Subthalamic nucleus deep brain stimulation (STN-DBS) is a surgical technique to treat motor symptoms in patients with Parkinson’s disease (PD). Studies have shown that STN-DBS may cause a decline in verbal fluency performance. We aimed to verify the effects of STN-DBS on the performance of phonemic verbal fluency in Brazilian PD patients. Sixteen participants were evaluated on the Unified Parkinson’s Disease Rating Scale - Part III and for phonemic fluency (“FAS” version) in the conditions of on- and off-stimulation. We identified two different patterns of phonemic verbal fluency outcomes. The results indicate that there may be no expected pattern of effect of bilateral STN-DBS in the phonemic fluency, and patients may present with different outcomes for some reason not well understood.
CITATION STYLE
Romann, A. J., Beber, B. C., Olchik, M. R., & Rieder, C. R. M. (2017). Different outcomes of phonemic verbal fluency in parkinson’s disease patients with subthalamic nucleus deep brain stimulation. Arquivos de Neuro-Psiquiatria, 75(4), 216–220. https://doi.org/10.1590/0004-282X20170024
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