Figure 4. Dorsal mPFC dopamine D1-family receptors mediate yohimbine-induced reinstatement of food seeking.
(A) Systemic SCH23390 (0.01 mg/kg) injections block yohimbine-induced reinstatement; data are mean±sem number of active lever presses during the reinstatement tests. (B) Systemic SCH23390 (0.01 mg/kg) injections block yohimbine-induced Fos expression in dorsal mPFC; data are mean±sem Fos immunoreactive neurons per mm2. (C) Dorsal mPFC SCH23390 injections (0.5 or 1.0 μg/side) decrease yohimbine-induced reinstatement; data are mean±sem number of active lever presses during the reinstatement tests. * Different from the SCH 23390 vehicle condition, p <0.05. Data are based on results from Nair et al. (2011).