When “noise” isn’t simply noise: deterministic postural drive during noisy galvanic vestibular stimulation
Abstract
Low-amplitude noisy galvanic vestibular stimulation (nGVS), including levels often imperceptible to the participant, can drive postural output. Time-cumulant analysis detected stimulus-locked vestibular-evoked responses as low as 0.1 mA, whereas coherence became significant mainly at 0.5-0.7 mA, with stronger effects on foam. These findings suggest that balance changes during nGVS may not be attributable to stochastic resonance alone and highlight the value of measuring stimulus-response coupling alongside behavioral outcomes.
Fields of Study & Subjects
Vestibular and auditory disorders
Balance
Gait
and Falls Prevention
Tactile and Sensory Interactions
Publication details
- Journal / source
- Journal of Neurophysiology
- Publisher
- American Physiological Society
- Volume
- 136
- Issue
- 1
- Pages
- 405–411
- Publication date
- 27 June 2026
- Language
- EN