Denise Jodelet, Docteur d’Etat in Social Psychology, Directeur d’Etudes at the École des Hautes Etudes en Sciences Sociales, and member of the Foundation Maison des Sciences de l’Homme has taken the direction of the Laboratoire de Psychologie sociale of the Ecole des Hautes Etudes en Sciences Sociales after its founder, Serge Moscovici. Specialized in the study of Social Representations she has directed various programs of research and doctoral thesis (particularly in the domains of environment, health, memory, education). She has published many books and articles, of theoretical and empirical nature, on social representations, pointing particularly on the fields of madness and mental health, body, health, environment, collective memory and social threats). She is currently oriented towards meaning construction and transmission through art and religion, giving attention to the imaginary dimension of social representations. Her work has led her to establish stretch collaborative relations with diverse universities in Europe, Latin and South America, Asia and Africa. Responding to Serge Moscovici’s desire to give continuity to the international network animated in the Laboratoire Européen de Psychologie Sociale, she has founded and his the President of the “Réseau Mondial Serge Moscovici” (REMOSCO) at the Fondation Maison des Sciences de l’Homme, Paris.Jorge Vala, PhD in Social Psychology, is an Emeritus Researcher at the Institute of Social Sciences (ICS)/University of Lisbon. Jorge Vala is a former Director of the Institute for Social Sciences from the University of Lisbon and he was the National Coordinator of the European Social Survey (ESFRI). At ICS, his research focus on socio-cognitive processes, namely in the field of social representations and ideologies, social norms and social identities. His present projects articulate these processes with the study of racism and prejudice, migration issues, social threats, political attitudes, social justice, and validation of everyday knowledge.Ewa Drozda-Senkowska, is Professor of Social Psychology in the University of Paris where she has been the Director of the Laboratory of Social Psychology and where she was the Director of the Institute of Psychology. She created a laboratory for the study of social threats at its University. She has coordinated several works on collective irrationalities, the pitfalls of reasoning and psychology of anticipation. She authored several books, chapters and scientific papers focusing on group behaviour and, the more recent ones, on social threats.