Cultural Neurophenomenology of Psychedelic Thought: Guiding the “Unconstrained” Mind Through Ritual Context Michael LIFSHITZ, Eli SHEINER, and Laurence J. KIRMAYER The Oxford Handbook of Spontaneous Thought : Mind-Wandering, Creativity, and Dreaming Edited by Kalina Christoff and Kieran C.R. Fox, avril 2018   Abstract : This chapter explores psychedelics as catalysts of spontaneous thought. Classic serotonergic psychedelics such as psilocybin, LSD, and ayahuasca can induce potent alterations in cognition and perception. The chapter reviews research on these substances through the lens of cultural neurophenomenology, which aims to trace how neurobiology and sociocultural factors interact to shape experience. After a decades-long hiatus, the scientific study of psychedelics is rediscovering [...]