Studies on the correlation between vestibular function test and autonomic nervous system.

We must consider how autonomic nervous system modifies or influences the results of the test in the vestibular function test. From this point of view, I have examined 48 (men and women) adults who subjectively and objectively have normal hearing abilities and equilibrious functions. First, I have classified them into two groups, one is the stable and the other is unstable groups of autonomic nervous system and then have made the so called vestibular labyrinthine function test: vertical writing with covered eyes, rotation test and caloric test. The conclusions were as follows ; In unstable groups, the results of the test show longer average duration of after-nystagmus than in stable groups. Therefore, when we examine the so called vestibular test we must consider the subject's condition of the autonomic nervous system.