Journal article
No Differential Effects of Subthalamic Nucleus vs. Globus Pallidus Deep Brain Stimulation in Parkinson’s Disease: Speech Acoustic and Perceptual Findings
IBRO neuroscience reports, Vol.16, pp.361-367
06/2024
DOI: 10.1016/j.ibneur.2024.01.015
PMCID: PMC10902141
PMID: 38425546
Abstract
Deep Brain Stimulation (DBS) in the Subthalamic Nucleus (STN) or the Globus Pallidus Interna (GPI) is well-established as a surgical technique for improving global motor function in patients with idiopathic Parkinson’s Disease (PD). Previous research has indicated speech deterioration in more than 30% of patients after STN-DBS implantation, whilst speech outcomes following GPI-DBS have received far less attention. Research comparing speech outcomes for patients with PD receiving STN-DBS and GPI-DBS can inform pre-surgical counseling and assist with clinician and patient decision-making when considering the neural targets selected for DBS-implantation. The aims of this pilot study were (1) to compare perceptual and acoustic speech outcomes for a group of patients with PD receiving bilateral DBS in the STN or the GPI with DBS stimulation both ON and OFF, and (2) examine associations between acoustic and perceptual speech measures and clinical characteristics.
Ten individuals with PD receiving STN-DBS and eight individuals receiving GPI-DBS were audio-recorded reading a passage. Three listeners blinded to neural target and stimulation condition provided perceptual judgments of intelligibility and overall speech severity. Speech acoustic measures were obtained from the recordings. Acoustic and perceptual measures and clinical characteristics were compared for the two neural targets and stimulation conditions.
Intelligibility and speech severity were not significantly different across neural target or stimulation conditions. Generally, acoustic measures were also not statistically different for the two neural targets or stimulation conditions. Acoustic measures reflecting more varied speech prosody were associated with improved intelligibility and lessened severity. Convergent correlations were found between UPDRS-III speech scores and perceptual measures of intelligibility and severity.
This study reports a systematic comparison of perceptual and acoustic speech outcomes following STN-DBS and GPI-DBS. Statistically significant differences in acoustic measures for the two neural targets were small in magnitude and did not yield group differences in perceptual measures. The absence of robust differences in speech outcomes for the two neural targets has implications for pre-surgical counseling. Results provide preliminary support for reliance on considerations other than speech when selecting the target for DBS in patients with PD.
Details
- Title: Subtitle
- No Differential Effects of Subthalamic Nucleus vs. Globus Pallidus Deep Brain Stimulation in Parkinson’s Disease: Speech Acoustic and Perceptual Findings
- Creators
- Frits van Brenk - University at Buffalo, State University of New YorkKaila L. Stipancic - University at Buffalo, State University of New YorkAndrea Rohl - University of IowaDaniel Corcos - Northwestern UniversityKris Tjaden - University at Buffalo, State University of New YorkJeremy D.W. Greenlee - Department of Neurosurgery, University of Iowa, Iowa City, IA, USA
- Resource Type
- Journal article
- Publication Details
- IBRO neuroscience reports, Vol.16, pp.361-367
- DOI
- 10.1016/j.ibneur.2024.01.015
- PMID
- 38425546
- PMCID
- PMC10902141
- NLM abbreviation
- IBRO Neurosci Rep
- ISSN
- 2667-2421
- eISSN
- 2667-2421
- Publisher
- Elsevier Inc
- Grant note
- DOI: 10.13039/100000002, name: NIH
- Language
- English
- Electronic publication date
- 02/2024
- Date published
- 06/2024
- Academic Unit
- Stead Family Department of Pediatrics; Iowa Neuroscience Institute; Neurosurgery; Otolaryngology
- Record Identifier
- 9984557837702771
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