A1 Refereed original research article in a scientific journal

Prosodic features in Finnish-speaking adults with Parkinson's disease




AuthorsPenttilä Nelly, Tavi Lauri, Hyppönen Marianne, Rontu Katariina, Rantala Leena, Werner Stefan

PublisherTAYLOR & FRANCIS INC

Publication year2022

JournalClinical Linguistics & Phonetics

Journal name in sourceCLINICAL LINGUISTICS & PHONETICS

Journal acronymCLIN LINGUIST PHONET

Number of pages16

ISSN0269-9206

eISSN1464-5076

DOIhttps://doi.org/10.1080/02699206.2022.2081612

Web address https://www.tandfonline.com/doi/full/10.1080/02699206.2022.2081612

Self-archived copy’s web addresshttps://research.utu.fi/converis/portal/detail/Publication/176064659


Abstract

The aim of this study was to assess prosodic features in Finnish speakers with (n = 16) and without (n = 20) Parkinson’s disease (PD), as there are no published studies to date of prosodic features in Finnish speakers with PD. Chosen metrics were articulation rate (syllables/second), pitch (mean F0) and pitch variability (standard deviation F0), energy proportion below 1 kHz (epb1kHz), normalised pairwise variability index (nPVI), and a novel syllabic prosody index (SPI). Four statistically significant results were found: (1) energy was distributed more to lower frequencies in speakers with PD compared to control speakers, (2) male PD speakers had higher pitch and (3) higher syllabic prosody index compared to control males, and (4) female PD speakers had narrower pitch variability than controls. In this study, PD was manifested as less emphatic and breathier voice. Interestingly, male PD speakers’ dysprosody was manifested as an effortful speaking style, whereas female PD speakers exhibited dysprosody with a monotonous speaking style. A novel syllable-based prosody index could be a potentially useful tool in analysing prosody in disordered speech.


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Last updated on 2024-26-11 at 16:31