Abstract
Augmentative and alternative communication (AAC) techniques have been used in aphasia treatment for the past two decades. This paper examines the multiple ways in which non-speech modes have been applied—as an alternate means of communication, a means of facilitating the re-acquisition of spoken language skills, and to enhance specific language and communication functions—and the results that have been realized. The assumption that AAC techniques offer minimal assistance to the adult with language impairment is critically examined. Future directions for clinical practice, research and technology are discussed.