Variations in the effects of electric stimulation of the crossed olivocochlear bundle on cat single auditory-nerve-fiber responses to tone bursts.
Variations in the effects of electric stimulation of the crossed olivocochlear bundle on cat single auditory-nerve-fiber responses to tone bursts.
复制标题
交叉橄榄耳蜗束的电刺激对猫单听神经纤维对突发音调反应的影响的变化。
DOI：
10.1121/1.1912235
复制
发表时间：
1970
期刊：
影响因子：
--
通讯作者：
M. Wiederhold
中科院分区：
文献类型：
--
作者：
M. Wiederhold
记录了麻醉猫的单个听觉神经纤维的尖峰放电。计算了响应于几个声级的音调爆发的放电次数，这些音调爆发是单独出现的，并且之前是传递到交叉橄榄耳蜗束（COCB）交叉的一系列电击。根据这些计数，计算出 141 根光纤的 COCB 效应测量<Δu>。当用光纤特征频率下的音调测量时，<Δu> 是最大的，并且对于更高或更低频率的音调而言，<Δu> 会减小。发现<Δu>与纤维的自发放电率无关。 〈Δu〉随着特征频率的增加而增加，直至 6-10 kHz，并在 15 kHz 以上减小。对于大多数纤维，<Δu) 与纤维阈值不相关。那些表观阈值比其特征频率的最小阈值高 25 dB 以上的光纤具有较低的<Δu>。这些结果与之前的粗电极研究和功效的解剖分布有关......
Spike discharges were recorded from single auditory‐nerve fibers in anesthetized cats. Counts were made of the number of discharges in response to tone bursts at several sound levels presented both alone and preceded by a train of shocks delivered to the decussation of the crossed olivocochlear bundle (COCB). From these counts, a measure 〈Δu〉 of the COCB effect was computed for 141 fibers. 〈Δu〉 is maximum when measured with tone bursts at a fiber's characteristic frequency and decreases for tones of higher or lower frequency. 〈Δu〉 was found to be unrelated to the fibers' spontaneous discharge rates. 〈Δu〉 increases with increasing characteristic frequency up to 6–10 kHz and decreases above 15 kHz. For most fibers, 〈Δu) does not correlate with fiber threshold. Those fibers whose apparent threshold is more than 25 dB above the minimum threshold at their characteristic frequency have low 〈Δu〉's. These results are discussed in relation to previous gross‐electrode studies and the anatomical distribution of effe...