The effect of stimulation frequency on transcranial evoked potentials

被引：10

作者：

Leodori, Giorgio ^{[3
,4
]}

Rocchi, Lorenzo ^{[1
,2
]}

Mancuso, Marco ^{[4
]}

De Bartolo, Maria Ilenia ^{[3
]}

Baione, Viola ^{[4
]}

Costanzo, Matteo ^{[4
]}

Belvisi, Daniele ^{[3
,4
]}

Conte, Antonella ^{[3
,4
]}

Defazio, Giovanni ^{[1
,2
]}

Berardelli, Alfredo ^{[3
,4
]}

机构：

[1] Univ Cagliari, Dept Med Sci & Publ Hlth, SS 554 Bivio Sestu 09042 Monserrato, I-09124 Cagliari, CA, Italy

[2] Univ Hosp Cagliari, Inst Neurol, Cagliari, Italy

[3] IRCCS Neuromed, I-86077 Pozzilli, IS, Italy

[4] Sapienza Univ Rome, Dept Human Neurosci, I-00185 Rome, RM, Italy

来源：

TRANSLATIONAL NEUROSCIENCE | 2022年 / 13卷 / 01期

关键词：

transcranial magnetic stimulation; electroencephalography; TMS-EEG; EEG; transcranial evoked potential; interstimulus interval; MAGNETIC STIMULATION; MOTOR CORTEX; TMS; EEG; INSIGHTS; BRAIN;

D O I：

10.1515/tnsci-2022-0235

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

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.

引用

收藏

页码：211 / 217

页数：7

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