Pain and touch fibers in peripheral nerves
Pain and touch fibers in peripheral nerves
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DOI：
10.1001/archneurpsyc.1933.02240100090008
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发表时间：
1933-04-01
影响因子：
--
通讯作者：
O'Leary, J
中科院分区：
文献类型：
--
作者：
Heinbecker, P;Bishop, GH;O'Leary, J
人和狗周围神经中的一组有髓纤维已被确认为那些传导脉冲导致痛感的纤维。这些纤维产生可识别的电势分量，传导速度为每秒30-15微米。它们的短时间轴和绝对不应期测量表明它们属于体细胞类型。触觉是通过感觉神经主干中最大、最易怒的有髓纤维来传递的。直接刺激暴露在外的人类神经只会产生两种感觉：触摸和疼痛。讨论了直接刺激暴露的神经和刺激感觉皮肤末梢所感受到的感觉质量的差异。那就是。这些发现为神经通路的专一性理论提供了相当大的支持。神经纤维似乎是成群出现的，不仅根据大小和传导速度，而且根据它们的末端连接。
A group of myelinated fibers in the peripheral nerves of man and dog has been identified as those which conduct impulses resulting in painful sensation. These fibers give rise to a recognizable potential component with a conduction rate of from 30-15 m. per sec. Their short chronaxie and absolutely refractory period measurements identify them as belonging to the somatic type. Tactile sensations are conveyed by the largest and most irritable myelinated fibers in a sensory nerve trunk. Direct stimulation of exposed peripheral human nerves results in only 2 sensations, touch and pain. Differences in the quality of sensations experienced on direct stimulation of exposed nerves and those resulting from stimulation of sensory skin endings are discussed. The . findings lend considerable support to the theory of the specificity of nerve pathways. Nerve fibers seem to occur in groups, not only according to size and conduction rate, but also according to their terminal connections.