Abstract
Scalp EEG is characterised by a limited spatial resolution and by a low sensitivity to generators distant from the cortical surface. In contrast, fMRI is characterised by a good spatial resolution and it is sensitive to signal of deep brain structures. By combining EEG with fMRI, it is possible to detect blood oxygenation level-dependent (BOLD) signal changes related with EEG patterns detected on the scalp: EEG-pattern-associated networks can be detected anywhere in the brain with a good spatial resolution. This chapter gives an introduction to the methodology of EEG-fMRI and summarises EEG-fMRI studies focused on epilepsy-related investigations: EEG-fMRI studies on focal epilepsy, generalised epilepsy and paediatric epilepsy are presented. It concludes with a short overview on EEG-fMRI studies on spontaneous brain activity in healthy subjects.
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Abbreviations
- AAS:
-
Averaged artefact subtraction
- BOLD:
-
Blood oxygenation level dependent
- EEG:
-
Electroencephalography
- fMRI:
-
Functional magnetic resonance imaging
- GSW:
-
Generalised spike-wave discharges
- HRF:
-
Hemodynamic response function
- IGE:
-
Idiopathic generalised epilepsy
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Moeller, F., Siniatchkin, M., Gotman, J. (2013). Simultaneous EEG and fMRI Recordings (EEG-fMRI). In: Ulmer, S., Jansen, O. (eds) fMRI. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-34342-1_20
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