Perception of Wet Vocal Quality in Identifying Penetration/Aspiration during Swallowing

Autor/inn/en	Groves-Wright, Kathy Jean; Boyce, Suzanne; Kelchner, Lisa
Titel	Perception of Wet Vocal Quality in Identifying Penetration/Aspiration during Swallowing
Quelle	In: Journal of Speech, Language, and Hearing Research, 53 (2010) 3, S.620-632 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2009/08-0246)
Schlagwörter	Physiology; Human Body; Perception; Health Personnel; Interrater Reliability + Suchen Sie Ihr Suchwort? Physiologie; Menschlicher Körper; Wahrnehmung; Medizinisches Personal; Interrater-Reliabilität
Abstract	Purpose: In the present study, the authors investigated the association between wet vocal quality (WVQ) and prandial material in the larynx during phonation. The presence of such material is indicative of oropharyngeal dysphagia and results from entry of material into the laryngeal vestibule during swallowing. The primary aim of the study was to determine whether clinicians reliably perceive WVQ during phonation when prandial material is in the larynx. Method: Seventy-eight subjects underwent videofluoroscopic swallow study, and simultaneous recording of time-linked videofluoroscopic and acoustic data was conducted during postswallow phonation. Experienced dysphagia clinicians then rated randomized audio samples for presence or absence of WVQ. Results: WVQ is not reliably perceived by clinicians when material is present in the larynx in the region of the glottis during phonation, and there is a high degree of interrater variability for perceptual judgments of wetness. Conclusions: Material in the larynx during phonation may result in multiple voice quality percepts, and even experienced clinicians may not be adept at identifying the perceptual consequences of this. Observation of laryngeal physiology during voicing when material is in the larynx using vocal tract imaging can improve reliability in the identification of wet vocal quality. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10