Luke, David ORCID: 0000-0003-2141-2453 , Timmermann, Chris, Kaelen, Mendel, Schwartman, David, Bell-Langford, Beth, Tollan, Aimee, Hadzhiyski, Viktor and Bergin-Cartwright, Gabriella (2019) Non-drug altered states as psychedelic experiences. In: Breaking Convention: The 5th International Conference on Psychedelic Consciousness,, 16 - 18 Aug 2019, University of Greenwich. (Unpublished)