The dynamics of voiceless sibilant fricative production in children between seven and thirteen years old: an ultrasound and acoustic study

dc.check.date2019-03-19
dc.check.infoAccess to this article is restricted until 6 months after publication by request of the publisher.en
dc.contributor.authorHardcastle, William J.
dc.contributor.authorGibbon, Fiona E.
dc.contributor.authorZharkova, Natalia
dc.contributor.funderEconomic and Social Research Councilen
dc.date.accessioned2018-11-13T13:02:53Z
dc.date.available2018-11-13T13:02:53Z
dc.date.issued2018-09-19
dc.date.updated2018-11-13T12:39:09Z
dc.description.abstractThis study reports on dynamic tongue shape and spectral characteristics of sibilant fricatives /s/ and /ʃ/ in Scottish English speaking children aged between 7 and 13 years old. The sequences /əCa/ and /əCi/ were produced by 40 children, with ten participants in each age group, and two-year intervals between successive groups. Productions of the same sequences by ten adults were used for comparison with the children's data. Quantitative dynamic analyses were carried out on spectral information and on ultrasound imaging data on tongue shape. All age groups differentiated between the two consonants in the fricative centroid and in tongue shape. Vowel-on-consonant effects showed consonant-specific patterns across age groups without a consistent increase or decrease in the extent of coarticulation with increasing age. The extent of discriminability between the two fricatives increased with age on both acoustic and articulatory measures. Younger speakers were generally more variable than older speakers. Complementary findings from the centroid and tongue shape measures suggest that age-related differences are due to the ongoing maturation of controlling the tongue in coordination with other articulators, particularly the jaw, throughout childhood.en
dc.description.sponsorshipEconomic and Social Research Council (ES/K002597/1)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationZharkova, N., Hardcastle, W. J. and Gibbon, F. E. (2018) 'The dynamics of voiceless sibilant fricative production in children between seven and thirteen years old: an ultrasound and acoustic study', Journal of the Acoustical Society of America, 144(3), pp. 1454-1466. doi:10.1121/1.5053585en
dc.identifier.doi10.1121/1.5053585
dc.identifier.endpage1466en
dc.identifier.issn0001-4966
dc.identifier.issued3en
dc.identifier.journaltitleThe Journal of the Acoustical Society of Americaen
dc.identifier.startpage1454en
dc.identifier.urihttps://hdl.handle.net/10468/7106
dc.identifier.volume144en
dc.language.isoenen
dc.publisherAcoustical Society of Americaen
dc.rights© 2018, Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the authors and the Acoustical Society of America. The article appeared in Journal of the Acoustical Society of America and may be found at https://asa.scitation.org/doi/pdf/10.1121/1.5053585?class=pdfen
dc.subjectDynamic tongue shapeen
dc.subjectSibilant fricativesen
dc.subjectCoarticulationen
dc.subjectAge-related differencesen
dc.subjectScottish English speaking childrenen
dc.subjectUltrasound imaging dataen
dc.titleThe dynamics of voiceless sibilant fricative production in children between seven and thirteen years old: an ultrasound and acoustic studyen
dc.typeArticle (peer-reviewed)en
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