Two-tone suppression in auditory-nerve fibers: extension of a stimulus-response relationship.
Two-tone suppression in auditory-nerve fibers: extension of a stimulus-response relationship.
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听觉神经纤维中的双音抑制：刺激-反应关系的延伸。
DOI：
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发表时间：
1976
影响因子：
2.4
通讯作者：
M. Sachs
中科院分区：
文献类型：
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作者：
Paul J. Abbas;M. Sachs
测量猫单根听觉神经纤维对单音和双音刺激的平均放电率。每个双音刺激的一个分量（“抑制音”）处于在某些刺激水平下产生双音抑制的频率（f2）。另一个组成部分（兴奋音）产生的增加率高于自发率时，单独提出。分数反应定义为双音刺激的驱动速率除以单独兴奋剂的驱动速率。因此，分数反应是抑制音产生的抑制量的定量测量。在f2 ≤ CF和f2<CF的分数响应依赖性中发现了一些定性差异。对于大于CF的抑制音频率，分数响应仅取决于对于一定范围的激励器电平（P1）的抑制器与激励器电平（P2/P1）的比率。当P1大到足以驱动装置进入饱和状态时，分数响应随P1增大。然而，对于f2<CF，分数…
Average discharge rate of single auditory‐nerve fibers in cats was measured in response to one‐ and two‐tone stimuli. One component (the ’’suppressor tone’’) of each two‐tone stimulus was at a frequency (f2) which produced two‐tone suppression at some stimulus levels. The other component (excitor tone) produced an increase in rate above the spontaneous rate when presented alone. Fractional response was defined as the driven rate to the two‐tone stimulus divided by the driven rate to the excitor alone. Fractional response is thus a quantitative measure of the amount of suppression produced by a suppressor tone. A number of qualitative differences were found in the dependence of fractional response for f2≳CF and f2<CF. For suppressor tone frequencies greater than CF, fractional response depends only on the ratio of suppressor to excitor levels (P2/P1) for a range of excitor levels (P1). For P1 large enough to drive a unit into saturation, fractional response increases with P1. For f2<CF, however, fractional...