The effects of galvanic stimulation on the human vestibulo-ocular reflex
| Autor: | Måns Magnusson, Swee T. Aw, Mikael Karlberg, L McGarvie, G M Halmagyi |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Adult
Male medicine.medical_specialty Eye Movements Rotation genetic structures Velocity storage Acceleration Audiology Nystagmus Physiologic Humans Medicine Inner ear Electrodes Vestibular system Semicircular canal business.industry General Neuroscience Eye movement Reflex Vestibulo-Ocular Electric Stimulation medicine.anatomical_structure Head Movements Galvanic stimulation Reflex sense organs Vestibulo–ocular reflex business Neuroscience |
| Zdroj: | Lund University |
| ISSN: | 0959-4965 |
| DOI: | 10.1097/00001756-200011270-00058 |
| Popis: | We studied the effects of 5 mA bilateral or unilateral, bipolar or monopolar, galvanic stimulation on the horizontal vestibulo-ocular reflex (hVOR) in six normal subjects during 0.01, 0.05, 0.1, 0.5 and 1 Hz yaw rotations and in two subjects during high-acceleration, low-amplitude yaw head rotations (head impulses). Bipolar galvanic stimulation induced horizontal nystagmus in all subjects and an asymmetry of the hVOR only during rotations below 0.1 Hz. Monopolar stimulation had no significant effect. The findings suggest that in humans galvanic stimulation affects those primary horizontal semicircular canal neurons that mediate the hVOR via indirect pathways through the velocity storage mechanism. |
| Databáze: | OpenAIRE |
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