The literature on symbolic forms of communication was reviewed, and an experimental program was designed to teach a single set of vocabulary to a group of four institutionalized profoundly retarded blind/mute adults through the use of gestures. Literature about deaf/blind persons suggested the use of coactive movement techniques and facilitation…

Twenty-one nonverbal autistic children, 4- to 9-years-old, with language ages of 4- to 24-months, participated in the communication learning program from 1 to 3 years. Simultaneous verbal and manual signs were chosen as the communications mode. The children initially displayed infrequent, unrecognizable vocalizations (Screeches, or vocal…