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Bulletin of Experimental Biology and Medicine

, Volume 82, Issue 3, pp 1283–1287 | Cite as

Influence of the somatosensory cortex on after-inhibition in the posterior ventral thalamic nucleus

  • E. Lang
  • R. A. Durinyan
Physiology
  • 11 Downloads

Abstract

The dynamics of the recovery curve of amplitude of the testing response in thalamocortical fibers to paired stimulation of the medial lemniscus (ML) during the action of various procedures on the somatosensory cortex was investigated in acute experiments on cats anesthetized with pentobarbital. The curve served as an indicator of corticofugal influences on after inhibition (AI) in the thalamic relay nucleus. Procedures directed toward one somatosensory cortical area blocked the transmission of afferent impulses in, 70% of neurons of the thalamic relay nucleus. Correlation was found between the number of neurons participating in the response and the character of the initial phase of AI.

Key Words

cerebral cortex thalamic nuclei regulation of the afferent flow after-processes 

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Copyright information

© Plenum Publishing Corporation 1976

Authors and Affiliations

  • E. Lang
    • 1
  • R. A. Durinyan
  1. 1.Anatomical InstituteBudapest UniversityBudapestHungary

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