【摘要】 本文用细胞外单位记录方法观察了电刺激大鼠黑质网状部（ＳＮＲ）对丘脑腹内侧核（ＶＭ）神经元放电活动的影响。结果显示电刺激ＳＮＲ抑制大多数ＶＭ神经元的自发放电；反应分为单纯抑制和先抑制后兴奋两种不同形式。结果提示。在大鼠，ＳＮＲ－ＶＭ传入投射主要通过抑制ＶＭ神经元的放电活动，参与对躯体运动的调节。更多还原

【Abstract】 The effect of electrical stimulation of substantia nigra,pars reticulata(SNR).on the ventromedial thalamic nucleus(VM)was investigated using extracellular-recording method in rats.The stimulation of SNR inhibited the majority of spontaneous firings in VM neurons.This inhibition was divided into two types:inhibitory type and inhibitoryexcitatory type. This result suggests that the SNR-VM afferent projection could be involved in the regulation of the body movement by inhibiting the spontaneous activities of VM neurons更多还原