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Perception of transient nonspeech stimuli is normal in specific language impairment: evidence from glide discrimination
Abstract: Twenty 9- to 12-year-olds with specific language impairment (SLI) were compared with 18 age-matched controls on auditory discrimination tasks, using a three-interval, two-alternative forced-choice format. The first task used minimal word pairs in silence and in noise. Nonspeech tasks involved discriminating direction of frequency glides and had two versions: (a) the glide moved from 500 to 1500 Hz, and duration was adaptively decreased; (b) all glides lasted 250 ms, and the frequency range was adaptively modified until a threshold was reached. Control and SLI groups did not differ on the glide tasks. Around half the children in both groups accurately discriminated 20 ms glides. There was a small but significant group difference on the speech-in-noise task, and scores were weakly related to literacy level. Perception of brief, transient, nonspeech stimuli is not abnormal in the majority of school-aged children with SLI. ; Citation: Bishop, D. V. M., Adams, C. V., Nation, K. & Rosen, S. (2005). Perception of transient nonspeech stimuli is normal in specific language impairment: evidence from glide discrimination. Applied Psycholinguistics, 26 (2), 175-194. Published by Cambridge University Press (http://journals.cambridge.org/action/displayJournal?jid=aps)
Keyword: Experimental psychology; glide discrimination; specific language impairment; speech perception
URL: http://ora.ouls.ox.ac.uk:8081/10030/951
http://journals.cambridge.org/action/displayJournal?jid=aps
https://doi.org/10.1017.S0142716405050137
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