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Realization of Fricatives in Patients with Parkinson’s Disease Treated with Deep Brain Stimulation in the Subthalamic Nucleus or the Caudal Zona Incerta
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.
2013 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Background

In advanced Parkinson’s disease (PD) the motor symptoms can be treated with deep brain stimulation (DBS). Subthalamic nucleus (STN) has been the most common target and caudal zona incerta (cZi) is a more recent target for stimulation. Stimulation in both of these targets has proved to be positive for the motor symptoms but there is no consensus about how DBS affects the speech and the articulation.

Aim

The aim of this study was to investigate how fricatives are realized within patients suffering from PD treated with DBS in STN or cZi.

Method

9 patients stimulated in STN and 10 patients stimulated in cZi were recorded reading a shorter text.  The recordings were made preoperatively (Pre) and 12 months after surgery with the stimulation switched off (sOff) and on (sOn). From the recordings the fricatives were extracted and assessed in a blinded and randomized procedure.

Results

For the patients stimulated in cZi the target fricative /s/ had significant lower correct realizations in the sOn condition compared to the other two conditions. The other target fricatives in cZi showed the same pattern as well. For the STN group no unequivocal pattern could be seen.

Conclusions

The results suggest that stimulation in cZi may affect the patients’ articulation of fricatives and thereby their extended articulatory movements more negative than stimulation in STN.  

Place, publisher, year, edition, pages
2013. , 13 p.
Keyword [en]
Parkinson’s disease, deep brain stimulation, subthalamic nucleus, caudal zona incerta, dysarthria, articulation, fricatives
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:umu:diva-64272OAI: oai:DiVA.org:umu-64272DiVA: diva2:599747
External cooperation
Effects of deep brain stimulation treatment of Parkinson's decease on speech and articulation proficiency: A longitudinal and contrastive study.
Educational program
Speech-Language Pathology
Uppsok
Medicine
Supervisors
Available from: 2014-03-07 Created: 2013-01-22 Last updated: 2014-03-07Bibliographically approved

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Realization of Fricatives in Patients with Parkinson’s Disease Treated with Deep Brain Stimulation in the Subthalamic Nucleus or the Caudal Zona Incerta(571 kB)177 downloads
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Citation style
  • apa
  • ieee
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More styles
Language
  • de-DE
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  • en-US
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  • nn-NB
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  • Other locale
More languages
Output format
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