A number of drugs that are used recreationally are now being studied for their use in psychopharmacology. But while the ways in which these drugs are similar or different has been described anecdotally by recreational users, they haven’t been studied in comparison to one another. Dr. Matthias Liechti and his team of researchers recently published a study in the journal Neuropsychopharmacology, in which 28 healthy subjects, men and women, take doses of LSD, MDMA, amphetamines, and a placebo over four different sessions. Dr. Liechti says this blinding is important; in other studies, participants either have taken a drug or a placebo and can tell when they’re taking the drug. But in this case they don’t know which drug they’re taking, which allows the effects of the drugs to be compared against each other. Take a listen to find out more!

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