The effect of stimulation frequency on transcranial evoked potentials

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Introduction: Transcranial magnetic stimulation-evoked electroencephalography potentials (TEPs) have been used to study motor cortical excitability in healthy subjects and several neurological conditions. However, optimal recording parameters for TEPs are still debated. Stimulation rates could affect TEP amplitude due to plasticity effects, thus confounding the assessment of cortical excitability. We tested whether short interpulse intervals (IPIs) affect TEP amplitude. Methods: We investigated possible changes in TEP amplitude and global mean field amplitude (GMFA) obtained with stimulation of the primary motor cortex at IPIs of 1.1–1.4 s in a group of healthy subjects. Results: We found no differences in TEP amplitude or GMFA between the first, second and last third of trials. Discussion: Short IPIs do not affect TEP size and can be used without the risk of confounding effects due to short-term plasticity.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
The effect of stimulation frequency on transcranial evoked potentials ; volume:13 ; number:1 ; year:2022 ; pages:211-217 ; extent:7
Translational Neuroscience ; 13, Heft 1 (2022), 211-217 (gesamt 7)

Creator
Leodori, Giorgio
Rocchi, Lorenzo
Mancuso, Marco
De Bartolo, Maria Ilenia
Baione, Viola
Costanzo, Matteo
Belvisi, Daniele
Conte, Antonella
Defazio, Giovanni
Berardelli, Alfredo

DOI
10.1515/tnsci-2022-0235
URN
urn:nbn:de:101:1-2022080714040487754845
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:29 AM CEST

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Associated

  • Leodori, Giorgio
  • Rocchi, Lorenzo
  • Mancuso, Marco
  • De Bartolo, Maria Ilenia
  • Baione, Viola
  • Costanzo, Matteo
  • Belvisi, Daniele
  • Conte, Antonella
  • Defazio, Giovanni
  • Berardelli, Alfredo

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