Method:Latency of DPOAE was recorded in 30 ears of 15 normal subjects with and without visual attention task, contralateral acoustic stimulation and combination of both forms of stimulus.

• 方法:对正常人15例(30耳),进行视选择注意任务及对侧声刺激,以及两者同时出现时DPOAE潜伏期测试。