Caffeine expectancies influence the subjective and behavioral effects of caffeine

@article{Harrell2009CaffeineEI,
  title={Caffeine expectancies influence the subjective and behavioral effects of caffeine},
  author={Paul Truman Harrell and Laura M. Juliano},
  journal={Psychopharmacology},
  year={2009},
  volume={207},
  pages={335-342}
}
This study investigated the independent and interactive effects of caffeine pharmacology and expected effects of caffeine on performance and subjective outcomes. Abstinent coffee drinkers (n = 60) consumed decaffeinated coffee with either 280 mg or 0 mg added caffeine. Caffeine dose was crossed with varying instructions that the coffee would either enhance or impair performance in a 2 × 2 factorial design. Performance, mood, caffeine withdrawal, and negative somatic effects were assessed… CONTINUE READING
Recent Discussions
This paper has been referenced on Twitter 3 times over the past 90 days. VIEW TWEETS