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Effects of bilateral perfusion of D1-type (SKF), D2-type (QUIN) and D1+D2-type (SKF+QUIN) agonists into NAS core and shell on cocaine-seeking. For all panels, solid and open symbols respectively depict the mean (±SEM) numbers of active- and inactive-lever presses. Arrows depict the starting point of agonist perfusion. *, P < 0.05 vs. aCSF as revealed by post-hoc Tukey HSD comparisons following ANOVA. n = 6-8/group.
