Fig. 6.
Active lever responses during the extinction baseline (Ext) and each reinstatement test session (Mean ± SEM). Experiments were conducted in adult WKY, WIS, and SHR following vehicle or d-amphetamine treatment during adolescence. * p ≤ 0.05 compared to both other strains. ^ p ≤ 0.05 compared to vehicle-treated SHR.