Auditory Processing in Specific Language Impairment (SLI): Relations With the Perception of Lexical and Phrasal Stress.
Purpose: We investigated whether impaired acoustic processing is a factor in developmental language disorders. The amplitude envelope of the speech signal is known to be important in language processing. We examined whether impaired perception of amplitude envelope rise time is related to impaired p...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 58; no. 4; pp. 1292 - 1306 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Aug2015
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=109039497&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 109039497 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Aug2015 vid: 58 iid: 4 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 109039497 10.1044/2015_JSLHR-L-13-0306 ppf: 1292 ppct: 14 formats: fmt: @attributes: type: P size: 684KB tig: atl: Auditory Processing in Specific Language Impairment (SLI): Relations With the Perception of Lexical and Phrasal Stress. aug: au: Richards, Susan Goswami, Usha affil: Centre for Neuroscience in Education, University of Cambridge, United Kingdom su: Psycholinguistics Case-control method Statistical correlation Experimental design Language disorders in children Psychoacoustics Regression analysis Research funding Physiological aspects of speech Speech therapists Statistics T-test (Statistics) Data analysis Phonological awareness Data analysis software Descriptive statistics Mann Whitney U Test sug: subj: Psycholinguistics Case-control method Offices of Physical, Occupational and Speech Therapists, and Audiologists Statistical correlation Experimental design Language disorders in children Psychoacoustics Regression analysis Research funding Physiological aspects of speech Speech therapists Statistics T-test (Statistics) Data analysis Phonological awareness Data analysis software Descriptive statistics Mann Whitney U Test ab: Purpose: We investigated whether impaired acoustic processing is a factor in developmental language disorders. The amplitude envelope of the speech signal is known to be important in language processing. We examined whether impaired perception of amplitude envelope rise time is related to impaired perception of lexical and phrasal stress in children with specific language impairment (SLI). Method: Twenty-two children aged between 8 and 12 years participated in this study. Twelve had SLI; 10 were typically developing controls. All children completed psychoacoustic tasks measuring rise time, intensity, frequency, and duration discrimination. They also completed 2 linguistic stress tasks measuring lexical and phrasal stress perception. Results: The SLI group scored significantly below the typically developing controls on both stress perception tasks. Performance on stress tasks correlated with individual differences in auditory sensitivity. Rise time and frequency thresholds accounted for the most unique variance. Digit Span also contributed to task success for the SLI group. Conclusions: The SLI group had difficulties with both acoustic and stress perception tasks. Our data suggest that poor sensitivity to amplitude rise time and sound frequency significantly contributes to the stress perception skills of children with SLI. Other cognitive factors such as phonological memory are also implicated. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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