Vertigo reflects dysfunction in the vestibular system. Any disease state which changes the firing frequency of a vestibular end-organ and which produces unequal neural input to the brainstem causes vertigo. Caloric stimulation mimics acute end-organ dysfunction and helps establish the diagnosis.
眩晕反映了前庭系统的功能障碍。任何改变前庭终器放电频率并导致向脑干的神经输入不均衡的疾病状态都会引起眩晕。冷热试验模拟急性终器功能障碍，有助于明确诊断。
