摘要
大脑皮层是否参与疼痛的感受长期以来是一个争议的问题。
1. The effect of electro acupuncture (EA) on the responses of single SI cortical nociceptive neurons to peripheral natural stimuli were observed in unanesthetized and paralyzed rats. 2. After EA, the responses to noxious mechanical and/or thermal stimulation reduced markedly in 14 (70%) out of 20 neurons tested, and slightly increased or unchanged in the remaining 6 neurons, as compared to the responses before EA. 3. In contrast to the variation of nociceptive responses, the responses to innocuous mechanical stimulation increased in 9 neurons and unchanged in other 9 neurons, while deceased in only 2 neurons. 4. A small portion of the neurons were activated by EA stimulation, while their responses to noxious stimulation were inhibited. 5. It is considered that the selective inhibition of the nociceptive responses of SI cortical neurons might be a part of the mechanisms of acupuncture analgesia.
出处
《针刺研究》
CAS
CSCD
1992年第2期90-95,共6页
Acupuncture Research
基金
国家自然科学基金
