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Assessing head acceleration to identify a motor threshold to galvanic vestibular stimulation
- Source :
- Journal of Neurophysiology. 125:2191-2205
- Publication Year :
- 2021
- Publisher :
- American Physiological Society, 2021.
-
Abstract
- Galvanic vestibular stimulation (GVS) is used to assess vestibular system function, but vestibulospinal responses can exhibit variability depending on protocols or intensities used. Here, we measured head acceleration in healthy subjects to identify an objective motor threshold on which to base GVS intensity when assessing standing postural responses. Thirteen healthy right-handed subjects stood on a force platform, eyes closed, and head facing forward. An accelerometer was placed on the vertex to detect head acceleration, and electromyography activity of the right soleus was recorded. GVS (200 ms; current steps 0.5, from 1 mA to 4 mA) was applied in a binaural and bipolar configuration.
- Subjects :
- Adult
Male
medicine.medical_specialty
Physiology
Electromyography
Vestibular System
Accelerometer
Young Adult
03 medical and health sciences
Acceleration
0302 clinical medicine
Physical medicine and rehabilitation
Accelerometry
medicine
Humans
Muscle, Skeletal
Galvanic vestibular stimulation
030304 developmental biology
Motor threshold
Vestibular system
0303 health sciences
medicine.diagnostic_test
business.industry
General Neuroscience
Electric Stimulation
Head Movements
Standing Position
Head (vessel)
Female
business
030217 neurology & neurosurgery
Center of pressure (fluid mechanics)
Subjects
Details
- ISSN :
- 15221598 and 00223077
- Volume :
- 125
- Database :
- OpenAIRE
- Journal :
- Journal of Neurophysiology
- Accession number :
- edsair.doi.dedup.....db58cb227e11c43ce40beb59da060568