Intrinsic and extrinsic timing in stutterers' speech: data and implications.
This study examined interarticulator timing amongst stutterers and non-stutterers from the perspective of extrinsic and intrinsic timing models of speech motor control. Timing relationships were examined for an oral closure task across stress, rate, and vowel differences. Sequential aspects of extri...
| Published in: | Language & Speech Vol. 40; no. 3; pp. 289 - 311 |
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| Format: | research tables/charts Journal Article |
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Sage Publications Inc.
Jul-Sep97
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=107249114&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 107249114 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00238309 3YY jtl: Language & Speech issn: 00238309 maglogo: Y pubinfo: dt: Jul-Sep97 vid: 40 iid: 3 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 107249114 1998022351 10.1177/002383099704000305 NLM9509581 107249114 ppf: 289 ppct: 22 formats: fmt: @attributes: type: P tig: atl: Intrinsic and extrinsic timing in stutterers' speech: data and implications. aug: au: Ward D affil: Department of Linguistic Science, The University of Reading, Reading RG6 6AA, UK. E-mail: llswadav@reading.ac.uk sug: subj: Fluency Disorders Time Factors Acoustics Adult Aged Audiorecording Biophysical Instruments Case Control Studies Descriptive Statistics Human Middle Age One-Way Analysis of Variance Repeated Measures T-Tests Videorecording Adult: 19-44 years Aged: 65+ years Middle Aged: 45-64 years ab: This study examined interarticulator timing amongst stutterers and non-stutterers from the perspective of extrinsic and intrinsic timing models of speech motor control. Timing relationships were examined for an oral closure task across stress, rate, and vowel differences. Sequential aspects of extrinsic timing theories were analyzed by peak velocity sequence profiles of upper lip, lower lip, and jaw, and nonsequential aspects by sequence period (the time period covering all three of the articulator peak velocity onsets times irrespective of sequencing order). Intrinsic timing theory was modeled using phase portrait analyses of the same data. Consistently greater phase angle variability was seen amongst the stutterers, and variability was found to be significantly greater at a faster articulatory rate and when altered stress patterns were required. No group differences were found for peak velocity sequencing, but the (sequence independent) sequence period data somewhat mirrored the phase angle findings. This finding calls into question the notion that phase angle analyses reflect purely intrinsic timing phenomena. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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