Voice and fluency changes as a function of speech task and deep brain stimulation

Diana Van Lancker Sidtis, Tiffany Rogers, Violette Godier, Michele Tagliati, John J. Sidtis

Research output: Contribution to journalArticle

Abstract

Purpose: Speaking, which naturally occurs in different modes or "tasks" such as conversation and repetition, relies on intact basal ganglia nuclei. Recent studies suggest that voice and fluency parameters are differentially affected by speech task. In this study, the authors examine the effects of subcortical functionality on voice and fluency, comparing measures obtained from spontaneous and matched repeated speech samples. Method: Subjects with Parkinson's disease who were being treated with bilateral deep brain stimulation (DBS) of the subthalamic nuclei were tested with stimulators ON and OFF. Results: The study found that a voice measure, harmonic to noise ratio, is improved in repetition and in the DBS-ON condition and that dysfluencies are more plentiful in conversation with little or variable influence of DBS condition. Conclusions: These findings suggest that voice and fluency are differentially affected by DBS treatment and that task conditions, interacting with subcortical functionality, influence motor speech performance.

Original languageEnglish (US)
Pages (from-to)1167-1177
Number of pages11
JournalJournal of Speech, Language, and Hearing Research
Volume53
Issue number5
DOIs
StatePublished - Oct 1 2010

Fingerprint

Deep Brain Stimulation
brain
Basal Ganglia
functionality
conversation
Subthalamic Nucleus
Parkinson Disease
Noise
speaking
Disease
Fluency
performance
Functionality
Nucleus
Therapeutics

Keywords

  • Deep brain stimulation
  • Motor speech disorders
  • Parkinson's disease
  • Speech tasks
  • Voice

ASJC Scopus subject areas

  • Speech and Hearing
  • Medicine(all)

Cite this

Voice and fluency changes as a function of speech task and deep brain stimulation. / Van Lancker Sidtis, Diana; Rogers, Tiffany; Godier, Violette; Tagliati, Michele; Sidtis, John J.

In: Journal of Speech, Language, and Hearing Research, Vol. 53, No. 5, 01.10.2010, p. 1167-1177.

Research output: Contribution to journalArticle

Van Lancker Sidtis, Diana ; Rogers, Tiffany ; Godier, Violette ; Tagliati, Michele ; Sidtis, John J. / Voice and fluency changes as a function of speech task and deep brain stimulation. In: Journal of Speech, Language, and Hearing Research. 2010 ; Vol. 53, No. 5. pp. 1167-1177.
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