Considerable published, peer-reviewed studies exist, and APA (Psychologists) now accepts Neurofeedback as an efficacious treatment, according to a psychologist friend. I am a therapist working in a large public mental health clinic where we have been using this for over 7 years. Most kids have greatly reduced or eliminated meds if they were on them. Besides ADHD, we've had great success with a number of learning disabilities and mood/anxiety disorders. The current research on autism is showing dramatic improvements. Once I saw the power of this intervention -- with no negative effects in my experience -- I knew this had permanently changed my practice. You might enjoy reading Healing Young Brains.