2020
DOI: 10.3390/brainsci10100740
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Noisy Galvanic Vestibular Stimulation (Stochastic Resonance) Changes Electroencephalography Activities and Postural Control in Patients with Bilateral Vestibular Hypofunction

Abstract: Patients with bilateral vestibular hypofunction (BVH) often suffer from imbalance, gait problems, and oscillopsia. Noisy galvanic vestibular stimulation (GVS), a technique that non-invasively stimulates the vestibular afferents, has been shown to enhance postural and walking stability. However, no study has investigated how it affects stability and neural activities while standing and walking with a 2 Hz head yaw turning. Herein, we investigated this issue by comparing differences in neural activities during s… Show more

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Cited by 18 publications
(30 citation statements)
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References 52 publications
(89 reference statements)
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“…In addition, subthreshold sinusoidal and stochastic noise can modulate the sensitivity of individual neurons in the medial vestibular nucleus without affecting the basal firing rates (Stefani et al, 2019 ). In contrast to the conventional galvanic vestibular stimulation using direct current, nGVS provides stimulation for enhancing sensory inputs in the vestibular afferents without directional specificity (Ko et al, 2020 ). Considering that input information from the vestibular sensory system affects the postural control system, nGVS could possibly result in improvements in the postural control function, thereby serving as a beneficial intervention focusing on the vestibular system.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, subthreshold sinusoidal and stochastic noise can modulate the sensitivity of individual neurons in the medial vestibular nucleus without affecting the basal firing rates (Stefani et al, 2019 ). In contrast to the conventional galvanic vestibular stimulation using direct current, nGVS provides stimulation for enhancing sensory inputs in the vestibular afferents without directional specificity (Ko et al, 2020 ). Considering that input information from the vestibular sensory system affects the postural control system, nGVS could possibly result in improvements in the postural control function, thereby serving as a beneficial intervention focusing on the vestibular system.…”
Section: Introductionmentioning
confidence: 99%
“…However, it might be used as one of the outcome measures of rehabilitation, for example to evaluate the functional effect of vestibular implantation [33][34][35][36]. This would be in line with research involving noisy galvanic vestibular stimulation, which showed that noisy galvanic stimulation is able to improve self-motion perception in healthy subjects and patients with BV, next to improving postural control and gait performance, in research settings [37][38][39][40][41][42][43][44][45][46][47].…”
Section: Introductionmentioning
confidence: 69%
“…Whether the clinical meaning of these ECG features in the RF model indicates the presence of LVDD needs further investigation. In addition, some novel machine learning techniques have been developed for signal analysis in the past 2 years [53]- [55] and whether the prediction of LVDD in young adults can be improved by utilizing the latest machine learning methods for ECG signals also requires further study in the future.…”
Section: Resultsmentioning
confidence: 99%