The article reviews augmentative and alternative communication symbol classifications reported in the literature over the past decade. The "aided/unaided" dichotomy (based on user production of the symbol) is proposed as the superordinate level of classification, rather than the "static/dynamic" (based on transmission of…

Literature is reviewed on augmentative and alternative communication research and intervention for individuals with severe intellectual disabilities. The review focuses on prerequisites for intervention, symbol systems and sets, computer technology, and teaching strategies. Future research directions are outlined, and clinical and educational…

This article reviews research on the role of symbolic, referent, and instructional variables on the acquisition of augmentative and alternative communication (AAC) symbols by individuals with autism and severe speech and language impairments. Two vignettes illustrate findings of the review. (Contains references.) (Author/DB)