Realistic and Spherical Head Modeling for EEG Forward Problem Solution : A Comparative Cortex-Based Analysis
Joint Authors
Di Salle, Francesco
Meneghini, Fabio
Vatta, Federica
Esposito, Fabrizio
Mininel, Stefano
Source
Computational Intelligence and Neuroscience
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-02-14
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Vatta, Federica& Meneghini, Fabio& Esposito, Fabrizio& Mininel, Stefano& Di Salle, Francesco. 2010. Realistic and Spherical Head Modeling for EEG Forward Problem Solution : A Comparative Cortex-Based Analysis. Computational Intelligence and Neuroscience،Vol. 2010, no. 2010, pp.1-11.
https://search.emarefa.net/detail/BIM-512515
Modern Language Association (MLA)
Vatta, Federica…[et al.]. Realistic and Spherical Head Modeling for EEG Forward Problem Solution : A Comparative Cortex-Based Analysis. Computational Intelligence and Neuroscience No. 2010 (2010), pp.1-11.
https://search.emarefa.net/detail/BIM-512515
American Medical Association (AMA)
Vatta, Federica& Meneghini, Fabio& Esposito, Fabrizio& Mininel, Stefano& Di Salle, Francesco. Realistic and Spherical Head Modeling for EEG Forward Problem Solution : A Comparative Cortex-Based Analysis. Computational Intelligence and Neuroscience. 2010. Vol. 2010, no. 2010, pp.1-11.
https://search.emarefa.net/detail/BIM-512515
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-512515