Quantitative Assessment of Syllabic Timing Deficits in Ataxic Dysarthria

Bipasha Kashyap, Pubudu N. Pathirana, Malcolm Horne, Laura Power, David Szmulewicz

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

4 Citations (Scopus)


Parametric analysis of Cerebellar Dysarthria (CD) may be valuable and more informative compared to its clinical assessment. A quantifiable estimation of the timing deficits in repeated syllabic utterance is described in the current study. Thirty-five individuals were diagnosed with cerebellar ataxia to varying degrees and twenty-six age-matched healthy controls were recruited. To automatically detect the local maxima of each syllable in the recorded speech files, a topographic prominence incorporated concept is designed. Subsequently, four acoustic features and eight corresponding parametric measurements are extracted to identify articulatory deficits in ataxic dysarthria. A comparative study on the behaviour of these measures for dysarthric and non-dysarthric subjects is presented in this paper. The results are further explored using a dimensionreduction tool (Principal Component Analysis) to emphasize variation and bring out the strongest discriminating patterns in our feature dataset.

Original languageEnglish
Title of host publication40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
EditorsGregg Suaning, Olaf Dossel
Place of PublicationDanvers MA USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9781538636466, 9781538636459
Publication statusPublished - 26 Oct 2018
Externally publishedYes
EventInternational Conference of the IEEE Engineering in Medicine and Biology Society 2018 - Honolulu, United States of America
Duration: 17 Jul 201821 Jul 2018
Conference number: 40th


ConferenceInternational Conference of the IEEE Engineering in Medicine and Biology Society 2018
Abbreviated titleEMBC 2018
CountryUnited States of America
Internet address


  • cerebellar ataxia
  • dysarthria
  • repeated syllable
  • speech disorder
  • topographic prominence

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