Journal
INTERNATIONAL JOURNAL OF PEDIATRIC OTORHINOLARYNGOLOGY
Volume 78, Issue 2, Pages 253-263Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijporl.2013.11.017
Keywords
Children; Cochlear implants; Language impairment; Autism spectrum disorder; Lexical and semantic ability; Picture naming
Categories
Funding
- Karolinska Institutet
- Sunnerdahls Handikappfond
- Stingerfonden
- Aina Borjesonfonden
- HEAD Graduate School (Linnaeus HEAD, Linkoping University)
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Objective: Lexical-semantic ability was investigated among children aged 6-9 years with cochlear implants (CI) and compared to clinical groups of children with language impairment (LI) and autism spectrum disorder (ASD) as well as to age-matched children with normal hearing (NH). In addition, the influence of age at implantation on lexical-semantic ability was investigated among children with Cl. Methods: 97 children divided into four groups participated, CI (n = 34), LI (n = 12), ASD (n = 12), and NH (n = 39). A battery of tests, including picture naming, receptive vocabulary and knowledge of semantic features, was used for assessment. A semantic response analysis of the erroneous responses on the picture-naming test was also performed. Results: The group of children with Cl exhibited a naming ability comparable to that of the age-matched children with NH, and they also possessed a relevant semantic knowledge of certain words that they were unable to name correctly. Children with CI had a significantly better understanding of words compared to the children with LI and ASD, but a worse understanding than those with NH. The significant differences between groups remained after controlling for age and non-verbal cognitive ability. Conclusions: The children with Cl demonstrated lexical-semantic abilities comparable to age-matched children with NH, while children with LI and ASD had a more atypical lexical-semantic profile and poorer sizes of expressive and receptive vocabularies. Dissimilar causes of neurodevelopmental processes seemingly affected lexical-semantic abilities in different ways in the clinical groups. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
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