1. Galvanic vestibular stimulation modulates EEG markers of voluntary movement in Parkinson's disease.
- Author
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Duncan SJ, Marques K, Fawkes J, Smith LJ, and Wilkinson DT
- Subjects
- Humans, Male, Female, Aged, Middle Aged, Electric Stimulation methods, Vestibule, Labyrinth physiology, Vestibule, Labyrinth physiopathology, Motor Cortex physiopathology, Motor Cortex physiology, Parkinson Disease physiopathology, Parkinson Disease therapy, Movement physiology, Electroencephalography methods
- Abstract
We recently showed that vestibular stimulation can produce a long-lasting alleviation of motor features in Parkinson's disease. Here we investigated whether components of the motor related cortical response that are commonly compromised in Parkinson's - the Bereitschaftspotential and mu-rhythm event-related desynchronization - are modulated by concurrent, low frequency galvanic vestibular stimulation (GVS) during repetitive limb movement amongst 17 individuals with idiopathic Parkinson's disease. Relative to sham, GVS was favourably associated with higher amplitudes during the late and movement phases of the Bereitschaftspotential and with a more pronounced decrease in spectral power within the mu-rhythm range during finger-tapping. These data increase understanding of how GVS interacts with the preparation and execution of voluntary movement and give added impetus to explore its therapeutic effects on Parkinsonian motor features., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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