摘要
目的：对比观察两种电位，为临床低频听力检测提供适宜指标。方法：将球形电极置于豚鼠圆窗膜上，引导出两种听觉诱发电位，即耳蜗电图慢成分（ Ｓ Ｗ Ｃ－ Ｅｃｏｃｈ Ｇ）和听觉早潜伏期 ４０ Ｈｚ相关电位（４０ Ｈｚ Ａ Ｅ Ｒ Ｐ－ Ｅ Ｌ Ｒ）。结果：两种电位的共同特点是频率响应好，波形稳定，易辨认，反应阈值低；４０ Ｈｚ Ａ Ｅ Ｒ Ｐ－ Ｅ Ｌ Ｒ 的振幅与声强始终成正比。阈值时略高于 Ｓ Ｗ Ｃ－ Ｅｃｏｃｈ Ｇ，但差异不显著（ Ｐ＞ ００５）。结论：这两种电位为临床及科研的低频听力检测提供良好的客观指标。
Objective:Two kinds of auditory evoked potentials were observed simultaneously.Methods:The potentials were recorded from round window in Guinea pigs.Results:The common characteristics of the potentials were good frequency response,easy identification and lower responsive threshold.Conclusion:The experiment indicated that the responses provided ideal index for clinical auditory test of lower frequency.
出处
《白求恩医科大学学报》
CSCD
1999年第5期599-601,共3页
Journal of Norman Bethune University of Medical Science
