Abstract
A question and answer survey was made referring to motion sickness on vestibular disorders, which are benign paroxysmal positional vertigo (33), sudden deafness (28) and Ménière's disease (29), and compared them with that of the healthy persons (130).
There were many of those with the history of motion sickness statistically significant in benign paroxysmal positional vertigo compared with Ménière's disease and sudden deafness, showing severe symptoms. Those never experienced any motion sickness in the past were found more in sudden deafness and Ménière's disease than that in the healthy persons.
It can sufficiently be suggested that benign paroxysmal positional vertigo is an otolithic dysfunction. There are differences in seriousness and incidence of motion sickness between benign paroxysmal positional vertigo and other inner ear disorders as well as healthy persons, which identifies a relationship between the otolithic organ and motion sickness.
