Renaud Jardri, M.D., Ph.D., is a child psychiatrist at the Lille University Medical Centre, France and associate faculty at the Group for Neural Theory, École Normale Supérieure, Paris, France. Arnaud Cachia, Ph.D., is Associate Professor in Neurosciences at Université Paris Descartes, affiliated with the Center for Psychiatry and Neurosciences (INSERM, Ste-Anne Hospital) and the Laboratory for the Psychology of Child Development and Education (CNRS, Sorbonne). Pierre Thomas, M.D., Ph.D., is Professor of Psychiatry at the Lille North of France University School of Medicine and Co-Research Director of the "Hallucinations & Delusions" team in the Functional Neuroscience and Disorders Laboratory (Lille, France). Delphine Pins, Ph.D., is a CNRS researcher at the Functional Neurosciences and Disorders Laboratory (Lille, France), where she is Co-Research Director of the "Hallucinations & Delusions" team.