Williams syndrome is a rare neurodevelopmental disorder caused by deletion of approximately 25 genes on chromosome 7q11.23. Children with the syndrome evidence large individual differences in both broad language and reading abilities. Nevertheless, as a group, children with this syndrome show a consistent pattern characterized by relative…

School success in the 21st century requires proficiency with expository discourse--the use and understanding of informative language in spoken and written modalities. This occurs, for example, when high school students read their textbooks and listen to their teachers' lectures, and later are asked to demonstrate their knowledge of this complex…

A study was conducted to test the utility of a protocol, consisting of 30 pragmatic parameters of language, to evaluate conversational speech from 157 subjects in six diagnostic groups. Four distinct profiles emerged separating the diagnostic groups within which differences in the distribution of pragmatic deficits were identified. (Author/KM)