Perceptuo-acoustic assessment of prosodic impairment in dysarthria

Kate Bunton, Ray D. Kent, Jane F. Kent, John C. Rosenbek

Research output: Contribution to journalArticle

36 Scopus citations

Abstract

Dysprosody was studied in four groups of male subjects: subjects with amyotrophic lateral sclerosis (ALS) and mild intelligibility impairment, subjects with ALS and a more severe intelligibility loss, subjects with cerebellar disease, and neurologically normal controls. Dysprosody was assessed with perceptual ratings and acoustic measures pertaining to the regulation of duration, f0, and intensity within lone units of conversational samples. Intelligibility reduction and prosodic disturbance were not necessarily equally impaired in all subjects, and it is concluded that these are complementary indices of severity of dysarthria. Compared to the neurologically normal control group, the clinical groups tended to decrease the overall duration of tone units, produce fewer words in a tone unit, and use smaller variations in f0. Recommendations are offered for the assessement of prosody in dysarthria.

Original languageEnglish (US)
Pages (from-to)13-24
Number of pages12
JournalClinical Linguistics and Phonetics
Volume14
Issue number1
DOIs
StatePublished - Jan 1 2000
Externally publishedYes

Keywords

  • Dysarthria
  • Intelligibility
  • Prosody

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

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