Magnetoencephalographic pattern of epileptiform activity in children with early-onset autism spectrum disorders.

Objective: To provide further data around magnetoencephalographic (MEG) findings in early-onset autism spectrum disorders (ASD).

Methods: Thirty-six children (mean age 7 years) diagnosed of PDD (DSM-IV, ICD-10) were studied. There were 22 children with autistic disorder, 9 with Asperger's syndrome, and 5 with pervasive developmental disorder not otherwise specified (PDD-NOS).