- There are six folders corresponding to 6 types of BPPV disorders.

- Each folder has one sample.

Each class is specified by the typical movement of the eye.

+) Lt_Geo_BPPV: eye beats toward the ground, beats stronger to the left side (turn head left).

+) Rt_Geo_BPPV: eye beats toward the ground, beats stronger to the right side (turn head right).

+) Lt_Apo_BPPV: eye beats toward the sky, beats stronger to the left side (turn head right).