Modeling fundamental frequency dynamics in hypokinetic dysarthria

Mahsa Sadat Elyasi Langarani, Jan Van Santen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

Hypokinetic dysarthria (Hd), which often accompanies Parkinson's Disease (PD), is characterized by hypernasality and by compromised phonation, prosody, and articulation. This paper proposes automated methods for detection of Hd. Whereas most such studies focus on measures of phonation, this paper focuses on prosody, specifically on fundamental frequency (F0) dynamics. Prosody in Hd is clinically described as involving monopitch, which has been confirmed in numerous studies reporting reduced within-utterance pitch variability. We show that a new measure of F0 dynamics, based on a superpositional pitch model that decomposes the F0 contour into a declining phrase curve and (generally, single-peaked) accent curves, performs more accurate Hd vs. Control classification than simpler versions of the model or than conventional variability statistics.

Original languageEnglish (US)
Title of host publication2014 IEEE Workshop on Spoken Language Technology, SLT 2014 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages272-276
Number of pages5
ISBN (Electronic)9781479971299
DOIs
StatePublished - Apr 1 2014
Event2014 IEEE Workshop on Spoken Language Technology, SLT 2014 - South Lake Tahoe, United States
Duration: Dec 7 2014Dec 10 2014

Publication series

Name2014 IEEE Workshop on Spoken Language Technology, SLT 2014 - Proceedings

Other

Other2014 IEEE Workshop on Spoken Language Technology, SLT 2014
CountryUnited States
CitySouth Lake Tahoe
Period12/7/1412/10/14

Keywords

  • Hypokinetic dysarthria
  • Parkinson's Disease
  • Pitch decomposition

ASJC Scopus subject areas

  • Computer Science Applications
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence
  • Language and Linguistics

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  • Cite this

    Langarani, M. S. E., & Van Santen, J. (2014). Modeling fundamental frequency dynamics in hypokinetic dysarthria. In 2014 IEEE Workshop on Spoken Language Technology, SLT 2014 - Proceedings (pp. 272-276). [7078586] (2014 IEEE Workshop on Spoken Language Technology, SLT 2014 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SLT.2014.7078586