摘要
采用适宜的参数，从豚鼠园窗记录出一种新的听觉４０Ｈｚ相关电位（４０ＨｚＡＥＲＰ—ＥＬＲ），它不同于Ｇａｌａｍｂｏｓ提出的听觉中潜伏期４０Ｈｚ相关电位（４０ＨｚＡＥＲＰ－ＭＬＲ）。通过不同部位引导的对比观察，对该电位的基本特征、影响因素及其可能发生机理进行了初步探讨。结果显示４０ＨｚＡＥＲ—ＥＬＲ波形稳定，振幅高，频率响应好，反应阈值低。在０．５ｋＨｚ短纯音的反应阈值为１３．７５ｄＢｎＨＬ，较颅顶的听觉中潜伏期４０Ｈｚ相关电位低３５ｄＢｎＨＬ。
Using suitable parameters in this paper, we recorded 40Hz auditory event relaied potential from round window in guinea pigs. It was different from Galambos's 40Hz AERP-MLR. Wepreliminarilly researched the basic features, influence factors and mechanism of 40Hz AERP-ELR.The results indicate that the response of 40Hz AERP-ELR was shady wave forms,higher amplitude, better charectristics of frequency and lower responsive threshold. For example,the responsive threshohd of 40Hz AERP-ELR elicited by 0.5 kHz tone burst was 13.75dBnHL. It was 35dB nHL lower than 40Hz AERP-MLR.
出处
《生物物理学报》
CAS
CSCD
北大核心
1995年第2期221-225,共5页
Acta Biophysica Sinica
