A Preliminary Report on Disordered Speech with Deep Brain Stimulation in Individuals with Parkinson's Disease

Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has proven effective in treating the major motor symptoms of advanced Parkinson's disease (PD). The aim of this study was to learn which laryngeal and articulatory acoustic features changed in patients who were reported to have worse...

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Main Authors: Christopher Dromey, Suzy Bjarnason
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Parkinson's Disease
Online Access:http://dx.doi.org/10.4061/2011/796205
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author Christopher Dromey
Suzy Bjarnason
author_facet Christopher Dromey
Suzy Bjarnason
author_sort Christopher Dromey
collection DOAJ
description Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has proven effective in treating the major motor symptoms of advanced Parkinson's disease (PD). The aim of this study was to learn which laryngeal and articulatory acoustic features changed in patients who were reported to have worse speech with stimulation. Six volunteers with PD who had bilateral STN electrodes were recorded with DBS turned on or off. Perceptual ratings reflected poorer speech performance with DBS on. Acoustic measures of articulation (corner vowel formants, diphthong slopes, and a spirantization index) and phonation (perturbation, long-term average spectrum) as well as verbal fluency scores showed mixed results with DBS. Some speakers improved while others became worse on individual measures. The magnitude of DBS effects was not predictable based on the patients' demographic characteristics. Future research involving adjustments to stimulator settings or electrode placement may be beneficial in limiting the negative effects of DBS on speech.
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spelling doaj-art-618f4af1b7f147879793e7e4af57c04f2025-02-03T01:27:40ZengWileyParkinson's Disease2042-00802011-01-01201110.4061/2011/796205796205A Preliminary Report on Disordered Speech with Deep Brain Stimulation in Individuals with Parkinson's DiseaseChristopher Dromey0Suzy Bjarnason1Department of Communication Disorders, Brigham Young University, Provo, UT 84602, USADepartment of Communication Disorders, Brigham Young University, Provo, UT 84602, USADeep brain stimulation (DBS) of the subthalamic nucleus (STN) has proven effective in treating the major motor symptoms of advanced Parkinson's disease (PD). The aim of this study was to learn which laryngeal and articulatory acoustic features changed in patients who were reported to have worse speech with stimulation. Six volunteers with PD who had bilateral STN electrodes were recorded with DBS turned on or off. Perceptual ratings reflected poorer speech performance with DBS on. Acoustic measures of articulation (corner vowel formants, diphthong slopes, and a spirantization index) and phonation (perturbation, long-term average spectrum) as well as verbal fluency scores showed mixed results with DBS. Some speakers improved while others became worse on individual measures. The magnitude of DBS effects was not predictable based on the patients' demographic characteristics. Future research involving adjustments to stimulator settings or electrode placement may be beneficial in limiting the negative effects of DBS on speech.http://dx.doi.org/10.4061/2011/796205
spellingShingle Christopher Dromey
Suzy Bjarnason
A Preliminary Report on Disordered Speech with Deep Brain Stimulation in Individuals with Parkinson's Disease
Parkinson's Disease
title A Preliminary Report on Disordered Speech with Deep Brain Stimulation in Individuals with Parkinson's Disease
title_full A Preliminary Report on Disordered Speech with Deep Brain Stimulation in Individuals with Parkinson's Disease
title_fullStr A Preliminary Report on Disordered Speech with Deep Brain Stimulation in Individuals with Parkinson's Disease
title_full_unstemmed A Preliminary Report on Disordered Speech with Deep Brain Stimulation in Individuals with Parkinson's Disease
title_short A Preliminary Report on Disordered Speech with Deep Brain Stimulation in Individuals with Parkinson's Disease
title_sort preliminary report on disordered speech with deep brain stimulation in individuals with parkinson s disease
url http://dx.doi.org/10.4061/2011/796205
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