1984 年 77 巻 10special 号 p. 2275-2284
The trapezoid rotation test by the Contraves Rotary Chair System was carried out in 14 patients with several stages of Meniere's disease. Directional preponderance (DP) was detected in 47 of 51 tests. Positional nystagmus was present in only 45% of the patients showing DP in the rotation test.
The changing process of DP detected by the trapezoid rotation test reflected labyrinthine pathology more accurately than did the positional nystagmus test.