Effects of amphetamine (A), the selective DA reuptake inhibitor GBR12909 (B), the selective NA reuptake inhibitor atomoxetine (C) and the selective 5-HT reuptake inhibitor citalopram (D) on choice behavior, i.e., advantageous options versus disadvantageous options in the rGT. In total, n=20, n=20, n=14, and n=19 animals were included in the analysis, respectively. Asterisk indicates p<0.05 and two asterisks indicate p<0.01 compared to vehicle treatment (paired samples t-test). All data are expressed as mean±SEM.