80 Hz auditory steady-state responses (ASSR) at 250 Hz and 12,000 Hz.
80 Hz auditory steady-state responses (ASSR) at 250 Hz and 12,000 Hz.
复制标题
250 Hz 和 12,000 Hz 时的 80 Hz 听觉稳态响应 (ASSR)。
DOI：
10.1080/14992020601078008
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发表时间：
2007
影响因子：
2.7
通讯作者：
Collet,Lionel
中科院分区：
文献类型：
--
作者：
Tlumak,AbreenaI;Durrant,JohnD;Collet,Lionel
虽然80 Hz听觉稳态反应（ASSR）的检测限的测量已被证明是一个合理可靠的工具，估计听力灵敏度在中间的传统听力频率（如1000和2000 Hz），在文献中的结果表明，在500 Hz和4000 Hz以上的性能可能会下降。这项工作的主要目标是检查通过ASSR测量的阈值估计的准确性，为运营商更接近听力极限。与此同时，不同的刺激和记录协议比那些常用的ASSR测试进行了检查。使用双通道记录系统，从15名听力正常的年轻人身上获得了ASSR，其调幅载波为250 Hz，重复音调为10000- 16000 Hz，使用Blackman窗口进行门控。结果证明了在广泛的载波频率范围内记录ASSR的能力，但也表明阈值估计的准确性在听力极端情况下会受到影响。基于ASSR的高频测听的可行性在原则上得到了证明，但尚不清楚这种方法是否具有足够的灵敏度和准确度来支持耳毒性监测等应用。
Although measurement of the detection limits of the 80Hz auditory steady-state response (ASSR) has proven to be a reasonably reliable tool in estimating hearing sensitivity in the mid-conventional audiometric frequencies (e.g. 1000 and 2000Hz), results in the literature suggest potentially diminishing performance at 500Hz and above 4000Hz. The primary goal of this work was to examine the accuracy of threshold estimation via ASSR measurement for carriers more toward the audiometric extremes. At the same time, different stimulus and recording protocols than those commonly employed in ASSR testing were examined. Using a two-channel recording system, ASSRs were obtained from 15 normal-hearing young adults for an amplitude-modulated carrier of 250Hz and repeated tone bursts of 10000–16000Hz, gated using a Blackman window. Results attest to the ability to record ASSRs to a wide range of carrier frequencies but also suggest that accuracy of threshold estimation suffers toward the audiometric extremes. Feasibility of ASSR-based high-frequency audiometry is demonstrated in principle, but it is not clear that this method will permit adequate sensitivity and accuracy to support such applications as ototoxicity monitoring.