Abstract
In order to know the point of action by galvanic stimulation, galvanic body sway and caloric test were done in the patients whose parts of lesion were evident by operation or other method.
The results were as follows :
1. Patients with inner ear disorders showed normal galvanic body sway (GBS) and decreased caloric response.
2. Most of patients with the lesion of vestibular nerve and Scarpa's ganglion showed abnormal CBS and caloric response. However, three of them showed discrepancy between CBS and caloric response. From these results, we suspected that the part of action by galvanic stimulation would be the afferent fiber from the otolith system.
3. Three patients with brain stem lesions showed normal GBS and caloric response.
