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…

The paper describes the Makaton Vocabulary as an alternative communication mode for children and adults with communication and language difficulties. The language program comprises the following components: a core vocabulary based on concepts/items needed to express essential needs and experiences; the use of signs and/or symbols always associated…

This study, involving 40 preschool children with normal cognitive abilities, determined the effects of initial teaching of semantic elements on compound Blissymbol acquisition, retention, and generalization in a story-telling context. Results indicated that the initial teaching of elements did not contribute to compound acquisition and retention…

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)