Methods Somatosensory evoked potential (SEP),Visual evoked potential(VEP),Brainstem auditory evoked potential(BAEP) and Event related potential(ERP) were mesured in 39 cases with PD,32 cases with VPS and 20 cases of healthy control.

• 方法 测定 39例PD、32例VPS和 2 0例正常人的躯体感觉诱发电位 (SEP)、脑干听觉诱发电位 (BAEP)、视觉诱发电位 (VEP)、事件相关电位 (ERP) ,并进行比较分析。