Electronystagmography revealed multiple central signs, and vestibular evoked myogenic potentials were absent on the side of the lesion.

前诱发查，右侧正常，左侧呈阴。

Physical examination, audiometry, electronystagmogram and vestibular evoked myogenic potential showed right stronger vestibular function than left, and central vestibulopathy was impressed.

理查、听力查、眼振图及前诱发显示右侧前功能较强，应有中枢前神经元之功能障碍。