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Schematic showing scanning protocol. Capsules contained Placebo (vitamin C) or 3, 4-methylendediocymethamphetamine (MDMA) hydrochloride (100 mg). Of relevance to the present analysis is the first BOLD scan performed at 60 min following capsule ingestion, outlined in red. BOLD, blood oxygen level dependent. Figure adapted from Carhart-Harris et al, 2015.
