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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Physiol Behav. 2017 Oct 19;203:18–24. doi: 10.1016/j.physbeh.2017.10.018

Figure 2.

Figure 2

Impact of EB on cocaine and food acquisition. (a) Days to acquire cocaine and food self-administration. EB rats took longer to acquire food self-administration. No differences were found for cocaine acquisition. (b) Time to complete acquisition sessions (collapsed over five criterion days). EB rats took longer to complete food sessions; no differences were found for cocaine sessions. (c) Lever presses during acquisition sessions (collapsed over five criterion days). EB rats pressed less in food sessions; no differences were found for cocaine sessions.