关于针刺产生镇痛效应

究竟是一种生理现象

还是由心理因素所引起

国外曾有不同的看法。在心理因素中

暗示或催眠暗示的作用曾引起特殊的注意。此外

还有工作发现

针刺主要对痛的情绪成分有较大的抑制作用。我们过去工作已经表明

针刺能使痛刺激引起的大脑诱发电位的晚成分(潜伏期为200毫秒左右的正相波)受到抑制。根据药物试验

也观察诱发电位的这一成分与痛The experiment was a further study to evaluate the role of suggestive factor in acupuncture anal-gesia

using cerebral potentials evokad by pain stimulation as the index of pain. It was also for theexploration of the effect of SDT method applied to pain study. Among 38 normal healthy volunteer adults

30 in experimental group were evenly divided intopositive and negative suggestive subgroups

and 8 served as the control. Word induction suggestionmethod was employed. The results indicated: 1) After acupuncture

significantly inhibited were theP_(200) amplitude of the evoked potential (P.10)

but the criterion ofpain teport was not changed. The change of d' was somewhat correlated with the P_(200) eamplitude ofevoked potential (P 关键词(KeyWords)： Abstract: Keywords: 基金项目(Foundation): 作者(Author): Beijing Cerebral Surgery Acupuncture Research Group