Variability in apraxia of speech: a perceptual, acoustic, and kinematic analysis of stop consonants.
This investigation was designed to examine articulatory variability over time in an individual with apraxia of speech (AOS) and aphasia. Speech recordings were made on three occasions within an 8-day period. The second and third recordings were conducted 1 day and 1 week following the initial sessio...
| Publicado en: | Journal of Medical Speech-Language Pathology Vol. 15; no. 3; pp. 223 - 243 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Cengage Delmar Learning
2007 Sep
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105937580&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105937580 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10651438 H23 jtl: Journal of Medical Speech-Language Pathology issn: 10651438 maglogo: N pubinfo: dt: 2007 Sep vid: 15 iid: 3 pid: 79059 pub: Cengage Delmar Learning place: Brandon, Mississippi artinfo: ui: 105937580 105937580 2009704871 105937580 ppf: 223 ppct: 20 formats: tig: atl: Variability in apraxia of speech: a perceptual, acoustic, and kinematic analysis of stop consonants. aug: au: Mauszycki SC Dromey C Wambaugh JL affil: VA Salt Lake City Healthcare System, Salt Lake City, UT; Passbrat@aol.com sug: subj: Apraxia Diagnosis Speech Disorders Diagnosis Speech Production Measurement Adult Brain Injuries Complications Case Control Studies Descriptive Statistics Funding Source Kinematics Male Neuropsychological Tests Pearson's Correlation Coefficient Phonetics Speech Acoustics Evaluation Speech and Language Assessment Methods Speech Sample Voice Onset Time Human Adult: 19-44 years Male ab: This investigation was designed to examine articulatory variability over time in an individual with apraxia of speech (AOS) and aphasia. Speech recordings were made on three occasions within an 8-day period. The second and third recordings were conducted 1 day and 1 week following the initial session, respectively. Initial stop consonant productions were examined via perceptual, acoustic, and kinematic analyses. Perceptual analyses revealed that voicing errors were the predominant type of error across sampling times. Sound errors were not predictable for specific words within a sampling session, but were relatively invariable by sound. The AOS speaker produced more variable voice onset times (VOTs) for /p, d, t/ and longer total word durations (TWD) across all sounds in comparison to a control speaker. Lower lip plus jaw movement data revealed increased displacement and velocity for alveolar stops and variable displacement and reduced velocity for bilabial stops for the AOS speaker when compared to the control speaker. For bilabial stops, spatiotemporal index and labial coordination were more variable for the AOS speaker. Extra velocity peaks were found across all sounds produced by the speaker with AOS. Acoustic and kinematic analyses revealed patterns across sounds; however; some distinct patterns were observed for individual sounds. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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