Cortical Excitability Changes Following Transcallosal Afferent Excitation

  • Zhang Gin-ru


In cats anesthetized with sodium pentobarbital, it has been found that stimulation of the corpus callosum or the contralateral homotopic point has an inhibitory effect on potentials evoked by tone bursts in the auditory area of the cortex [1]. In results obtained from the “encéphale isolé” preparation, however, there was additionally a facilitatory effect [2]. The conditions under which these inhibitory and facilitatory phenomena appear await clarification. The present investigation on rabbits constitutes a further analysis of this question, and also examines the question of effects of drugs, etc. This paper will report the results of these investigations.


Conditioning Stimulus Test Response Cortical Excitability Repetitive Stimulation Positive Wave 
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Copyright information

© Consultants Bureau, New York 1971

Authors and Affiliations

  • Zhang Gin-ru
    • 1
  1. 1.Department of PhysiologyFirst Medical College of ShanghaiShanghaiChina

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