Salt taste discrimination after bilateral section of the chorda tympani or glossopharyngeal nerves.
Salt taste discrimination after bilateral section of the chorda tympani or glossopharyngeal nerves.
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双侧鼓索或舌咽神经切断后的盐味辨别。
DOI：
10.1152/ajpregu.1992.263.1.r169
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Grill,HJ
中科院分区：
文献类型：
--
作者：
Spector,AC;Grill,HJ
味觉传入阻滞的前舌两侧部分鼓索神经，其中删除只有15%的总味蕾在大鼠中，严重损害了大鼠的能力，区分氯化钠氯化钾。歧视是有选择性的。失神经大鼠能够区分奎宁蔗糖。尽管消除四倍的舌咽神经的双边部分的味蕾，舌后传入神经阻滞没有影响NaCl与KCl的歧视性能。总的来说，这些数据表明，鼓索神经的传入提供了最高程度的差距之间的外周信号表示NaCl和KCl。其他人的电生理研究结果暗示钠特异性传入似乎只存在于鼓索神经的关键元素subserving NaCl与KCl的歧视。
Gustatory deafferentation of the anterior tongue by bilateral section of the chorda tympani nerve, which removes only 15% of the total taste buds in the rat, severely impaired the rat's ability to discriminate NaCl from KCl. The discrimination deficit was selective. Denervated rats were able to discriminate sucrose from quinine. Despite eliminating four times as many taste buds by bilateral section of the glossopharyngeal nerve, posterior lingual deafferentation had no effect on NaCl vs. KCl discrimination performance. Collectively, these data suggest that afferents in the chorda tympani nerve provide the highest degree of disparity between the peripheral signals representing NaCl and KCl. Electrophysiological findings of others implicate the sodium-specific afferents that appear to exclusively exist in the chorda tympani nerve as the critical elements subserving the NaCl vs. KCl discrimination.