THE COCHLEAR FREQUENCY MAP FOR THE CAT - LABELING AUDITORY-NERVE FIBERS OF KNOWN CHARACTERISTIC FREQUENCY
THE COCHLEAR FREQUENCY MAP FOR THE CAT - LABELING AUDITORY-NERVE FIBERS OF KNOWN CHARACTERISTIC FREQUENCY
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DOI：
10.1121/1.388677
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发表时间：
1982-01-01
影响因子：
2.4
通讯作者：
LIBERMAN, MC
中科院分区：
文献类型：
--
作者：
LIBERMAN, MC
用辣根过氧化物酶离子电泳法标记单个听神经纤维，测定其阈值调谐曲线和自发放电率。用16个耳蜗的52个标记神经元重建了特征频率（CF）与耳蜗纵向位置的关系。在刺激频率的八度范围内，柯替氏器的长度从低频到高频稳步增加。因此，不存在简单的线性距离到对数频率转换。当比较不同总长度的耳蜗时，在给定位置处CF的最佳预测因子是以总长度的百分比表示的距基部或顶点的距离。来自这些单神经元标记实验的耳蜗频率图进行比较，由一些不同的生理和心理物理技术的地图，并讨论了相似性和差异的意义。
Iontophoresis of horseradish peroxidase was used to label single auditory nerve fibers after determination of threshold tuning curves and rates of spontaneous discharge. The relation between characteristic frequency (CF) and cochlear longitudinal location is reconstructed from 52 labeled neurons in 16 cochleas. The length of the organ of Corti alotted to an octave of stimulus frequency increases steadily from low to high frequencies. Thus there is not a simple linear-distance-to-log frequency conversion. When comparing cochleas of different total length, the best predictor of CF at a given location is the distance from base or apex expressed as a percentage of the total length. The cochlear frequency map derived from these single-neuron labeling experiments is compared to maps derived by a number of different physiological and psychophysical techniques, and the significance of the similarities and differences is discussed.