The effects of psilocybin on cognitive and emotional functions in healthy participants : Results from a phase 1, randomised, placebo-controlled trial involving simultaneous psilocybin administration and preparation James J Rucker, Lindsey Marwood, Riikka-Liisa J Ajantaival, Catherine Bird, Hans Eriksson, John Harrison, Molly Lennard-Jones, Sunil Mistry, Francesco Saldarini, Susan Stansfield, Sara J Tai, Sam Williams, Neil Weston, Ekaterina Malievskaia and Allan H Young     Abstract Background : Psilocybin, a psychoactive serotonin receptor partial agonist, has been reported to acutely reduce clinical symptoms of depressive disorders. Psilocybin’s effects on cognitive function have not been widely or systematically studied. Aim : The aim of this study was to [...]