Perceptual Evaluation of Hypernasality Compared to HONC Measures: The Role of Experience

Laczi, Elizabeth; Sussman, Joan E.; Stathopoulos, Elaine T.; Huber, Jessica E.

doi:10.1597/03-011.1

Cited by 44 publications

(47 citation statements)

References 37 publications

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“…A su vez, al estudiar los fonemas oclusivos entre sí, se encontraron diferencias significativas en los fonemas /p/ y /k/, siendo estos resultados esperables debido a estudios anteriores (16,17) .…”

Section: Discussionunclassified

“…, Kummer (8) , Lohmander-Agerskov (9) , Laczi (16) y Morris (17) , se debe a que no contaban con instrumentos que midieran la presión de aire sonora al momento de la emisión de los fonemas, y los resultados de estos autores percibían a los fonemas oclusivos como los más alterados empíricamente.…”

Section: Discussionunclassified

“…El aerofonoscopio IIc cuenta con una unidad central que es un computador y una sonda constituida por un micrófono unidireccional pequeño, además de dos orificios en su cara superior que se corresponden con las narinas de las fosas nasales de los pacientes. Las investigaciones internacionales realizadas con exámenes convencionales, señalan que los fonemas más alterados en los pacientes fisurados de paladar y velo son los fonemas oclusivos, que se ven más afectados por la baja presión intraoral y en menor grado los fonemas fricativos (5,(7)(8)(9)16) .…”

Section: Introductionunclassified

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Escape de aire nasal de fonemas oclusivos y fonemas fricativos en pacientes portadores de fisura labiovelopalatina unilateral operada

Gallardo

Gómez

2012

Revista Chilena De Fonoaudiología

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RESUMENObjetivo: determinar si existen diferencias en el escape de aire nasal durante la emisión de fonemas oclusivos y fonemas fricativos en pacientes portadores de fisura labiovelopalatina unilateral operada. Material y método: Para la presente investigación se utilizó un instrumento llamado Aerofonoscopio IIc que capta el escape de aire nasal de los pacientes al hablar. El estudio fue realizado en 74 pacientes diagnosticados con fisura labiovelopalatina unilateral operada, con un rango de edad desde los 58 meses (4 años 10 meses) hasta los 540 meses (45 años). Para realizar el análisis comparativo se utilizó la prueba "t" student. Resultados: Se encontraron diferencias estadísticamente significativas en el porcentaje de escape de aire nasal entre fonemas fricativos (52, 22%) y fonemas oclusivos (35,94%). Conclusión: Los fonemas fricativos son los más afectados en portadores de fisura labiovelopalatina. El fonema fricativo más alterado es el fonema /s/. La aerofonoscopía es un examen objetivamente válido para determinar el grado de escape nasal.Palabras claves: Aerofonoscopía, fonemas oclusivos, fonemas fricativos, fisura labiovelopalatina. ABSTRACTObjective. The objective of the present study is to determine whether or not differences in the nasal air escape during the emission of plosive and fricative phonemes in patients with unilateral cleft lip and palate exist. Methods. An aerophonoscope IIc, an instrument which captures the nasal air escape during speech, was used. The study sample comprised 74 patients diagnosed with operated unilateral cleft lip and palate. The age of the participants ranged between 58 (4 years and 10 months) and 540 months (45 years). A t-test for group comparisons was computed for the statistical analysis. Results. Statistically significant differences were found in the percentage of nasal air escape between fricative (52,22%9) and plosive phonemes (35,94%). Conclusion. Fricative phonemes are the most affected ones among patients with unilateral cleft lip and palate. The most affected fricative phoneme is /s/. The aerophonoscopy is an objective and valid test to determine the nasal air escape.

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Section: Discussionunclassified

Section: Introductionunclassified

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Escape de aire nasal de fonemas oclusivos y fonemas fricativos en pacientes portadores de fisura labiovelopalatina unilateral operada

Gallardo

Gómez

2012

Revista Chilena De Fonoaudiología

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“…Over the years perceptual assessment of nasality has constituted to be an indispensable part in speech assessment of individuals with unrepaired and repaired cleft palate [3,4]. In research settings perceptual evaluation has captured reliable evidences in rating resonance changes when the judges are experienced, besides presenting poor intra-judge reliability in clinical setting [5]. However to monitor surgical outcomes and treatment progress incorporating objective repeatable measures must be included in routine assessment protocol.…”

Section: Introductionmentioning

confidence: 99%

Spectral Analysis of Hypernasality in Cleft Palate Children: A PrePost Surgery Comparison

Dodderi

Narra²,

Varghese

et al. 2016

JCDR

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“…Although nasal accelerometry has been used in other measures of VP function (Mra, Sussman, & Fenwick, 1998) and some measures derived from nasal acceleration correlate well with perceptual ratings of hypernasality (Laczi, Sussman, Stathopoulos, & Huber, 2005;Redenbaugh & Reich, 1985), it has not previously been used to detect NAE. To be specific, the proposed measure is based on the energy detected by a nasal accelerometer; thus we will refer to it as the nasal acceleration energy measure, or NAEM.…”

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confidence: 99%

Objective Measure of Nasal Air Emission Using Nasal Accelerometry

Cler

Lien

Braden

et al. 2016

J Speech Lang Hear Res

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,ePurpose: This article describes the development and initial validation of an objective measure of nasal air emission (NAE) using nasal accelerometry. Method: Nasal acceleration and nasal airflow signals were simultaneously recorded while an expert speech language pathologist modeled NAEs at a variety of severity levels. In addition, microphone and nasal accelerometer signals were collected during the production of /pɑpɑpɑpɑ/ speech utterances by 25 children with and without cleft palate. Fourteen inexperienced raters listened to the microphone signals from the pediatric speakers and rated the samples for the severity of NAE using direct magnitude estimation. Mean listener ratings were compared to a novel quantitative measurement of NAE derived from the nasal acceleration signals.Results: Correlation between the nasal acceleration energy measure and the measured nasal airflow was high (r = .87). Correlation between the measure and auditory-perceptual ratings was moderate (r = .49). Conclusion:The measure presented here is quantitative and noninvasive, and the required hardware is inexpensive ($150). Future studies will include speakers with a wider range of NAE severity and etiology, including cleft palate, hearing impairment, or dysarthria. Further development will also involve validation of the measure against airflow measures across subjects.

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Perceptual Evaluation of Hypernasality Compared to HONC Measures: The Role of Experience

Abstract: Hypernasality can be rated in a reliable fashion regardless of listener experience. The correlations between the objective measure of nasalization (HONC) and the perceptual ratings were not as high as expected. Factors contributing to obtaining only moderate correlations will be discussed.

Cited by 44 publications

References 37 publications

Escape de aire nasal de fonemas oclusivos y fonemas fricativos en pacientes portadores de fisura labiovelopalatina unilateral operada

Escape de aire nasal de fonemas oclusivos y fonemas fricativos en pacientes portadores de fisura labiovelopalatina unilateral operada

Spectral Analysis of Hypernasality in Cleft Palate Children: A PrePost Surgery Comparison

Objective Measure of Nasal Air Emission Using Nasal Accelerometry

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