= 21) completed a no-drug baseline session and two counterbalanced experimental sessions that involved ingesting a placebo capsule or an amphetamine-dextroamphetamine immediate release 10 mg capsule. For each session, participants completed objective and self-report/subjective neuropsychological measures. Results indicated no significant differences across sessions for self-report/subjective measures and most objective measures. Specifically, for two outcomes on an objective measure (i.e., continuous performance task-identical pairs), performance improved in either the stimulant and placebo conditions compared to baseline or only the placebo condition compared to baseline. Taken together, the results of this study provide further evidence that stimulant medication does not confer neuropsychological improvement in students without ADHD, and perceived improvements may be better attributed to placebo, rather than pharmacological effects of a stimulant medication for this group. This information can inform ongoing efforts to discourage nonmedical prescription stimulant among college students without ADHD. (PsycInfo Database Record (c) 2026 APA, all rights reserved).
Vasko et al. (Mon,) studied this question.
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