Fluvoxamine and Sertraline in Childhood Autism - Does SSRI Therapy Improve Behaviour and/or Mood?

The purpose of this study is to determine if fluvoxamine or sertraline reduce the fequency or severity of aggressive behaviour, obsessive symptoms, or anxiety in young children with autism. The within-patient variability in this patient population using standard neuropsychological instruments will also be determined and a predictor model for SSRI responsitivity based on baseline neuropsychological testing will be developed.