我们曾报导针剌“足三里”能影响在大鼠丘脑束旁核和尾核内同时记录的痛兴奋和痛抑制神经元的放电活动。近来大量资料表明,脑干网状结构与丘脑内侧核团有联系,网状结构在传递痛觉信号和痛觉整合中有一定作用。那么尾核和中脑网状结构中痛兴奋和痛抑制神经元的电活动有什么关系呢?我们继以往的工作,用两支微电极插入尾核和中脑网状结构,同时记录两个神经元的电活动,观察伤害性剌激对其影响。 We have reported that acupuncture at “Zusanli” can affect the discharge activity of pain-stimulating and pain-suppressing neurons simultaneously recorded in the paraventricular nucleus and caudate nucleus of rats. Recently a large number of data show that the network of the brainstem network and the medial thalamic nuclei have a relationship, the network structure in the transmission of pain signals and analgesic integration has a role. So what is the relationship between the caudate nucleus and the painful excitability and pain inhibitory neuronal electrical activity in the caudate nucleus and midbrain reticular formation? Following our previous work, two microelectrodes were inserted into caudate nucleus and midbrain reticular formation, and two Electrical activity of neurons to observe the impact of nociceptive stimuli.