Rusinov V S, Tsykalov E N, Kuznetsova G D
Institute of Higher Nervous Activity and Neurophysiology, Academy of Sciences of the USSR, Moscow.
Neurosci Behav Physiol. 1990 Mar-Apr;20(2):167-73. doi: 10.1007/BF01268136.
The method of dynamic thermovision was used in white rats to investigate the distant reactions of the cerebral cortex arising during local chemical perturbation (2% KC1). In addition to the earlier-described temperature wave of propagating depression (T waves), local areas of warming (by 0.2-0.3 degrees) symmetrical to the site of stimulation were found in the opposite hemisphere. Latent excitation foci during local chemical action were found on the dynamic thermal maps of the brain surface in regions remote from the stimulation site in the same or contralateral hemisphere. A change in the site of T-wave origination and the typical sequence of its propagation through the cortex could be observed when two potassium foci were created, as well as the development of foci of prolonged temperature oscillations at the site of encounter of two T waves. On the basis of the obtained data several questions are discussed concerning the forms and mechanisms of distant effects in the CNS.
采用动态热成像方法对白鼠进行研究，以探究局部化学扰动（2%氯化钾）时大脑皮层产生的远距离反应。除了先前描述的传播性抑制温度波（T波）外，在对侧半球还发现了与刺激部位对称的局部升温区域（升温0.2 - 0.3度）。在同侧或对侧半球远离刺激部位的脑表面动态热图上发现了局部化学作用时的潜在兴奋灶。当创建两个钾离子灶时，可以观察到T波起始部位的变化及其通过皮层传播的典型序列，以及两个T波相遇部位出现长时间温度振荡灶。基于所获得的数据，讨论了有关中枢神经系统远距离效应的形式和机制的几个问题。
