Mary Cannon is Professor of Psychiatric Epidemiology and Youth Mental Health in the Department of Psychiatry at the Royal College of Surgeons in Ireland, Dublin. Mary trained in psychiatry at St John of God Hospital Dublin and the Institute of Psychiatry, London. She holds a Masters degree in Epidemiology from the London School of Hygiene and Tropical Medicine and was awarded her PhD from University of London in 2002, supervised by Professors Robin Murray and Peter Jones. She was awarded a Clinician Scientist Fellowship from the Health Research Board Ireland in 2006. Her research area of interest is developmental psychiatric epidemiology, in particular the study of childhood and adolescent risk factors for schizophrenia. She has worked with longitudinal birth cohort and register data from New Zealand, UK and Finland. Her current research programme focuses on psychotic symptoms in childhood and adolescence. She is a member of the Editorial Boards of Schizophrenia Bulletin, The British Journal of Psychiatry and Irish Journal of Psychological Medicine. She won a Doctor Award (Psychiatry)in 2013 and a Research Award in 2015 from the Royal Academy of Medicine in Ireland. She was listed on the Thompson Reuters Most Cited list in 2014 on the basis of her published work from 2004-2014 and was the only Irish female researcher on the list. Mary works as a clinical liaison psychiatrist in Beaumont Hospital in Dublin and is a Fellow of the Royal College of Psychiatrists and Chair of the Academic Faculty of the College of Psychiatrists of Ireland. She has recently been awarded a European Research Council Consolidator Award for a research programme (iHEAR) to investigate the meanings and mechanisms of psychotic symptoms among young people.