Cerebellar evoked potential elicited by stimulation of C-fiber in saphenous nerve of cat

Wu Jie, Chen Pei-Xi

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Stimulation of the saphenous nerve above C-fiber threshold strength evoked a field potential which consisted of an early component with latency of 11.8 ± 3.5 ms and a late component with latency of 312.1 ± 17.5 ms on the cerebellar cortex. After the A-fibers in saphenous nerve were blocked by the polarizing current selectivity, the stimulation at C-fiber suprathreshold elicited a C-fiber cerebellar evoked potential(C-CEP) with latency of 134.2 ± 18.4 ms. C-CEP had the maximal amplitude on the vermian lobule VI of the contra- and ipsilateral cerebellar cortex and its phases reversed in the deep layer of this area. It was suggested that the selective C-fiber input could reach the cerebellar cortex and elicit a3characteristic evoked potential. However, when A- and C-fiber inputs were elicited simultaneously, C-CEP might be inhibited by the A-fiber input.

Original languageEnglish (US)
Pages (from-to)144-146
Number of pages3
JournalBrain Research
Volume522
Issue number1
DOIs
StatePublished - Jul 2 1990
Externally publishedYes

Keywords

  • C-fiber
  • Cerebellar cortex
  • Evoked potential
  • Pain

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

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