Frequency thresholds of rat cochlear nerve fibers.
Frequency thresholds of rat cochlear nerve fibers.
复制标题
大鼠耳蜗神经纤维的频率阈值。
DOI：
10.2170/jjphysiol.42.459
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
K. Murata
中科院分区：
文献类型：
--
作者：
C. Zheng;S. Ito;S. Minami;J. Horikawa;K. Murata
细胞外记录Wistar大鼠单个耳蜗神经纤维的活动。最佳频率(BF)分布在0.50~62.6 kHz之间。测听图作为BF阈值分布的最小边界。60dBSPL可听频率范围为0.54~63 kHz，100dBSPL可听频率范围为0.15~67 kHz。听力图的最低谷值为5dBSPL，频率为41.2 kHz。在7.01 kHz处有10dBSPL的第二个低谷，在两个低谷之间留下了一个凹槽。定量地评估了纤维的频率-阈值曲线的形状，并给出了典型的频率-阈值曲线是BF的函数。
Activities of single cochlear nerve fibers of Wistar rats were recorded extracellularly. Best frequencies (BF) distributed from 0.50 to 62.6 kHz. The audiogram was made as the minimum boundary of the BF threshold distribution. The range of audible frequency was 0.54-63 kHz at 60 dB SPL and 0.15-67 kHz at 100 dB SPL. The lowest trough of the audiogram was 5 dB SPL at 41.2 kHz. There was the second trough of 10 dB SPL at 7.01 kHz leaving a notch between the two troughs. The shapes of the frequency-threshold curves (FTCs) of fibers were evaluated quantitatively and typical FTCs were shown as a function of BF.