Voice perturbations of children with perceived nasality and hoarseness

Cycle-to-cycle variations in voice fundamental frequency (jitter) and amplitude (shimmer) were derived by electroglottography for 10 children with velopharyngeal insufficiency (VPI). Jitter was found to be positively correlated with ratings of perceived nasality, whereas shimmer was found to be posi...

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Veröffentlicht in:	The Cleft palate journal 1989-07, Vol.26 (3), p.226-31; discussion 231-2
Hauptverfasser:	Zajac, D J, Linville, R N
Format:	Artikel
Sprache:	eng
Schlagworte:	Child Computers Dentistry Electrodiagnosis - instrumentation Female Glottis Hoarseness - complications Hoarseness - physiopathology Humans Male Phonetics Speech Disorders - complications Speech Disorders - physiopathology Speech Perception Velopharyngeal Insufficiency - complications Velopharyngeal Insufficiency - physiopathology Voice Disorders - etiology Voice Disorders - physiopathology
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Zusammenfassung:	Cycle-to-cycle variations in voice fundamental frequency (jitter) and amplitude (shimmer) were derived by electroglottography for 10 children with velopharyngeal insufficiency (VPI). Jitter was found to be positively correlated with ratings of perceived nasality, whereas shimmer was found to be positively correlated with ratings of perceived hoarseness. Theoretic implications for a regulatory model of speech aerodynamics are discussed. Additionally, clinical applications, in terms of using electroglottography as a supplemental assessment procedure, are suggested.
ISSN:	0009-8701