Anita Thapar, Cardiff University, Institute of Psychological Medicine and Clinical Neurosciences, MRC Centre in Neuropsychiatric Genetics and Genomics, Cardiff University School of Medicine, Heath Park, Cardiff, UK Daniel S. Pine, Chief, Section on Development and Affective Neuroscience, NIMH Intramural Research Program, Bethesda, MD, USA James F. Leckman, Neison Harris Professor in the Child Study Center and Professor of Pediatrics and of Psychiatry; Director, Research at Child Study Center, Yale School of Medicine, New Haven, CT, USA Stephen Scott, Department of Child and Adolescent Psychiatry, Institute of Psychiatry, King's College, London, UK Margaret J. Snowling, St John’s College and University, Oxford, UK Eric Taylor, Emeritus Professor of Child and Adolescent Psychiatry, King's College London institute of Psychiatry, UK