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Treatment effects in voice onset time of plosives associated with deep brain stimulation of the subthalamic nucleus and the caudal zona incerta
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Speech and Language Therapy. Umeå University, Faculty of Arts, Department of language studies.ORCID iD: 0000-0003-3373-0934
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Speech and Language Therapy.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Speech and Language Therapy.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Speech and Language Therapy.
2012 (English)In: Journal of medical speech-language pathology, ISSN 1065-1438, Vol. 20, no 4, 65-69 p.Article in journal (Refereed) Published
Abstract [en]

The present study investigated the effect of deep brain stimulation (DBS) of the subthalamic nucleus (STN) and the caudal zona inserta (cZi) on motor control and coordination in plosives. A total of 2520 plosive productions, recorded during production of alternate motion rate and sequential motion rate tasks, were measured for voice onset time (VOT) when measurement was possible. Failed measurements were classified by the underlying cause. The resulting data were analyzed separately for each place of articulation of the intended plosive and compared with the articulatory properties of plosives not meeting the requirements for VOT measurement. The results showed no consistent overall stimulation effect in VOT regardless of place of articulatory closure. Furthermore, no overall pattern concerning the distribution of factors causing failures to measure VOT was observed. Instead, the results suggest a more complex interaction among place of articulation, speech task, and stimulation target in the determination of treatment effects of DBS in patients with Parkinson's disease (PD). The results further suggest that VOT may not provide a robust estimate of treatment effects in articulatory proficiency related to plosive production in patients with PD.

Place, publisher, year, edition, pages
Delmar Cengage Learning, 2012. Vol. 20, no 4, 65-69 p.
Keyword [en]
Parkinson's disease, speech articulation, caudal zona incerta, subthalamic nucleus
National Category
Other Clinical Medicine Neurosciences
Research subject
Linguistics
Identifiers
URN: urn:nbn:se:umu:diva-58214ISI: 000209107200012OAI: oai:DiVA.org:umu-58214DiVA: diva2:547283
Funder
Swedish Research Council, 2009-946
Available from: 2012-09-14 Created: 2012-08-27 Last updated: 2017-12-07Bibliographically approved

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Karlsson, FredrikUnger, ElinWahlgren, SofiaDoorn, Jan van

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CiteExportLink to record
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