| Fundamental frequency change during offset and onset of voicing in individuals with Parkinson disease. | |
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MedLine Citation:
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PMID: 16950600 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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SUMMARY: After years of treatment with the medication levodopa, most individuals with Parkinson disease (PD) experience fluctuations in response to their medications. Although relatively consistent perceptual voice improvements have been documented to correspond with these fluctuations, consistent quantitative data to support this finding are lacking. This mismatch may have occurred because most of this phonation research has centered on long-term phonatory measures (ie, across speaking samples and prolonged vowel tasks). The current study examined short-term phonatory behavior in individuals with PD, specifically examining fundamental frequency (F0) at the offset and onset of phonation, before and after a voiceless consonant. The F0 analysis at phonatory offset supported the conclusion that individuals with PD have difficulty with the rapid offset of voicing, and that they are stopping vocal fold vibration primarily through vocal fold abduction (without adding tension). The F0 analysis at phonatory onset revealed that all groups use some laryngeal tension at the initiation of voicing. The tension was lowest for the PD participants who were in their OFF medication state, and it was highest for the age-matched control participants and the PD participants in their ON medication states. |
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Authors:
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Alexander M Goberman; Michael Blomgren |
Publication Detail:
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Type: Journal Article Date: 2006-09-06 |
Journal Detail:
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Title: Journal of voice : official journal of the Voice Foundation Volume: 22 ISSN: 0892-1997 ISO Abbreviation: J Voice Publication Date: 2008 Mar |
Date Detail:
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Created Date: 2008-02-26 Completed Date: 2008-06-24 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8712262 Medline TA: J Voice Country: United States |
Other Details:
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Languages: eng Pagination: 178-91 Citation Subset: IM |
Affiliation:
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Department of Communication Disorders, Bowling Green State University, Bowling Green, Ohio 43403-0149, USA. goberma@bgsu.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Antiparkinson Agents / therapeutic use Female Humans Levodopa / therapeutic use Male Middle Aged Parkinson Disease / complications*, drug therapy Severity of Illness Index Speech Acoustics* Vocal Cords / physiopathology* Voice Disorders / diagnosis, etiology*, physiopathology* Voice Quality* |
| Chemical | |
Reg. No./Substance:
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0/Antiparkinson Agents; 0/Levodopa |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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