Luc Mallet is Professor of Psychiatry at Paris Est Créteil University and neuroscientist at the Paris Brain Institute. He coordinates a series of translational research projects aimed at characterizing the pathophysiology of repeated pathological behaviors in humans. He has been awarded by the French Academy of Sciences rewarding his work on brain dysfunctions underlying obsessive-compulsive disorder (OCD) and the development of innovative multidisciplinary therapeutic approaches. Recently, he started to develop a translational program research on LSD and psilocybin for the treatment of compulsive disorders, including severe alcohol use disorder and OCD. In collaboration with researchers in addictology, anthropology, history and sociology, he is contributing to a transdisciplinary approach of the psychedelic medicine in France. He created the Psychedelic Medicine Section in the French Society of Biological Psychiatry and Neuropsychopharmacology (AFPBN) in 2022.