1995
DOI: 10.1044/jshr.3804.783
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Variations Across Time in Acoustic and Electroglottographic Measures of Phonatory Function in Women With and Without Vocal Nodules

Abstract: The purpose of this investigation was to identify variations over time in phonatory function of women with and without vocal nodules using acoustic and electroglottographic measures. Subjects were 10 women with vocal nodules (mean age=22.1, range=19–25) and 10 women with healthy larynges (mean age=25.0, range=18–32). Electroglottographic and audio recordings of speech were obtained for each subject over 3 consecutive days at three target times: morning, afternoon, and evening. Estimates of fundamental frequenc… Show more

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Cited by 21 publications
(14 citation statements)
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“…These findings support previous research suggesting that fundamental frequency is a stable measure 25,55 of vocal functioning over the course of the day, and counter arguments made by others that show significant changes in f 0 are evident in healthy adults over the course of a day. 30,56 For measures of timing, the extemporaneous speech task was the least stable stimulus over the course of all stability experiments, with a positive relationship evident between the length of time between recordings and the level of instability. The authors suggest that a combination of sample length and predictability of content plays an important role in shaping acoustic stability.…”
Section: Discussionmentioning
confidence: 99%
“…These findings support previous research suggesting that fundamental frequency is a stable measure 25,55 of vocal functioning over the course of the day, and counter arguments made by others that show significant changes in f 0 are evident in healthy adults over the course of a day. 30,56 For measures of timing, the extemporaneous speech task was the least stable stimulus over the course of all stability experiments, with a positive relationship evident between the length of time between recordings and the level of instability. The authors suggest that a combination of sample length and predictability of content plays an important role in shaping acoustic stability.…”
Section: Discussionmentioning
confidence: 99%
“…Pesquisas vêm demonstrando que a função fonatória pode ter modificações tanto ao longo da emissão quanto em diferentes momentos do dia e também em épocas diferentes, sugerindo a necessidade de se realizar várias gravações ao longo do dia e em dias diferentes, para se obter dados que representem a voz do indivíduo, principalmente, quando a emissão vocal do sujeito é disfônica (3,(17)(18)(19) .…”
Section: Discussionunclassified
“…Outro estudo teve como objetivo identificar as variações ao longo do tempo em função fonatória das mulheres com e sem nódulo vocal por meio de medidas acústicas e eletroglotográficas. As mulheres com nódulos vocais demonstraram menor relação entre a fase de fechamento e abertura da prega vocal quando comparada ao grupo controle 17 .…”
Section: Figura 1 -Forma Do Traçado Eletroglotográfico De Ambos Os Grunclassified
“…Alguns estudos mostraram diferença significante entre as medidas eletroglotográficas em mulheres com e sem nódulos vocais como, por exemplo, menor valor de quociente de contato em mulheres com tais nódulos 6,15,16 . Outro estudo observou que mulheres com nódulos vocais demonstraram menor relação entre a fase de fechamento e abertura da prega vocal quando comparada ao grupo de mulheres sem alteração laríngea 17 . Há estudos que não observaram diferença significativa na eletroglotografia em professoras com e sem queixa vocal e/ou laríngea, porém essas não apresentavam diagnóstico laríngeo prévio 18,19 .…”
Section: Introductionunclassified