PURPOSE: The purpose of this study was to investigate the relationship between auditory-perceptual measures of monopitch and acoustic correlates, and to compare these measures between a group of participants with Parkinson’s disease (PwPD) and a control group of age- and sex-matched participants without Parkinson’s disease.
METHOD: Twenty listeners rated 60 recordings of speakers (30 PwPD, 30 controls) on degree of monopitch using a VAS. An acoustic correlate was derived by tracking the difference between fundamental frequency variations at final and non-final unit boundaries (foVUBdiff) in the 60 speech recordings.
RESULTS: PwPD were rated as having a higher degree of monopitch and were found to have a lower foVUBdiff when compared to the control group. A statistically significant relationship between auditory-perceptual measures of monopitch and acoustic correlate was found.
CONCLUSION: This study revealed the following: (1) PwPD were found to have higher auditory-perceptual ratings of monopitch when compared to the control group; (2) PwPD were found to have less foVUB at non-final unit boundaries and less foVUBdiff between unit boundaries when compared to the control group; (3) There is a correlation between the auditory-perceptual measures of monopitch and acoustic correlate. Together, these findings suggest that the acoustic correlate, foVUBdiff taken across unit boundaries in The Rainbow Passage shows promise as an objective measure of perceived monopitch.
| Identifer | oai:union.ndltd.org:bu.edu/oai:open.bu.edu:2144/44466 |
| Date | 19 May 2022 |
| Creators | Edelstein, Ilaina |
| Contributors | Stepp, Cara E |
| Source Sets | Boston University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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