Livia Velpry is assistant professor in sociology at the Paris 8 – Saint-Denis University and member of Cermes3 (Paris Descartes University – EHESS – CNRS – INSERM). She co-animated the Collectif Contrast from 2013 to 2017. Her research focuses on the social experience of severe mental disorders and the way violence and behavioural disorders shape mental health care practices. She is the author of Le quotidien de la psychiatrie. Sociologie de la santé mentale, Paris, Armand Colin, 2008, and more recently “Moderniser” l’enfermement en psychiatrie ? Le cas des unités pour malades difficiles, Sociétés contemporaines, 3 (103), 2016.