"Dr. Dennis McKenna is an ethnopharmacologist, author and founder of Symbio Life Sciences. He has dedicated his career to the study of hallucinogens and psychedelics and is a founding board member of the Heffter Research Institute, a non-profit organisation dedicated to investigating therapeutic uses of psychedelic medicines.
He has conducted extensive ethnobotanical fieldwork in the Peruvian, Colombian, and Brazilian Amazon and has recently completed a four year project investigating Amazonian ethnomedicines as potential treatments for cognitive disorders in schizophrenia.
Dennis and his late brother Terrance McKenna are considered pioneers among plant medicine scholars."
Far out, Dennis ... or should that be "far in"?-)