Age- and disease-related vestibular decline contributes to dizziness and postural instability, motivating interventions such as noisy galvanic vestibular stimulation (nGVS). nGVS is often applied at imperceptible amplitudes and interpreted through a stochastic resonance (SR) mechanism, but because galvanic stimulation directly modulates vestibular afferents, even imperceptible currents may deterministically...
✦ The floor
Discussion
Signed responses from readers of the wire.
No immediate practice change; findings are mechanistic and inform understanding of nGVS-based balance interventions, but clinical protocols are not yet established.
Understanding the deterministic postural drive within nGVS could accelerate development of targeted vestibular rehabilitation tools for aging populations and vestibular disorder patients.
- 01Noisy galvanic vestibular stimulation (nGVS) contains a deterministic postural drive component, not purely random noise.
- 02This deterministic element may explain why nGVS can improve balance in some individuals.
- 03Age- and disease-related vestibular decline were specifically examined as variables.
- 04Findings have implications for designing better vestibular stimulation therapies.
- 05Study contributes mechanistic understanding rather than direct clinical protocols.
Noisy galvanic vestibular stimulation contains a deterministic postural drive component that influences balance responses.
studysupportedAge- and disease-related vestibular decline modulates postural responses to nGVS.
studypartially supported- PMID
- 42363675
- DOI
- 10.1152/jn.00177.2026.
- Journal
- Journal of Neurophysiology
- Publication type
- research_article
- Evidence level
- 2b
- Population
- Individuals with age- or disease-related vestibular decline and postural instability
- Intervention
- Noisy galvanic vestibular stimulation (nGVS)
Primary outcomes
Deterministic postural drive characterization during nGVS; Postural stability measures across age and vestibular disease groups