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Mo Costandi: Functional neuroimaging reveals the neural basis of the intense imagery induced by the "spirit vine"...
"In a hut, in a forest, in the mountains of Colombia, I am puking into a bucket. I close my eyes and every time my body convulses I see ripples in a lattice of multi-coloured hexagons that flows out to the edges of the universe." Vaughan Bell's description seems to be typical of the ayahuasca experience – at once unpleasant, frightening and enlightening.
