Segmental level analysis of laryngeal function in persons with motor speech disorders

Kate Bunton, Gary Weismer

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Laryngeal behavior for segmental function is often disturbed in motor speech disorders. Loss of voicing contrasts has been shown to significantly contribute to speech intelligibility deficits. The present study was designed to examine two commonly erred laryngeal contrasts, the word-initial voiced-voiceless and glottal-null contrasts using acoustic analysis techniques. Acoustic measures were compared to expectations for the contrast based on data in the literature as well as listeners' perception of the token. Findings indicate a mismatch between acoustic data and both expectations for the contrasts and listener perception. There is some indication that changes in laryngeal segmental function are related to aging in general and may be exaggerated in persons with motor speech disorders. Copyright

Original languageEnglish (US)
Pages (from-to)223-239
Number of pages17
JournalFolia Phoniatrica et Logopaedica
Issue number5
StatePublished - 2002


  • Laryngeal function
  • Motor speech disorders
  • Speech acoustics
  • Speech intelligibility
  • Speech perception

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing
  • LPN and LVN


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