Double-pulse transcranial magnetic stimulation over the frontal eye field facilitates triggering of memory-guided saccades

Marius Wipfli, Jacques Felblinger, Urs P. Mosimann, Christian W. Hess, Thomas E. Schlaepfer, René M. Müri

Research output: Contribution to journalArticle

Abstract

The study investigated the influence of double-pulse transcranial magnetic stimulation (dTMS) on memory-guided saccade triggering. Double pulses with interstimulus intervals (ISIs) of 35, 50, 65 or 80 ms were applied over the right frontal eye field (FEF) and as control over the occipital cortex. A significant dTMS effect was found exclusively for contralateral saccades; latency of memory-guided saccades was reduced after FEF stimulation with an ISI of 50 ms compared to latency without stimulation. This effect proved to be specific for the ISI of 50 ms over the FEF because control stimulation with the same ISI over the occipital cortex had no significant effect on latency of memory-guided saccades. The results of our study showed that, by using an appropriate ISI, dTMS is able to facilitate contralateral saccade triggering by stimulating the FEF. This suggests that TMS interferes specifically with saccade triggering mechanisms, probably by acting on presaccadic neurons of the FEF.

Original languageEnglish (US)
Pages (from-to)571-575
Number of pages5
JournalEuropean Journal of Neuroscience
Volume14
Issue number3
DOIs
StatePublished - Dec 1 2001
Externally publishedYes

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Keywords

  • FEF
  • Humans
  • Saccades
  • TMS

ASJC Scopus subject areas

  • Neuroscience(all)

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