Modulation of intracortical inhibition and facilitation of motor cortex through transcranial direct current stimulation

Katsuya Ogata, Takao Yamasaki, Shozo Tobimatsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Transcranial direct current stimulation (tDCS) can modulate cortical function transiently. This effect is monitored by motor evoked potentials (MEPs). The excitability of intracortical circuits in the motor cortex is assessed by paired pulse stimulation. In previous MEP studies, the modulation of short latency intracortical inhibition (SICI) and intracortical facilitation (ICF) with tDCS was demonstrated. In order to elucidate the neural mechanisms of tDCS, we evaluated the long latency intracortical inhibition (LICI) and short latency afferent inhibition (SAI) as well as SICI and ICF as objective parameters. There was a siginificant modulation of MEP amplitudes of single pulse TMS, however, SICI, ICF, LICI, and SAI were not significantly altered. Our results suggest that tDCS does not modulate neurotransmitter related to each parameter. Therefore, the modulation of MEP amplitudes of single pulse TMS may result from the change of membrane potentials.

Original languageEnglish
Title of host publication2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007
Pages2000-2003
Number of pages4
DOIs
Publication statusPublished - Dec 1 2007
Event2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007 - Beijing, China
Duration: May 23 2007May 27 2007

Publication series

Name2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007

Other

Other2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007
CountryChina
CityBeijing
Period5/23/075/27/07

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Medicine(all)

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    Ogata, K., Yamasaki, T., & Tobimatsu, S. (2007). Modulation of intracortical inhibition and facilitation of motor cortex through transcranial direct current stimulation. In 2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007 (pp. 2000-2003). [4382099] (2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007). https://doi.org/10.1109/ICCME.2007.4382099