Table 2.

Mean (± SEM) scores on Stop Task & DPD following placebo, 150 mg bupropion, 300 mg bupropion, and 20 mg d-amphetamine. There were no significant effects of drug treatment. On the Stop Task, 5 participants were excluded for lost or invalid data on one or more sessions. For the Delay and Probability Discounting Task, 1 participant was excluded for lost data on one session. On the BART, data from 3 participants were lost. Adjusted average number of pumps on the BART are shown averaged across all three price conditions (1, 5 & 25 cents).

	Placebo	150 mg bupropion	300 mg bupropion	20 mg d-amphetamine
Stop Task (n = 28)
Go Reaction Time	548.1 ± 28.2	534.5 ± 27.0	543.3 ± 27.0	541.9 ± 29.0
Stop Reaction Time	196.1 ± 11.3	183.6 ± 8.5	190.8 ± 13.9	182.4 ± 11.0
Delay Discounting (n = 32)
AUC values	0.53 ± 0.05	0.54 ± 0.05	0.53 ± 0.05	0.52 ± 0.05
Probability Discounting (n = 32)
AUC values	0.45 ± 0.02	0.45 ± 0.02	0.45 ± 0.02	0.45 ± 0.10
BART (n=32)
Mean Adjusted average number of pumps	42.7 ± 8.1	44.1 ± 7.9	41.7 ± 7.5	43.2 ± 7.8