Glottal Aerodynamic Measures in Women With Phonotraumatic and Nonphonotraumatic Vocal Hyperfunction

JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH

dc.creatorEspinoza-Catalán, Víctor Manuel
dc.creatorZañartu-Salas, Matías
dc.creatorVan Stan, Jarrad H
dc.creatorMehta, Daryush D
dc.creatorHillman, Robert E
dc.date2021-08-23T22:54:16Z
dc.date2022-07-07T01:35:06Z
dc.date2021-08-23T22:54:16Z
dc.date2022-07-07T01:35:06Z
dc.date2017
dc.date.accessioned2023-08-22T09:41:49Z
dc.date.available2023-08-22T09:41:49Z
dc.identifier1151077
dc.identifier1151077
dc.identifierhttps://hdl.handle.net/10533/251351
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8337275
dc.descriptionPurpose: The purpose of this study was to determine the validity of preliminary reports showing that glottal aerodynamic measures can identify pathophysiological phonatory mechanisms for phonotraumatic and nonphonotraumatic vocal hyperfunction, which are each distinctly different from normal vocal function. Method: Glottal aerodynamic measures (estimates of subglottal air pressure, peak-to-peak airflow, maximum flow declination rate, and open quotient) were obtained noninvasively using a pneumotachograph mask with an intraoral pressure catheter in 16 women with organic vocal fold lesions, 16 women with muscle tension dysphonia, and 2 associated matched control groups with normal voices. Subjects produced /pae/ syllable strings from which glottal airflow was estimated using inverse filtering during /ae/ vowels, and subglottal pressure was estimated during /p/ closures. All measures were normalized for sound pressure level (SPL) and statistically tested for differences between patient and control groups. Results: All SPL-normalized measures were significantly lower in the phonotraumatic group as compared with measures in its control group. For the nonphonotraumatic group, only SPL-normalized subglottal pressure and open quotient were significantly lower than measures in its control group. Conclusions: Results of this study confirm previous hypotheses and preliminary results indicating that SPL-normalized estimates of glottal aerodynamic measures can be used to describe the different pathophysiological phonatory mechanisms associated with phonotraumatic and nonphonotraumatic vocal hyperfunction.
dc.descriptionRegular 2015
dc.descriptionFONDECYT
dc.descriptionFONDECYT
dc.languageeng
dc.relationhandle/10533/111557
dc.relationhandle/10533/111541
dc.relationhandle/10533/108045
dc.relationhttps://doi.org/10.1044/2017_JSLHR-S-16-0337
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rightsinfo:eu-repo/semantics/article
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleGlottal Aerodynamic Measures in Women With Phonotraumatic and Nonphonotraumatic Vocal Hyperfunction
dc.titleJOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH
dc.typeArticulo
dc.typeinfo:eu-repo/semantics/publishedVersion


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