Name
Title | ||
|---|---|---|
Realistic and spherical head modeling for EEG forward problem solution: a comparative cortex-based analysis. |
Abstract | ||
|---|---|---|
The accuracy of forward models for electroencephalography (EEG) partly depends on head tissues geometry and strongly affects the reliability of the source reconstruction process, but it is not yet clear which brain regions are more sensitive to the choice of different model geometry. In this paper we compare different spherical and realistic head modeling techniques in estimating EEG forward solutions from current dipole sources distributed on a standard cortical space reconstructed from Montreal Neurological Institute (MNI) MRI data. Computer simulations are presented for three different four-shell head models, two with realistic geometry, either surface-based (BEM) or volume-based (FDM), and the corresponding sensor-fitted spherical-shaped model. Point Spread Function (PSF) and Lead Field (LF) cross-correlation analyses were performed for 26 symmetric dipole sources to quantitatively assess models' accuracy in EEG source reconstruction. Realistic geometry turns out to be a relevant factor of improvement, particularly important when considering sources placed in the temporal or in the occipital cortex. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1155/2010/972060 | Comp. Int. and Neurosc. |
Keywords | Field | DocType |
different model geometry,current dipole source,corresponding sensor-fitted spherical-shaped model,head tissues geometry,different spherical,realistic head modeling technique,eeg source reconstruction,comparative cortex-based analysis,realistic geometry,spherical head modeling,different four-shell head model,eeg forward problem solution,eeg forward solution,head,magnetic resonance imaging,electroencephalography,computer simulation | Cortex (botany),Computer vision,Source reconstruction,Computer science,Artificial intelligence,Point spread function,Electroencephalography,Dipole | Journal |
Volume | ISSN | Citations |
2010, | 1687-5273 | 8 |
PageRank | References | Authors |
0.93 | 5 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Federica Vatta | 1 | 16 | 2.31 |
| Fabio Meneghini | 2 | 8 | 0.93 |
| Fabrizio Esposito | 3 | 421 | 36.61 |
| Stefano Mininel | 4 | 21 | 2.76 |
| Francesco Di Salle | 5 | 155 | 16.25 |