关于感觉运动皮层(SM)在痛觉调制中的作用

以往有着不同的报导。上海生理所针麻组工作表明

切除兔SM后

对痛阈和针刺镇痛效应均无明显影响;韩湘文等在冷冻猴体感Ⅰ区后

表现为感受野痛阈的The purpose of the experiment was to study whether the effects of electroacupuncture (EA) on neurons in nucleus raphe magnus (NRM) were influenced by lesion of different areas of sensorimotor cortex (SM) in rats. Unit discharges of NRM and their nociceptive response to stimulaion of tail tip were recorded extracelluilarly with glass microelectrode. The excitatory type neurons of NRM were selected using of the experiments.