Summarizes the available data on the spontaneous signing of nonverbal mentally handicapped children and discusses possible reasons for the spontaneity. Instructional techniques for promoting spontaneity are outlined, and implications of sign spontaneity for research are considered. (Author/EJS)

Gestural joint attention behaviors, personal pronoun use, and spontaneous communicative behavior were compared in 11 autistic children and 11 children with developmental language delay (DLD). DLD children responded correctly to joint attention interactions more often and their spontaneous gestural behavior was more communicative and…

The history and development of various sign languages in Europe and America are described, and the characteristics of manual communication systems are discussed. Modifications of sign language have been used to communicate with nonvocal austic children, severely language-delayed children, and retarded adults. (CTM)

Motivational factors and unique characteristics of sign language systems are suggested as contributing to the ability of severely dysfunctional nonverbal children to make progress within a manual communication medium. (Author/EJS)

The syndrome of childhood autism is typified by major abnormalities in language development, yet there are few systematic descriptions of autistic children's linguistic systems. This paper represents the beginning of a comprehensive investigation of the language of verbal autistic children and concentrates on comparing the syntax used by ten…

Thirteen institutionalized children from 4-1/2 to 14 years old, diagnosed as autistic, atypical, or childhood schizophrenic, were observed for three years to obtain a detailed description of their speech and language behavior. Case histories were assembled from available medical and psychological data. During a program of experimental relationship…