[Investigations for simplification of the clinical rotation test of irritability of the human vestibular organ (author's transl)].

Fifty ear-sound adolescents were rotated by constant acceleration and deceleration. These investigations yielded three results. 1. The nystagmus of acceleration and deceleration period permits a more exact statement about rotation irritability of peripheral vestibular organ than the per-rotatoric fading nystagmus during constant rotation. 2. The stop out of constant rotation causes only a fading nystagmus, the postrotatorius I. Consequently, deceleration should substitute the stop with regard to its greater exactness. 3. Statistical comparison shows that electronystagmograms of acceleration and deceleration correspond to electronystagmograms of right and left rotation. Therefore, the clinical rotation test is practicable with only one direction of rotation. In this case, deceleration has to be of the same strength and duration as the acceleration.