SPECIFIC LANGUAGE IMPAIRMENT IN CHILDREN - RESEARCH FINDINGS AND THEIR THERAPEUTIC IMPLICATIONS

This paper reports the findings from a research project investigating a subgroup of specifically language-impaired (SLI) children. The subgr oup of SLI children consists of those characterised by persisting gram matical deficits in comprehension and expression of language. The pape r summarises the findings in order to highlight the therapeutic implic ations from the investigations. The main focus of the investigations w as to characterise the SLI children's grammatical knowledge of sentenc e comprehension, specifically their ability to learn the semantic and syntactic properties of verbs. In addition, an investigation of verbal short-term memory (STM) was carried out, and an analysis was undertak en of the expressive morpho-grammatical characteristics of the childre n. The investigations revealed that the SLI children did not differ in their STM abilities from children carefully matched on language abili ties. Thus, the data do not provide support for therapy directed at in creasing auditory memory with an aim of improving expression or compre hension of sentences. It is hypothesised that the SLI children have a deficit in syntactic representations and are unable to specify the str uctural relationships between constituents in syntax. The implications of the study are that this subgroup of SLI children may be unable to use syntactic cues to help learn semantic properties of verbs, but sem antic cues may facilitate learning the syntactic properties of verbs.