Effects of systemic administration of 2.5, 5, 10, and 20 mg/kg of NVP-AAM077 (arrow) on the efflux of 5-HT (a) and glutamate (b) in the mPFC. Data (mean±SEM) are expressed as percentage changes of the four basal pretreatment values. Number of animals is given in parentheses. The control group received one injection of vehicle (arrow). *p<0.05, **p<0.005, Newman–Keuls test following ANOVA.