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

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

Research output: Contribution to journalArticleScientificpeer-review

9 Downloads (Pure)


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 1kHz (epb1kHz), normalized 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 was found to be a potential tool in analyzing prosody in disordered speech.
Original languageEnglish
Pages (from-to)766-781
Issue number8
Early online dateJul 2022
Publication statusPublished - 2023
Publication typeA1 Journal article-refereed


  • Parkinson's disease
  • Prosody

Publication forum classification

  • Publication forum level 2


Dive into the research topics of 'Prosodic features in Finnish-speaking adults with Parkinson´s disease'. Together they form a unique fingerprint.

Cite this