The effect of deep brain stimulation of the subthalamic nucleus on language function in Parkinson's disease: A systematic review
Autor: | Sandra H. Vos, Vitória Piai, Rianne A. J. Esselink, R. Saman Vinke, Roy P. C. Kessels |
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Rok vydání: | 2021 |
Předmět: |
Linguistics and Language
medicine.medical_specialty Alzheimer`s disease Donders Center for Medical Neuroscience [Radboudumc 1] Parkinson's disease Deep brain stimulation medicine.medical_treatment Deep Brain Stimulation Audiology Time pressure behavioral disciplines and activities Language and Linguistics Language in Interaction Speech and Hearing Language assessment Subthalamic Nucleus medicine Verbal fluency test Humans Language Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7] Neuro- en revalidatiepsychologie Language Tests Neuropsychology and rehabilitation psychology Other Research Radboud Institute for Health Sciences [Radboudumc 0] Change patterns Parkinson Disease Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3] medicine.disease nervous system diseases Subthalamic nucleus surgical procedures operative nervous system Psychology On Language |
Zdroj: | Journal of Speech, Language, and Hearing Research, 64, 2794-2810 Journal of Speech, Language, and Hearing Research, 64, 7, pp. 2794-2810 Journal of Speech, Language, and Hearing Research |
ISSN: | 1092-4388 |
DOI: | 10.1044/2021_jslhr-20-00515 |
Popis: | Purpose This systematic review focuses on the effect of bilateral deep brain stimulation (DBS) of the subthalamic nucleus (STN) on language function in Parkinson's disease (PD). It fills an important gap in recent reviews by considering other language tasks in addition to verbal fluency. Method We critically and systematically reviewed the literature on studies that investigated the effect of bilateral STN-DBS on language function in PD. All studies included a matched PD control group who were on best medical treatment, with language testing at similar baseline and follow-up intervals as the DBS PD group. Results Thirteen identified studies included a form of a verbal fluency task, seven studies included picture naming, and only two studies included more language-oriented tasks. We found that verbal fluency was negatively affected after DBS, whereas picture naming was unaffected. Studies investigating individual change patterns using reliable change indices showed that individual variability is larger for picture naming than for verbal fluency. Conclusions Verbal fluency is the most frequently investigated aspect of language function. Our analysis showed a pattern of decline in verbal fluency across multiple studies after STN-DBS, whereas picture naming was unaffected. Data on more language-oriented tests in a large DBS sample and best medical treatment control group are sparse. The investigation of language function in PD after DBS requires sensitive language tests (with and without time pressure) and experimental designs as used in the studies reviewed here. Reliable change index statistics are a promising tool for investigating individual differences in performance after DBS. Supplemental Material https://doi.org/10.23641/asha.14794458 |
Databáze: | OpenAIRE |
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