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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Psychopharmacology (Berl). 2010 Feb 24;209(2):191–202. doi: 10.1007/s00213-010-1789-8

Figure 2.

Figure 2

Effects of the dopamine D2 agonists apomorphine and quinpirole, and the dopamine D1 agonist SKF-38393 in rats trained to discriminate 3 mg/kg of THC from vehicle. Ordinates: overall percentage of responses on the lever associated with THC administration (upper panels) and overall rate of lever pressing expressed as responses per seconds (lower panels) averaged over the entire session. Abscissae: dose in mg/kg (log scale). Results represent means±SEM from 9–10 rats. Repeated measures ANOVA followed by post-hoc Dunnet’s test: * and **: p<0.05 and p<0.01 compared to vehicle. Numbers in parenthesis at higher doses indicate the number of rats that completed at least one fixed ratio during the session over the total number of rats in which the dose was tested.