Effects of a selective A beta afferent block on the pain-related SEP scalp topography.
Effects of a selective A beta afferent block on the pain-related SEP scalp topography.
复制标题
选择性 Aβ 传入阻滞对疼痛相关 SEP 头皮地形的影响。
DOI：
10.1007/bf01187670
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发表时间：
1995
期刊：
影响因子：
2.7
通讯作者：
Bridgman,PM
中科院分区：
文献类型：
--
作者：
Dowman,R;Bridgman,PM
本研究观察了选择性阻断A β外周传入对痛相关体感诱发电位（SEP）的影响。在A β阻滞期间给出的疼痛描述表明，由伤害性腓肠神经刺激引起的SEP来自A δ的活动，而不是C外周传入。在A β阻滞过程中记录的SEP的特点是潜伏期和地形图与我们在以前的工作中描述的晚期疼痛相关正电位（SP6）非常相似。这些结果提供了进一步的证据，表明SP6是由接受有害输入的大脑区域（来源）产生的，并且使得只参与无害体感过程的来源对SP6有贡献的可能性非常小。
This study examined the effects of a selective ischemie block of the A beta peripheral afferents on the pain-related somatosensory evoked potential (SEP). Pain descriptions given during the A beta block suggest that the SEP elicited by noxious sural nerve stimulation arises from activity in the A delta and not the C peripheral afferents. The SEP recorded during the A beta block was characterized by a potential whose latency and topographic pattern was very similar to a late pain-related positive potential (SP6) that we have described in previous work. These results provide further evidence for SP6 being generated by brain areas (sources) that receive noxious inputs and make it very unlikely that sources involved exclusively in innocuous somatosensory processes contribute to SP6.