1. Department of Systems Medicine, Unit of Child Neurology and Psychiatry, “Tor Vergata” University of Rome, Rome, Italy
2. Comprehensive Rehabilitation Center, Ctr Asl 8, Cagliari, Italy
3. Department of Experimental Psychology, University of Regensburg, Regensburg, Germany
4. Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, The Netherlands