Effects of the three pharmacoactive compounds on delay discounting. Adjusted amounts are listed in seconds; a higher adjusted amount is representative of decreased impulsivity. [N’s for each group: A. 7, 19, 23, 12; B. 9, 10, 7; C. 9, 10, 10, 9]. Data expressed as mean ± SEM; significance expressed as compared to saline, *p < .05, **p < .01, ***p < .001