MARK PLOTKIN @ ESPD50 June 6, 2017 In 1967, a landmark symposium entitled Ethnopharmacologic Search for Psychoactive Drugs was held in San Francisco, California. It was the first international, interdisciplinary group of specialists – from ethnobotanists to neuroscientists – who gathered in one place to share their findings on the use of psychoactive plants in indigenous societies. Follow-up meetings were intended to be held every ten years, but the War on Drugs intervened. On the 50th anniversary, an international group of specialists gathered again to share their perspectives on past, present, and future research in ethnopharmacology. ESPD50.com https://vimeo.com/234628272