Reproducibility of TMS-Evoked EEG responses.
Hum Brain Mapp
; 30(4): 1387-96, 2009 Apr.
Article
em En
| MEDLINE
| ID: mdl-18537115
ABSTRACT
Navigated transcranial magnetic stimulation combined with electroencephalography (nTMS-EEG), allows noninvasive studies of cortical excitability and connectivity in humans. We investigated the reproducibility of nTMS-EEG in seven healthy subjects by repeating left motor and prefrontal cortical stimulation with a 1-week interval. TMS was applied at three intensities 90, 100, and 110% of subjects' motor threshold (MT). The TMS-compatible neuronavigation system guaranteed precise repositioning of the stimulation coil. The responses were recorded by a 60-channel whole head TMS-compatible EEG amplifier. A high overall reproducibility (r > 0.80) was evident in nTMS-EEG responses over both hemispheres for both motor and prefrontal cortical stimulation. The results suggest that nTMS-EEG is a reliable tool for studies investigating cortical excitability changes in the test-retest designs.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Mapeamento Encefálico
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Córtex Cerebral
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Potencial Evocado Motor
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Eletroencefalografia
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Estimulação Magnética Transcraniana
Limite:
Adult
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Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article