This paper explores the issues involved in the linguistic characterisation of disordered discourse and the ways in which a Systemic Functional Linguistic framework addresses these issues. For many years, language disorders were described in terms of formal grammars, with "breakdown" discussed in terms of one or more of the traditional levels of…

The study reported here investigated the effects of using props to illustrate the meaning of sentences in a syntactic awareness task in which subjects were required to correct ungrammatical sentences. Children scored significantly higher in the props condition though the proportion of meaning-changing errors to total errors was not significantly…