期刊
NEURAL PLASTICITY
卷 2020, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2020/8865096
关键词
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资金
- National Natural Science Foundation of China [81873360, 81804183, 81704141]
- Basic Public Welfare Research of Zhejiang Province [LY19H270007]
- Experimental Animal Science and Technology Project of Zhejiang Province [2018C37083]
Electroacupuncture (EA) can effectively modulate pain perception and pain-related negative affect; however, we do not know whether the effect of EA on sensation and affect is parallel, or dissociated, interactional. In this study, we observed the effects of the anterior cingulate cortex (ACC) lesion and the primary somatosensory cortex (S1) activation on pain perception, pain-related affection, and neural oscillation in S1. ACC lesions did not affect pain perception but relieved pain-paired aversion. S1 activation increased pain perception and anxious behavior. EA can mitigate pain perception regardless of whether there is an ACC lesion. Chronic pain may increase the delta and theta band oscillatory activity in the S1 brain region and decrease the oscillatory activity in the alpha, beta, and gamma bands. EA intervention may inhibit the oscillatory activity of the alpha and beta bands. These results suggest that EA may mitigate chronic pain by relieving pain perception and reducing pain-related affection through different mechanisms. This evidence builds upon findings from previous studies of chronic pain and EA treatment.
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