The statokinesigrams of 16 patients with benign paroxysmal positional vertigo (BPPV) and of 13 with vestibular deficits (VDS) were compensated with those of 20 normal subjects (NS).Velocity of the track (LNG/T), root mean square (RMS) and standard deviation area (SD-Area) were used as parameters.Fourteen different tests were performed (Table 1).There were interesting differences between the compensated VDS and BPPV patients and between the untreated period and the compensated stage in each patient group (Table 3).In the compensated stage, the BPPV group was less stable than the NS while watching LED with OKN on the tactile information plate (S-G plate). The differences in RMS and SD-Area were significant. The data for the NS and the untreated VDS group showed that the latter was more unstable while watching LED with OKN than in the dark on the S-G plate.The compensated VDS group was more unstable than the NS during OKN or while watching LED which was almost the same as in the dark on both plate conditions, and more unstable while watching LED than during OKN on the S-G plate. The differences in velocity of body sway (LNG/T) were significant.The neural region for compensation in BPPV patients might be on the visuo-oculomotor pathway through the peripheral retina. One of the most important region for compensation in VDS patients might be in the rhombencephalic reticular formation.