 2018 Nov 28;236(1):517–529. doi: 10.1007/s00213-018-5122-2

Figure 2. Acute effects of RGFP966 on asymptotic responding for cocaine on during an (A) FR5 or (B) progressive ratio schedule of reinforcement.

Figure 2.

(A) Average active and inactive lever presses during fixed ratio (FR5) maintenance self-administration (2-hr duration) sessions that were preceded by no injection (baseline) or injection of vehicle or RGFP966 (n=7). (B) Average active and inactive lever presses during 3-hr progressive ratio sessions during baseline and followed by vehicle or RGFP966 injections (n=23). Error bars indicate the standard error of the mean. The main effect of group was not reliable and did not interact with lever or time block.