Ellen Kamhi talks with Dr. Irene de Caso, a biologist who first specialized in neurobiology and then completed a master’s of science and a doctorate in cognitive neuroscience and neuro-imaging from the University of York. A co-organizer of the 2020 Interdisciplinary Conference on Psychedelic Research and co-director of the Madrid Psychedelic Society, she lives in Madrid, Spain, where she works as a neuroscientific consultant and is studying to become a clinical psychologist. She is the author of "Psychedelics and Mental Health: Neuroscience and the Power of Psychoactives in Therapy."