Objective Measure of Nasal Air Emission Using Nasal Accelerometry

Autor/inn/en	Cler, Meredith J.; Lien, Yu-An, S.; Braden, Maia N.; Mittleman, Talia; Downing, Kerri; Stepp, Cara, E.
Titel	Objective Measure of Nasal Air Emission Using Nasal Accelerometry
Quelle	In: Journal of Speech, Language, and Hearing Research, 59 (2016) 5, S.1018-1024 (7 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/2016_JSLHR-S-15-0407
Schlagwörter	Test Construction; Measurement Equipment; Human Body; Speech Language Pathology; Children; Physical Disabilities; Speech Impairments; Measurement Techniques; Statistical Analysis; Correlation; Auditory Perception + Suchen Sie Ihr Suchwort? Testaufbau; Messinstrument; Menschlicher Körper; Child; Kind; Kinder; Physical handicap; Körperbehinderung; Speech impairment; Speech handicap; Speech handicaps; Language handicps; Language impairments; Sprachbehinderung; Messtechnik; Statistische Analyse; Korrelation; Auditive Wahrnehmung; Akustische Wahrnehmung; Akustik
Abstract	Purpose: 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 /p?p?p?p?/ 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 = 0.87). Correlation between the measure and auditory-perceptual ratings was moderate (r = 0.49). 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. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01