Michael Winkelman, PhD, University of California–Irvine; MPH, University of Arizona, retired from the School of Human Evolution and Social Change at Arizona State University in 2009. Winkelman has engaged in cross-cultural and interdisciplinary research on shamanism, psychedelics, and altered states of consciousness, focusing principally on the universal patterns of shamanism and identifying the associated biological bases. His publications on shamanism include Shamans, Priests and Witches (1992), which provides a cross-cultural examination of the nature of shamanism; and Shamanism: A Biopsychosocial Paradigm of Consciousness and Healing (2nd ed., 2010). Shamanism provides a biogenetic model of shamanism that explains the evolutionary origins of spiritual healing in ancient ritual capacities. This biogenetic approach is expanded in an assessment of the evolutionary origins of religion in his co-authored Supernatural as Natural. These approaches provide a framework for understanding the contribution of psychedelics to the evolution of the human mind and social relations and their continued application in healing. Winkelman served as an expert witness for the defense in the Santo Daime case against the U.S. federal government, which won their right of religious freedom to use of ayahuasca as a sacrament.
Winkelman received a Fulbright Fellowship for research on the health of ayahuasca church members in Brazil during 2009 (https://doi.org/10.3389/fpsyt.2018.00136 ). Winkelman is currently living near Pirenopolis in the central highlands of Brazil; he may be reached through his website.