Document Detail

Relationship between speech, oromotor, language and cognitive abilities in children with Down's syndrome.
MedLine Citation:
PMID:  19821789     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Children and young people with Down's syndrome present with deficits in expressive speech and language, accompanied by strengths in vocabulary comprehension compared with non-verbal mental age. Intelligibility is particularly low, but whether speech is delayed or disordered is a controversial topic. Most studies suggest a delay, but no studies explore the relationship between cognitive or language skills and intelligibility. AIMS: This study sought to determine whether severity of speech disorder correlates with language and cognitive level and to classify the types of errors, developmental or non-developmental, that occur in the speech of children and adolescents with Down's syndrome. METHODS & PROCEDURES: Fifteen children and adolescents with Down's syndrome (aged 9-18 years) were recruited. Participants completed a battery of standardized speech, language and cognitive assessments. The phonology assessment was subject to phonological and phonetic analyses. Results from each test were correlated to determine relationships. OUTCOME & RESULTS: Individuals with Down's syndrome present with deficits in receptive and expressive language that are not wholly accounted for by their cognitive delay. Receptive vocabulary is a strength in comparison with expressive and receptive language skills, but it was unclear from the findings whether it is more advanced compared with non-verbal cognitive skills. The majority of speech errors were developmental in nature, but all of the children with Down's syndrome showed at least one atypical or non-developmental speech error. CONCLUSIONS & IMPLICATIONS: Children with Down's syndrome present with speech disorders characterized by atypical, and often unusual, errors alongside many developmental errors. A lack of correlation between speech and cognition or language measures suggests that the speech disorder in Down's syndrome is not simply due to cognitive delay. Better differential diagnosis of speech disorders in Down's syndrome is required, allowing interventions to target the specific disorder in each individual.
Joanne Cleland; Sara Wood; William Hardcastle; Jennifer Wishart; Claire Timmins
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of language & communication disorders / Royal College of Speech & Language Therapists     Volume:  45     ISSN:  1460-6984     ISO Abbreviation:  Int J Lang Commun Disord     Publication Date:    2010 Jan-Feb
Date Detail:
Created Date:  2009-12-16     Completed Date:  2010-04-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9803709     Medline TA:  Int J Lang Commun Disord     Country:  England    
Other Details:
Languages:  eng     Pagination:  83-95     Citation Subset:  IM    
Speech Science Research Centre, Musselburgh, UK.
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MeSH Terms
Child Language*
Cognition Disorders
Down Syndrome*
Language Tests
Motor Activity*
Psychological Tests
Speech Disorders*
Grant Support
G0401388//Medical Research Council

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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