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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Biol Psychiatry. 2013 Oct 4;76(1):8–14. doi: 10.1016/j.biopsych.2013.09.028

Figure 3. Effect of ShA versus ExA self-administration on motivation for cocaine in the vulnerable versus the resistant group.

Figure 3

Mean (± SEM) number of cocaine infusions obtained and the corresponding final ratios completed during the first three stable PR sessions for the vulnerable (OVX+E, filled circles) and the resistant (OVX+Veh, open circles) groups tested following either ShA (vulnerable, N=10; resistant, N=7) or ExA (vulnerable, N=10; resistant, N=8) self-administration and a 14-day abstinence period. * represents a significant difference from the ExA resistant group; # represents a significant difference from ShA controls.