Oppositional Defiant Disorder and Conduct Disorder in Children

Walter Matthys is Professor of Aggression in Children at Utrecht University, The Netherlands, and a clinical psychiatrist at the Department of Child and Adolescent Psychiatry, University Medical Centre, Utrecht. His research at the Rudolf Magnus Institute of Neuroscience focuses on neurobiological and psychological characteristics in children and adolescents with disruptive behaviour disorders, and the interventions to prevent and treat these disorders. John E. Lochman is Professor and Doddridge Saxon Chairholder in Clinical Psychology at The University of Alabama, where he also directs the Center for Prevention of Youth Behavior Problems. He is Editor-in-Chief of the Journal of Abnormal Child Psychology , serves on the Board for Society for Prevention Research, and is President of the American Board for Clinical Child and Adolescent Psychology. His research interests are centred on risk factors, social cognition, and intervention and prevention with aggressive children.