Subjective effects of different psychedelics: a comparison
In this talk I will present the results of a study on the subjective effects of different psychedelics, specifically looking to the occurrence of mystical or peak experiences. The test used for the present study was the States of Consciousness Questionnaire (SCQ), also known as Peak Experience Profile (PEP). The PEP was originally developed by Walter Pahnke (1963) with the aim of measuring and for the evaluation of the potential single mystical experiences occasioned by psilocybin. A modified version of the questionnaire, the SCQ, was developed and administered recently by Griffiths et al (2006, 2008, 2011) to conduct a number of studies to characterize the mystical-type effects of psilocybin. The aim of the present study was to compare the subjective effects produced by different psychedelic compounds and/or in different contexts. Significative differences were found between the subjective effects produced by different psychedelics, including the occurrence of mystical experiences.
Iker Puente is a psychologist and researcher from the Autonomous University of Barcelona (UAB). He holds a degree in Psychology from the University of Deusto and a degree in Anthropology from the UAB. He obtained his PhD degree at the UAB with his dissertation “Complexity and Transpersonal Psychology: chaos, self-organization and peak experiences in psychotherapy”, exploring the short and medium term effects of two breathwork techniques, Holotropic Breathwork (HB) and Holorenic Breathwork (HrnB), and the subjective effects of HB. He has been trained in Gestalt Therapy at the Institut Gestalt in Barcelona, in Altered States of Consciousness at the Society of Etnopsychology and Cognitive Studies, and in Holotropic Breathwork and Transpersonal Psychology at the Grof Transpersonal Training. He has been visiting scholar at the California Institute of Integral Studies (CIIS), coordinator of the psychedelic emergency service at BOOM festival in 2008, 2010 and 2014, and has teaching experience in the field of transpersonal psychology. He works as a psychotherapist in Barcelona, organize Transpersonal Breath workshops, transpersonal psychology seminars and conferences, and coordinates a specialization course on “The transpersonal approach and its application to psychotherapy”. He has published numerous articles in different journals and books. He is also Assistant Editor of the Journal of Transpersonal Research (JTR), and a founding member of the Asociación Transpersonal Iberoamericana (ATI) (Iberoamerican Transpersonal Association).