1. Tapio T. Korhonen, PhD, is a clinical neuropsychologist at the Child Psychiatric Department of the University of Turku and senior researcher at the Department of Psychology of the University of Turku. His research focuses on learning disabilities and attention disorders in children. Address: Tapio T. Korhonen, Department of Child Psychiatry, University of Turku, F1N-20520 Turku, Finland.