Altered States of Consciousness During Ceremonial San Pedro Use
International Journal for the Psychology of Religion December 5, 2022 Arne Bohn, Michiel H. H. Kiggen, Malin V. Uthaug et al. 10 citations
San Pedro, a cactus containing mescaline and used for millennia, is now popular in European ceremonial retreats. In a study of 42 participants at such retreats in the Netherlands, questionnaires measured 11 dimensions of altered consciousness, ego-dissolution, mystical experiences, and challenging experiences. Results indicate San Pedro produces deviations from normal waking consciousness on all 11 subscales, moderate ego-dissolution, and a complete mystical experience in two-thirds of participants. Spiritual experiences are strongly expressed, while disembodiment, anxiety, impaired control, and transcendence of space are low; physical distress and grief can occur during challenging experiences. Network analysis revealed two separate networks of positive and negative altered states.