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A perceptual investigation of prosodic accuracy in children with typical language and specific language impairment |
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Peter Richtsmeier - Purdue University
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Lisa Goffman - Purdue University
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| SRCLD Year: |
2012 |
| Presentation Type: |
Poster Presentation |
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(na) |
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| - Cognition/Language |
| - Language Acquisition |
| - Language Impairment, 0-5 |
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Children with specific language impairment (SLI) struggle more than their typically developing (TD) peers to produce accurate prosodic structures (e.g., weak syllable omission; undifferentiated stressed and unstressed syllables). However, little is known about the acoustic properties of early prosodic structures and how they are instantiated perceptually—especially in children with SLI—thus motivating the present study. Productions of novel words with iambic and trochaic stress patterns were recorded from four- to six-year-old children with SLI and TD, as well as from adults. Subsequently, other adults (n = 12) with phonetic training rated those productions for their prosodic prototypicality. As expected, adults received the highest prototypicality ratings for both iambic and trochaic words. Compared to their TD peers, children with SLI were rated similarly for trochaic words but significantly lower for iambic words. Related effects were observed for analyses of the number of repetitions that raters required and the number of unexpected ratings given (Children with SLI > Children with TD > Adults). This work was supported by NIH/NIDCD R03011898. |
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