Analysis of the click-evoked brainstem potentials in man unsing high-pass noise masking.
Analysis of the click-evoked brainstem potentials in man unsing high-pass noise masking.
复制标题
分析高通噪声掩蔽的人的点击诱发脑干电位。
DOI：
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发表时间：
1978
影响因子：
2.4
通讯作者：
J. Eggermont
中科院分区：
文献类型：
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作者：
M. Don;J. Eggermont
在听力正常的成年受试者中记录了以 1/2 倍频程间隔的各种截止频率对 60 dB-SL 噪声高通过的脑干电反应 (BSER)。通过应用派生响应技术，揭示了基底膜特定部分对 BSER 的窄带贡献。记录导出的 BSER 中各种波的潜伏期和振幅。结果表明，几乎整个耳蜗分区都有助于脑干反应。作为 CF 函数的波 I、III 和 V 的潜伏期变化以及波 I 和 III 的振幅变化似乎与 AP 的变化完全可比。相反，波 V 的振幅行为作为 CF 的函数与波 I 和 III 不同，具体取决于频率范围。波 V 的行为与早期波的差异表明，在生成 V 的水平上存在某种神经重组。耳蜗顶端部分对脑干反应的贡献这一事实为扩展脑干技术评估更高的耳蜗转动功能提供了可能性。
Brainstem electrical responses (BSER) to 60-dB-SL click in noise high passed at various cutoff frequencies separated b 1/2-octave steps were recorded in normal-hearing adult subjects. By applying a derived response technique, narrow-band contributions to the BSER from specific portions of the basilar membrane were revealed. Latencies and amplitudes of the various waves in the derived BSER were recorded. Results indicate that nearly the whole cochlear partition can contribute to the brainstem response. The shifts in latency of waves I, III, and V and amplitude changes of waves I and III as a function of CF appear to be fully comparable to those of the AP. In contrast, the amplitude behavior of wave V as a function of CF is different from waves I and III depending upon frequency range. The discrepency in the behavior of wave V with respect to the earlier waves suggests some sort of neural reorganization at the level where was V is generated. The fact that there are contributions to the brainstem response from apical portions of the cochlea opens the possibility for extending the brainstem technique in assessing the higher cochlear turn function.