PahnkeWN. Drugs and mysticism: An analysis of the relationship between psychedelic drugs and the mystical consciousness. Thesis: Harvard University; 1963.
2.
DoblinR. Pahnke’s “Good Friday experiment”: A long-term follow-up and methodological critique. Journal of Transpersonal Psychology, 1991; 23(1):1–28.
3.
GriffithsRR, RichardsWA, McCannU, et al.Psilocybin can occasion mystical-type experiences having substantial and sustained personal meaning and spiritual significance. Psychopharmacology (Berl), 2006; 187(3):268–283.
4.
GriffithsRR, RichardsWA, JohnsonMW, et al.Mystical-type experiences occasioned by psilocybin mediate the attribution of personal meaning and spiritual significance 14 months later. J Psychopharmacol, 2008; 22(6):621–632.
5.
GriffithsRR, JesseR, RichardsWA, et al.Effects of psilocybin on religious and spiritual attitudes and behaviors in clergy from various major world religions. Psychedelic Medicine, 2025; 3(4):172–191.
6.
YadenD, NayakSM, GriffithsR. Belief change and agnostic frames in psychedelic research and clinical contexts. In: Philosophical Perspectives on Psychedelic Psychiatry. (LethebyC, GerransP, MatthewsE., eds). Oxford University Press: Oxford; 2024. pp. 84–166.
7.
CherniakAD, GranqvistP. How does psychedelic use relate to aspects of religiosity/spirituality? Preregistered report from a birth cohort study and a prospective longitudinal study. Psycholog Relig Spiritual, 2025; 17(3):175–194.
8.
HartogsohnI. American Trip: Set, Setting, and the Psychedelic Experience in the Twentieth Century. The MIT Press: Cambridge, MA; 2020.
