Method:The procedure involved eliciting ABRs by clicks and slow vertex response (SVRs) by tone pips to the aided and unaided ear presented in sound field .

• 方法：所采用的客观测试包括：声场情况下助听与未助听的由短声引起的听性脑干反应(ABR)测试及由短纯音引起的颅顶慢反应(SVR)测试。