Methods In 10 guinea pigs, a window was opened in the posterior semicircular canal of the left ear with the right ear serving as the control for testing the ASSR under anesthesia with pentobarbital sodium.

• 方法健康杂色豚鼠10只,左耳为实验耳,右耳为对照耳,左耳后半规管造瘘后分别进行多频听觉稳态诱发电位测试。 测试状态为戊巴比妥钠镇静睡眠。