自从 Amassian 利用诱发电位技术研究不同传入冲动在中枢间的相互作用问题以来,已积累了不少资料。但有关伤害性刺激与躯体传入冲动在大脑皮层相互作用的电生理研究还不多。Gellhorn 等(1954)和 Nakao 等(1956)曾先后观察伤害性刺激对视、听刺激的大脑皮层诱发电位的影响,并认为这种影响是经由非特异性网状上行激动系统的活动实现的。我们最近的研究表明,当改变动物的 Since Amassian’s use of evoked potential techniques to study the inter-hub interaction of different afferent impulses, much has been accumulated. However, there are not many electrophysiological studies on the interactions between nociceptive stimuli and somatosensory impulses in the cerebral cortex. Gellhorn et al. (1954) and Nakao et al. (1956) observed the effects of nociceptive stimuli on visual cue and auditory cortical evoked potentials, and concluded that this effect is mediated by unspecific reticular up-stream activation. Our recent research shows that when changing animals