三个月婴儿的听性行为反应

Hearing Behavioral Response in Infants of "3 Months

目的 探索利用行为法对三个月龄婴儿进行听力筛查的可行性。方法 对３２３名北京市区７８～１０４天的婴儿进行了听力检测，测试声为１ｋＨｚ，９０ ｄＢ ＳＰＬ和２ ｋＨｚ，９０ ｄＢ ＳＰＬ两种纯音。给声时观察并用摄像机记录婴儿的听觉行为反应。结果 听性行为反应在１ ｋＨｚ，９０ ｄＢ和２ ｋＨｚ，９０ｄＢ的引出率分别为：眼部反应７０．６％和７１ ．５％，头部反应３９．０％和４２．４％，肢体反应８２．４％和８７．９％，其他反应１７．０％和１７．３％。结论 仅凭上述一种听性行为反应不足以作为听力筛查的依据。若同时观察肢体反应和眼部反应，并以其中之一的引出作为听性行为反应引出的阳性指征，则引出率可达到９５％左右，可以满足听力筛查的要求。

Objective Early diagnosis of homing defects in children is important for speech heating rehabilitation. In the pre- sent stage, behavioral method is a practical approach to screen the heating of infants in China. For this reason, it is necessary to understand the behavioral response of the infants under auditory stimulation. Methods Hearing measurements of 323 heating normal infants aged from 78 to 104 days were performed. The stimulating sounds were pure tones of 1 kHz, 90 dB SPL and 2 kHz, 90 dB SPL. During the stimulation, both eye observation and video recording were performed towards the behavioral responses of the tested infants. Results The inducing rates of heating induced behavioral responses by 1 kHz 90 dB and 2 kHz 90 dB were eye responses: 70.6%, 71.5%, head responses: 39.0%,42.4%, limb responses: 82.4%,87.9%, other responses: 17.0%, 17.3% respectively. Conclusion Nei- ther one inducing rate of those responses was high enough for a heating screening index. However, if one of the eye response or the limb response was used as the positive index of the hearing induced behavioral response, the inducing rate might be as high as 95%. This im- plied that it might be used in the homing screening.