Skip to main content
. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Pharmacol Biochem Behav. 2011 Jun 25;99(4):688–695. doi: 10.1016/j.pbb.2011.06.021

Figure 3.

Figure 3

The effects of the concentration of cocaine infused into the nucleus accumbens shell on the mean (± SEM) number of responses on the active and inactive levers by P (left panel) and Wistar (right panel) rats for the 0, 100 and 200 pmol/100 nl groups. * indicates significantly greater active lever responses by P rats for the 200 pmol/100 nl group compared to respective inactive lever responses and compared to active lever responses for the 0 or 100 pmol/100 nl groups during sessions 1–4. # indicates greater responses during session 7 compared to session 4 by P rats for both the 100 and 200 pmol/100 nl groups and greater responses compared to the aCSF (0 pmol/100 nl) group.