The Effect of Lamotrigine and Levetiracetam on TMS-Evoked EEG Responses Depends on Stimulation Intensity
Article
Premoli, Isabella, Costantini, Alyssa, Rivolta, D., Biondi, Andrea and Richardson, Mark P. 2017. The Effect of Lamotrigine and Levetiracetam on TMS-Evoked EEG Responses Depends on Stimulation Intensity. Frontiers in Neuroscience. 11, p. Art. 585. https://doi.org/10.3389/fnins.2017.00585
Authors | Premoli, Isabella, Costantini, Alyssa, Rivolta, D., Biondi, Andrea and Richardson, Mark P. |
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Abstract | The combination of transcranial magnetic stimulation and electroencephalography (TMS-EEG) has uncovered underlying mechanisms of two anti-epileptic medications: levetiracetam and lamotrigine. Despite their different mechanism of action, both drugs modulated TMS-evoked EEG potentials (TEPs) in a similar way. Since both medications increase resting motor threshold (RMT), the current aim was to examine the similarities and differences in post-drug TEPs, depending on whether stimulation intensity was adjusted to take account of post-drug RMT increase. The experiment followed a placebo controlled, double blind, crossover design, involving a single dose of either lamotrigine or levetiracetam. When a drug-induced increase of RMT occurred, post-drug measurements involved two blocks of stimulations, using unadjusted and adjusted stimulation intensity. A cluster based permutation analysis of differences in TEP amplitude between adjusted and unadjusted stimulation intensity showed that lamotrigine induced a stronger modulation of the N45 TEP component compared to levetiracetam. Results highlight the impact of adjusting stimulation intensity. |
Journal | Frontiers in Neuroscience |
Journal citation | 11, p. Art. 585 |
ISSN | 1662-453X |
Year | 2017 |
Publisher | Frontiers Media |
Publisher's version | License |
Digital Object Identifier (DOI) | https://doi.org/10.3389/fnins.2017.00585 |
Web address (URL) | https://doi.org/10.3389/fnins.2017.00585 |
Publication dates | |
20 Oct 2017 | |
Publication process dates | |
Deposited | 11 Jan 2019 |
Accepted | 05 Oct 2017 |
Accepted | 05 Oct 2017 |
Funder | National Institute for Health Research |
Medical Research Council | |
Engineering and Physical Sciences Research Council | |
National Institute for Health Research | |
Medical Research Council | |
Engineering and Physical Sciences Research Council | |
Copyright information | © 2017 The authors |
https://repository.uel.ac.uk/item/84q25
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