Researchers concluded that taking a psychostimulant to boost short-term cognitive performance may not be worth the risk.
and the other to assess the drugs’ effect on sleep and working memory. Memory and attention tests were administered at the beginning of the study to establish baseline measurements for comparison. Participants were administered either a placebo or 20 milligrams of dextroamphetamine, a psychostimulant present in Adderall., after 24 hours and a night of sleep, those who took the stimulant began performing much worse on working memory tasks than those who took the placebo.
In the 43 participants studied for focus, attentional performance was 4% better in those who received the stimulant at 75 minutes after taking it, but no benefit was experienced 12 and 24 hours after taking it. Co-author of the study, Sara Mednick, says these findings suggest that the “purported enhancement to executive function from psychostimulants in healthy populations may be somewhat exaggerated.
Whitehurst, Lauren N. et al. “The impact of psychostimulants on sustained attention over a 24-h period.”
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