Journal article
Pressure-flow relationships during phonation as a function of adduction
Journal of voice, Vol.11(2), pp.187-194
06/1997
DOI: 10.1016/S0892-1997(97)80077-X
PMID: 9181542
Abstract
Pressure-flow relationships were obtained for five excised canine larynges. Simultaneous recordings were made of average subglottal pressure, average air flow, and the electroglottograph at various levels of adduction and vocal fold lengths. The level of adduction was controlled by positioning the arytenoid cartilages via laterally imbedded three-prong attachments and by the use of intra-arytenoid shims. Adduction was quantified by measuring the vocal process gap. Results indicated a linear pressure-flow relationship within the experimental range of phonation for each level of adduction. Differential glottal resistance increased as the vocal process gap was reduced. A model is presented for the differential resistance as a hyperbolic function of vocal process gap. The pressure-flow relationship and the model can be used in computer simulations of speech production and for clinical insight into the aerodynamic function of the human larynx.
Details
- Title: Subtitle
- Pressure-flow relationships during phonation as a function of adduction
- Creators
- F Alipour - Department of Speech Pathology and Audiology, Wendell Johnson Speech and Hearing Center, University of Iowa, Iowa City 52242-1012, USAR C SchererE Finnegan
- Resource Type
- Journal article
- Publication Details
- Journal of voice, Vol.11(2), pp.187-194
- Publisher
- United States
- DOI
- 10.1016/S0892-1997(97)80077-X
- PMID
- 9181542
- ISSN
- 0892-1997
- eISSN
- 1873-4588
- Grant note
- 5 R01 DC00831-04 / NIDCD NIH HHS
- Language
- English
- Date published
- 06/1997
- Academic Unit
- Communication Sciences and Disorders
- Record Identifier
- 9984002448102771
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