Nicolas Langlitz is a medical anthropologist and historian of science. He wrote a book on the clinical practice of the French psychoanalyst Jacques Lacan (Die Zeit der Psychoanalyse, Frankfurt/M.: Suhrkamp, 2005). A second book on the revival of psychedelic research since the “Decade of the Brain“ is forthcoming. He has begun to work on a new project on the interdisciplinary exchange between life scientists and philosophers in the contexts of dream research and studies of cooperative behavior in primates. He serves as assistant professor of anthropology at the New School for Social Research in New York.