A phenomenology of subjectively relevant experiences induced by ayahuasca in Upper Amazon vegetalismo tourism Tom John Wolff, Simon Ruffell, Nigel Netzband and Torsten Passie Journal of Psychedelic Studies, 2018 Doi : 10.1556/2054.2019.007   Aims : This heuristic study reports observations on the phenomenology of ayahuasca experiences of nine foreign tourist participants of an ayahuasca retreat in Peru. Methods : Narrative interviews, reflecting individual experiences after ayahuasca “night ceremony,” have been analyzed by qualitative content analysis using a data-driven strategy in order to extract themes and categories inherent in the interviews. Previously, a demographic questionnaire was given. The dose–response connection was uncontrolled, which is typical for this [...]