探索扩展高频听力对低频耳功能影响的研究
Srikanta K Mishra1, Hansapani Rodrigo2, Jithin R Balan1
1Department of Speech, Language, and Hearing Sciences, The University of Texas at Austin.
概括
提高的扩展高频 (EHF) 听力值与正常听力图的个体的低刺激频率耳声发射 (SFOAEs) 相相关. 这表明,EHF测试可能会揭示早期的耳变化,影响低频功能.
科学领域:
- 听力学 听力学是指听力学.
- 耳声波排放 耳声波排放 耳声波排放
- 耳生理学 耳生理学
背景情况:
- 基础耳功能下降,以升高的扩展高频 (EHF) 听力值为标志,与减少的耳声排放 (OAEs) 有关.
- 在低探头水平上产生的刺激频率音声发射 (SFOAEs) 与扭曲产品的OAEs不同,可能反映出不同的耳机制.
研究的目的:
- 调查EHF听力值对低频度测量的SFOAEs的影响.
- 为了确定EHF听力状况是否会影响正常常规听力的人的SFOAEs.
主要方法:
- 从45名正常常规听力 (0.25-8 kHz) 的参与者记录了SFOAEs.
- 在扩展的高频率 (10,12.5,16 kHz) 中测量听力值.
- 在各种探测频率 (1, 2, 4 kHz) 上分析了SFOAE大小和信号噪声比 (SNR).
主要成果:
- 在具有更好的EHF听觉的耳朵中,SFOAE大小和SNR显著更高.
- 除了高频 SFOAE 大小外,EHF 听力显著预测了 SFOAE 措施.
- 探测频率的听力值没有显著影响SFOAE变异.
结论:
- 具有正常听力图的个体的高EHF值可能表明尾区域的耳功能下降,如低频SFOAEs所反映.
- 超声波听力值是耳整体健康的有价值指标,应在听力学评估中考虑.
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