LATENCY TO DETECTION OF 1ST PAIN
LATENCY TO DETECTION OF 1ST PAIN
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DOI：
10.1016/0006-8993(83)90650-9
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发表时间：
1983-01-01
期刊：
影响因子：
2.9
通讯作者：
LAMOTTE, RH
中科院分区：
文献类型：
--
作者：
CAMPBELL, JN;LAMOTTE, RH
在3名受试者中测量了对施加于前臂远端和热隆隆起的热刺激的检测潜伏期，以确定短潜伏期反应是否与第一疼痛的感知相关。在给定的运行中仅使用1个温度，刺激范围为39 - 51 ℃。C.此外，受试者在每次运行结束时接受采访，了解所经历的感觉质量。在1系列实验中，记录由每个刺激诱发的第一感觉的质量而不是潜伏期。中位反应潜伏期呈指数下降，从1100毫秒至400毫秒的远端臂和110毫秒至700毫秒的手。较高的温度在手臂上引起了双重疼痛感，但在无毛的手上却没有。温暖，永远是第一感觉。短潜伏期（< 450 ms）可靠地表示第一次疼痛的存在。发出第一疼痛信号的初级传入神经的至少一部分必须具有> 6 m/s的传导速度。
The latency to detection of heat stimuli applied to the distal forearm and thernar eminence was measured in 3 subjects in order to determine whether short latency responses correlated with perception of 1st pain. Only 1 temperature was used in a given run and stimuli ranged from 39-51.degree. C. In addition, subjects were interviewed at the end of each run regarding the quality of sensations experienced. In 1 series of experiments the quality of the 1st sensation evoked by each stimulus rather than latency was recorded. The median response latency decreased exponentially from 1100 ms to 400 ms for the distal arm and 110 ms to 700 ms for the hand. The higher temperatures elicited a double pain sensation on the arm, but not on the glabrous hand. Warmth was always the 1st sensation felt on the hand. Short latencies (< 450 ms) reliably denote the presence of 1st pain. At least some portion of the primary afferents that signal 1st pain must have conduction velocities > 6 m/s.