rct
    2021
    High Quality

    Cognitive enhancement effects of stimulants: a randomized controlled trial testing methylphenidate, modafinil, and caffeine

    Unknown authors

    Published in Psychopharmacology (Berl)

    Key Findings

    Caffeine and other stimulants increased effort and motivation but did not improve overall problem-solving quality versus placebo.

    Conclusions

    Well-designed null result for higher-order cognitive gains.

    Outcomes Measured

    Afternoon Slump Prevention

    Caffeine increased effort and motivation but did not improve overall problem-solving quality compared with placebo.

    Study Details

    Year:2021
    Quality Score:7/10

    Access Study

    View on DOIView on PubMedOriginal Source

    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.