[Figure 1 here]
Figure 1. Mean and sem for ratings of Liking, Wanting More,
feelings of Friendly and Sociable for PLC (green), MA (blue) and MDMA
(red) sessions. MDMA significantly increased ratings for liking drug
effects, wanting more of the drug and how Friendly participants felt,
compared to placebo, whereas MA significantly increased ratings of
wanting more drug, Friendly and Sociable.
Session End Questionnaire. On the end of session
questionnaire, 64% of participants correctly identified PLC, 20% of
participants correctly identified MA as a stimulant, and 52% correctly
identified MDMA (full breakdown in supplementary results). Subjects
reported liking MDMA (mean=78.0) and MA (mean=71.2) more than PLC
(mean=48.2).