Altogether 58 individuals with a diagnosis of High Functioning Autism (HFA) or Asperger’s Syndrome (AS) were recruited in Finland. Fifty-two children and adolescents aged 8 to 15 years were identified from patient-records at the Oulu University Hospital in 2003. These children and adolescents have been evaluated for HFA/AS at the Oulu University Hospital. In addition, six children (3 boys, 3 girls) 11 years of age were recruited from an epidemiological study conducted in 2001 37.