Communication Unbound: Autism and Praxis

This paper provides a review of studies conducted on linguistic functioning in autistic children, within the framework developed in normal language acquisition research. Despite certain methodological weaknesses, the research consistently shows that phonological and syntactic development follow the same course as in normal children and in other disordered groups, though at a slowed rate, while semantic and pragmatic functioning may be specially deficient in autism. These findings are related to other recent studies on the relative independence of different aspects of language.

The characteristics of language and other forms of communication in normal and autistic children are described. The main basis of comparison is the extent to which each group can comprehend and use spoken and nonspoken language and also develop inner language. It is suggested that the central problem in early childhood autism is an impairment of complex symbolic function affecting all forms of communication. This problem can occur on its own, but, in the majority of cases, it is associated with other impairments of the central nervous system. The relationship of early childhood autism to mental retardation and to normal intellectual function is discussed.