贵州医科大学学报

1986, (02) 87-94

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清醒活动家兔前脑神经元的自发活动及电刺激中脑中缝的影响
THE SPONTANEOUS ACTIVITY OF FOREBRAIN NEURONS AND THE INFLUENCES OF STIMULATION AT MIDBRAIN RAPHE IN CONSCIOUS, UNRESTRAINED RABBIT

孙公鐸;李緖明;何国梁;王建军;榻孔舜;管林初;陈双双;匡培梓;
Sun Gongduo,et al Dep,of physiol

摘要(Abstract):

应用慢性微电极技术,记录了100只清醒活动家兔前脑结构的尾核、杏仁、海马和隔区673个单位的自发活动和195个单位对刺激中脑中缝的效应。结果表明,清醒活动家兔不同脑区神经元自发频率分布的百分率不一。高频单位(>10次/s)各区比例接近,中频单位(1~10次/s)在尾核占多数,低频单位(<1次/s)则杏仁占优势。电刺激中脑中缝对不同脑区的效应不一,杏仁以激活效应为主,海马和尾核则激活、抑制各占半数,隔区仅有少数单位受调制。实验还见到,刺激中缝的效应与神经元自发频率有关,受中缝调制的杏仁神经元以低频单位为主,尾核神经元则以中频单位为主。
The spontaneous activities of 637 neurons at the forcbrain, including the caudate nucleus, the amygdala, the dorsal hippocampus and the septum, have been recorded by using a chronic microelectrode method in 100 awake rabbits and the effects of stimuli at the midbrain raphe are observed in 195 units. The results show as follows: there are some different percentages of frequency of spontaneous activity in the areas of the forebrain. The rates of high frequency units in the areas of the forebrain are similar; the midfrequency units are remarkable in the amygdala. There were different effects when the midbrain raphe was stimulated. The effects of the amygdala is mainly excitatory. The effects of the hippocampus and the caudate are half to half and inhibitory. The experiments show the effects of stimuli at the raphe dependent on the frepuency of spontaneous activity. The amygdala neurons modulated by raphe are mainly low-frequency units and the caudate neurons modulated are mid-frequency ones.

关键词(KeyWords): 慢性微电极技术;自发活动;电刺激;中脑中缝;前脑神经元

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作者(Author): 孙公鐸;李緖明;何国梁;王建军;榻孔舜;管林初;陈双双;匡培梓;
Sun Gongduo,et al Dep,of physiol

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DOI: 10.19367/j.cnki.1000-2707.1986.02.001

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