AAC can benefit any child working on communication skills. It's definitely a beneficial tool to use in treatment with CAS. Oftentimes we have children with excellent receptive language skill that have a LOT to say, and their motor planning difficulties prevent them from even basic communication. Implementing AAC in sessions and in the community provides opportunities for a child to get their messages across successfully with reduced frustration. Less frustration typically leads to more attempts at communication, and ultimately better progress!