The study: James Hudziak and his colleagues analyzed the brain scans of 232 children ages 6 to 18, looking for relationships between cortical thickness and musical training. Previous studies the team had performed revealed that anxiety, depression, attention problems and aggression correspond with changes to cortical thickness. Hudziak and his team sought to discover whether a “positive activity” like musical training could affect the opposite changes in young minds.
“What we found was the more a child trained on an instrument,” Hudziak told the Washington Post, “it accelerated cortical organization in attention skill, anxiety management and emotional control.”
The study found increased thickness in parts of the brain responsible for executive functioning, which includes working memory, attentional control and organizational skills. In short, music actually helped kids become more well-rounded. Not only that, they believe that musical training could serve as a powerful treatment of cognitive disorders like ADHD.