If you want to accelerate brain development in children teach them music. From controlled treatment/outcome studies that listening to and playing music is a potent treatment for mental health issues. In fact, research demonstrates that adding music therapy to treatment improves symptoms and social functioning among schizophrenics. Music Therapy has also demonstrated efficacy as an independent treatment for reducing depression, anxiety and chronic pain.

Importantly, music education also appears to accelerate brain development in young children, particularly in the areas of the brain responsible for processing sound, language development, speech perception and reading skills.