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ERIC Number: EJ838126
Record Type: Journal
Publication Date: 2009-Apr
Pages: 16
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-1092-4388
Backward and Simultaneous Masking in Children with Grammatical Specific Language Impairment: No Simple Link between Auditory and Language Abilities
Rosen, Stuart; Adlard, Alan; van der Lely, Heather K. J.
Journal of Speech, Language, and Hearing Research, v52 n2 p396-411 Apr 2009
Purpose: We investigated claims that specific language impairment (SLI) typically arises from nonspeech auditory deficits by measuring tone-in-noise thresholds in a relatively homogeneous SLI subgroup exhibiting a primary deficit restricted to grammar (Grammatical[G]-SLI). Method: Fourteen children (mostly teenagers) with G-SLI were compared to age-, vocabulary-, and grammar-matched control children on their abilities to detect a brief tone in quiet and in the presence of a masking noise. The tone occurred either simultaneously with the noise or just preceding it (backward masking). Maskers with and without a spectral notch allowed estimates of frequency selectivity. Results: Group thresholds for the G-SLI children were never worse than those obtained for younger controls but were higher in both backward and simultaneous masking than in age-matched controls. However, more than half of the G-SLI group (8/14) were within age-appropriate limits for all thresholds. Frequency selectivity in the G-SLI group was normal. Within control and G-SLI groups, no threshold correlated with measures of vocabulary, grammar, or phonology. Nor did the language deficit in the G-SLI children vary with the presence or absence of auditory deficits. Conclusion: The auditory processing deficits sometimes found in children with SLI appear unlikely to cause or maintain the language impairment.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A