Effects of repetitive transcranial magnetic stimulation on voice and speech in Parkinson's disease
Identifieur interne : 001312 ( Main/Exploration ); précédent : 001311; suivant : 001313Effects of repetitive transcranial magnetic stimulation on voice and speech in Parkinson's disease
Auteurs : A. E. Dias [Brésil] ; E. R. Barbosa [Brésil] ; K. Coracini [Brésil] ; F. Maia [Brésil] ; M. A. Marcolin [Brésil] ; F. Fregni [États-Unis]Source :
- Acta Neurologica Scandinavica [ 0001-6314 ] ; 2006-02.
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Abstract
Objective – To investigate the effects of repetitive transcranial magnetic stimulation (rTMS) on vocal function in Parkinson's disease (PD). Material and methods – Two different sets of rTMS parameters were investigated on 30 patients with PD: active or sham 15 Hz rTMS of the left dorsolateral prefrontal cortex (LDLPFC) (110% of motor threshold (MT), 3000 pulses per session) and active 5 Hz rTMS of the primary motor cortex (M1)‐mouth area (90% MT, 2250 pulses per session). A blind rater evaluated speech characteristics (acoustic and perceptual analysis of voice) and voice‐related quality of life (V‐RQOL). Results – rTMS of LDLPFC resulted in mood amelioration and subjective improvement of the V‐RQOL only (71.9% improvement, P < 0.001), but not in objective measures such as fundamental frequency (P = 0.86) and voice intensity (P = 0.99). On the other hand, rTMS of M1‐mouth induced a significant improvement of the fundamental frequency (12.9% for men and 7.6% for women, P < 0.0001) and voice intensity (20.6%, P < 0.0001). Conclusions – Our findings provide initial evidence that rTMS of the primary motor cortex might yield a beneficial effect on vocal function in PD.
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DOI: 10.1111/j.1600-0404.2005.00558.x
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Fregni</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA</wicri:regionArea><placeName><region type="state">Massachusetts</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Acta Neurologica Scandinavica</title><idno type="ISSN">0001-6314</idno><idno type="eISSN">1600-0404</idno><imprint><publisher>Munksgaard International Publishers</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2006-02">2006-02</date><biblScope unit="volume">113</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="92">92</biblScope><biblScope unit="page" to="99">99</biblScope></imprint><idno type="ISSN">0001-6314</idno></series><idno type="istex">1148F20CB47CCCD10E4AA2AE43131689EAE8A220</idno><idno type="DOI">10.1111/j.1600-0404.2005.00558.x</idno><idno type="ArticleID">ANE558</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0001-6314</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Parkinson's disease</term><term>repetitive transcranial magnetic stimulation</term><term>speech dysfunction</term><term>vocal function</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Objective – To investigate the effects of repetitive transcranial magnetic stimulation (rTMS) on vocal function in Parkinson's disease (PD). Material and methods – Two different sets of rTMS parameters were investigated on 30 patients with PD: active or sham 15 Hz rTMS of the left dorsolateral prefrontal cortex (LDLPFC) (110% of motor threshold (MT), 3000 pulses per session) and active 5 Hz rTMS of the primary motor cortex (M1)‐mouth area (90% MT, 2250 pulses per session). A blind rater evaluated speech characteristics (acoustic and perceptual analysis of voice) and voice‐related quality of life (V‐RQOL). Results – rTMS of LDLPFC resulted in mood amelioration and subjective improvement of the V‐RQOL only (71.9% improvement, P < 0.001), but not in objective measures such as fundamental frequency (P = 0.86) and voice intensity (P = 0.99). On the other hand, rTMS of M1‐mouth induced a significant improvement of the fundamental frequency (12.9% for men and 7.6% for women, P < 0.0001) and voice intensity (20.6%, P < 0.0001). Conclusions – Our findings provide initial evidence that rTMS of the primary motor cortex might yield a beneficial effect on vocal function in PD.</div></front></TEI><affiliations><list><country><li>Brésil</li><li>États-Unis</li></country><region><li>Massachusetts</li><li>État de São Paulo</li></region><settlement><li>São Paulo</li></settlement><orgName><li>Université de São Paulo</li></orgName></list><tree><country name="Brésil"><region name="État de São Paulo"><name sortKey="Dias, A E" sort="Dias, A E" uniqKey="Dias A" first="A. E." last="Dias">A. E. Dias</name></region><name sortKey="Barbosa, E R" sort="Barbosa, E R" uniqKey="Barbosa E" first="E. R." last="Barbosa">E. R. Barbosa</name><name sortKey="Coracini, K" sort="Coracini, K" uniqKey="Coracini K" first="K." last="Coracini">K. Coracini</name><name sortKey="Maia, F" sort="Maia, F" uniqKey="Maia F" first="F." last="Maia">F. Maia</name><name sortKey="Marcolin, M A" sort="Marcolin, M A" uniqKey="Marcolin M" first="M. 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