| The effects of age and infant hearing status on maternal use of prosodic cues for clause boundaries in speech. | |
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MedLine Citation:
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PMID: 20966387 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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PURPOSE: The present study examined the effects of age and hearing status of a child on maternal use of pitch change, preboundary vowel lengthening, and pause duration, all of which are prosodic cues correlated with clause boundaries in infant-directed speech. METHOD: Mothers' speech to infants with normal hearing (NH; n = 18), infants who are profoundly deaf with a cochlear implant (HI; n = 9), and an adult experimenter were recorded at 2 time periods separated by 6 months. NH infants were matched to HI infants by chronological age or hearing experience. Fundamental frequency of pre- and postboundary vowels, vowel duration, and pause duration between utterances was measured. RESULTS: Results demonstrated that mothers (a) exaggerated prosodic characteristics in infant-directed speech regardless of infants' hearing status; (b) tailored preboundary vowel lengthening to infants' hearing experience rather than to chronological age; and (c) decreased exaggeration of pause duration over time. CONCLUSIONS: The results suggest that acoustic cues correlated with clause boundaries are available in maternal speech to HI infants. Their exaggeration relative to adult-directed speech suggests that mothers' use of infant-directed speech is a natural behavior regardless of infant hearing status. Finally, mothers modify speech prosody according to their children's age and hearing experience. |
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Authors:
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Maria V Kondaurova; Tonya R Bergeson |
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Publication Detail:
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Type: Journal Article Date: 2010-10-21 |
Journal Detail:
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Title: Journal of speech, language, and hearing research : JSLHR Volume: 54 ISSN: 1558-9102 ISO Abbreviation: J. Speech Lang. Hear. Res. Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-06-02 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9705610 Medline TA: J Speech Lang Hear Res Country: United States |
Other Details:
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Languages: eng Pagination: 740-54 Citation Subset: IM |
Affiliation:
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Correspondence to Maria V. Kondaurova: mkondaur@iupui.edu. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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