(untitled) - Carhart-Harris, R L; Erritzoe, D; Williams, T; Stone, J M; Reed, L J; Colasanti, A; Tyacke, R J; Leech, R; Malizia, A L; Murphy, K; Hobden, P; Evans, J; Feilding, A; Wise, R G; Nutt, D J (Proc. Natl. Acad. Sci. U.S.A., 2012)