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

前诱发肌性电位检查，侧正常，左侧呈阴性。

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

理检查、听力检查、眼振图及前肌性诱发电位侧前功能较强，应有中枢性前神经元之功能障碍。