This pre-registered randomised placebo-controlled study (n=34) investigates the effects of MDMA (100mg) administration on personality traits and affective states in healthy adults. While no statistical significance was found for the primary hypotheses, medium effect sizes were observed for increased Openness (d = 0.79) and Positive Affect (d = 0.51) 48 hours after MDMA administration compared to placebo.
- Published
- Journal
- Journal of Psychoactive Drugs
- Authors
- Maples-Keller, J. L., Hyatt, C. S., Phillips, N. L., Sharpe, B. M., Sherrill, A., Yasinski, C., Reiff, C., Rakofsky, J., Rauch, S. A. M., Dunlop, B. W., Rothbaum, B. O.