Spontaneous nystagmus in five cases with labyrinthine disturbances were recorded by electronystagmography under five different conditions, such as 1. eyes opened, 2. eyes closed, 3. eyes opened in dark room, 4. gaze a point forewards at 30 cm distance, and 5. using Frenzel'glasses. It is concluded that under eyes closed (2) or eyes opened in dark room (3) amplitude and frequency of nystagmus present the largest quality, and under eyes opened (1) or gaze a point (4) no nystagmus present and, if present, amplitude and frequency of nystagmus is the smallest in value because of inhibition of fixation reflex.