Today we discuss oo-koo-he, ayahuasca, habit and novelty theory, 2012, Terence McKenna, plant communication and the future of psychedelic research. For the last thirty years, Dennis McKenna has pursued the interdisciplinary study of ethnopharmacology and plant hallucinogens. He is co-author, with his brother Terence, of The Invisible Landscape: Mind, Hallucinogens, and the I Ching (Seabury Press, 1975; Citadel Press, 1991), a philosophical and metaphysical exploration of the ontological implications of psychedelic drugs which resulted from the two brothers’ early investigations of Amazonian hallucinogens in 1971. He received his doctorate in 1984 from the University of British Columbia. His doctoral research focused on ethnopharmacological investigations of the botany, chemistry, and pharmacology of ayahuasca and oo-koo-he, two orally-active tryptamine-based hallucinogens used by indigenous peoples in the Northwest Amazon. Following the completion of his doctorate, Dr. McKenna received post-doctoral research fellowships in the Laboratory of Clinical Pharmacology, National Institute of Mental Health, and in the Department of Neurology, Stanford University School of Medicine. In 1990, he joined Shaman Pharmaceuticals as Director of Ethnopharmacology. He joined the Center for Spirituality and Healing at the University of Minnesota in 2001 as a Senior Lecturer and Research Associate. He is a founding board member and Vice-President of the Heffter Research Institute, a non …