Objective:To evaluate the results of 40 Hz auditory event related potential (40 Hz AERP),middle latency response (MLR) and auditory brain stem response (ABR) in intellect-handicapped and healthy children.

• 目的：对弱智儿童40Hz听觉相关电位（40HzAERP）、听觉中潜伏期反应（MLR）和听性脑干反应（ABR）检测结果进行比较和评估。