Acoustic and perceptual comparison of chronic and incipient spastic dysphonia

Virginia I. Wolfe*, David L. Eatusnik, Howard Feldman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Vocal symptoms of patients with chronic and incipient spastic dysphonia were compared on a number of acoustic and perceptual parameters. Patients with incipient spastic dysphonia displayed less severe strain-strangle pronation, effort, rhythm, and stress. Harshness was die only perceptual parameter on which incipient spastic dysphonics were rated higher than chronic spastic dysphonics. Changes in the acoustic measures of laryngealiza-tion, harmonic change, mean vowel duration, and duration ratio between stressed and unstressed vowels accompanied changes in listeners' perception of strain-strangle' phonation and effort. The variation in acoustic characteristics such as laryngealization and harmonic change as well as normal phonation indicated that both groups were characterized by a variety of phonatory modes.

Original languageEnglish (US)
Pages (from-to)1478-1486
Number of pages9
JournalLaryngoscope
Volume89
Issue number9
DOIs
StatePublished - Jan 1 1979

ASJC Scopus subject areas

  • Otorhinolaryngology

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