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Phonological development in toddlers with Down syndrome and mixed-etiology developmental delays
Sokol, Shari Baron
Sokol, Shari Baron
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Abstract
Consonant inventory and syllable complexity measures were taken at two points from 50 children with developmental delays. Twenty-six children had Down syndrome (DS). Canonical and noncanonical words and utterances, and the initial- and final-consonant inventory were coded during two 15-minute videotaped conversational samples with a parent at two points in time, 18 months apart. For all measures at Time 1 (age ~25 months), the children with DS performed equally well or better than their peers without DS. The reverse was true for all measures at Time 2 (~ 43 months). Phonological skills in young children with DS are delayed beyond the level predictable by mental age during early lexical development. A clear relationship between slow phonological growth and slow lexical growth at the period of "first word" acquisition was established for children with DS.
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Date
2008-01-01
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University of Kansas
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Keywords
Health sciences, Speech pathology, Child development, Down syndrome, Phonology, Speech development