Figure 7.
Movement of the otoliths in the horizontal semicircular canal in the prone roll test. (A) Initial distribution setting of the otoliths in the sitting position. (B) The stable position of the otoliths after transfer from the sitting position to the prone position. (C) The stable position of the otoliths after further rotation to the left by 90°. (D) The stable position of the otoliths after returning to the prone position. (E) The stable position of the otoliths after a further 90° rotation to the right. (F) The stable position of the otoliths after returning to the prone position.