Comparison of sound-transmission and cochlear-microphonic characteristics in Mongolian gerbil and guinea pig.
Comparison of sound-transmission and cochlear-microphonic characteristics in Mongolian gerbil and guinea pig.
复制标题
蒙古沙鼠和豚鼠声音传输和耳蜗微音特性的比较。
DOI：
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复制
发表时间：
1977
影响因子：
2.4
通讯作者：
J. Zwislocki
中科院分区：
文献类型：
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作者：
R. A. Schmiedt;J. Zwislocki
豚鼠耳蜗微音（CM）的特性，当补偿耳蜗内的电电容分流时，平行于相应的机械特性。具体而言，发现中耳传输特性、基底膜相位和耳蜗行进时间具有良好的一致性。将豚鼠实验中得出的CM校正外推至蒙古沙鼠记录的CM，以获得两种动物的中耳和基底膜特征、耳蜗频率图和耳蜗行进时间的估计值。估计表明，基底膜调谐曲线在顶转几乎是对称的。模型实验表明，这些曲线的低频腿的明显锐化是由helicotrema的分流效应产生的。本文还比较了三种不同的电极配置：中阶单电极（SM）、中阶与鼓阶差分对（SM-ST）和鼓阶差分对（D-ST）。
Characteristics of cochlear microphonic (CM) of guinea pigs, when compensated for electrical capacitive shunting within the cochlea, parallel corresponding mechanical characteristics. Specifically, good agreement is found for the middle‐ear transfer characteristic, basilar‐membrane phase, and cochlear travel times. CM corrections derived from guinea‐pig experiments have been extrapolated to CM recorded in Mongolian gerbils to obtain estimates of middle‐ear and basilar‐membrane characteristics, a cochlear frequency map, and cochlear travel times for both animals. The estimates indicate that basilar‐membrane tuning curves are almost symmetrical in the apical turn. Model experiments suggest that the apparent sharpening of the low‐frequency leg of these curves is produced by a shunting effect of the helicotrema. Comparisons are also made among results obtained with three different electrode configurations: a single electrode in scala media (SM), a differential pair in scalae media and tympani (SM–ST), and a d...