Ten children and adolescents with severe mental retardation were assigned in matched pairs to either a lexigram augmentative communication condition (graphic symbols) or a control condition (social stimulation). The three subjects who successfully acquired lexigrams also exhibited changes in attention, intentional communication, and sociability.…

Three papers comment on a paper by Abrahamsen et al (EC 212 728) on concomitants of success in acquiring an augmentative communication system (AAC) by persons with severe mental retardation. Comments focus on design and methodological requirements, principles of AAC, and sequence and process in indirect aspects of communicative gains. (DB)

The onset and maintenance of visual attention to signing was observed in three profoundly deaf children (ages two and three) while interacting with their hearing mothers about a picture story. All children experienced problems with the need to focus simultaneously on the mother's signs and the picture book. Suggestions for developing visual…