Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Simultaneous MEG and EEG source analysis
Autore:
Huizenga, HM; van Zuijen, TL; Heslenfeld, DJ; Molenaar, PCM;
Indirizzi:
Univ Amsterdam, Dept Psychol, NL-1018 WB Amsterdam, Netherlands Univ Amsterdam Amsterdam Netherlands NL-1018 WB B Amsterdam, Netherlands
Titolo Testata:
PHYSICS IN MEDICINE AND BIOLOGY
fascicolo: 7, volume: 46, anno: 2001,
pagine: 1737 - 1751
SICI:
0031-9155(200107)46:7<1737:SMAESA>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
INVERSE PROBLEM; DIPOLE LOCALIZATION; MODEL; POTENTIALS; BRAIN; MAGNETOENCEPHALOGRAM; ELECTROENCEPHALOGRAM; SIMULATION; ATTENTION; SYSTEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Huizenga, HM Univ Amsterdam, Dept Psychol, NL-1018 WB Amsterdam, Netherlands Univ Amsterdam Amsterdam Netherlands NL-1018 WB Netherlands
Citazione:
H.M. Huizenga et al., "Simultaneous MEG and EEG source analysis", PHYS MED BI, 46(7), 2001, pp. 1737-1751

Abstract

A method is described to derive source and conductivity estimates in a simultaneous MEG and EEG source analysis. In addition the covariance matrix ofthe estimates is derived. Simulation studies with a concentric spheres model and a more realistic boundary element model indicate that this method has several advantages, even if only a few EEG sensors are added to a MEG configuration. First, a simultaneous analysis profits from the 'preferred' location directions of MEG and EEG. Second, deep sources can be estimated quite accurately, which is an advantage compared to MEG. Third. superficial profit from accurate MEG location and from accurate EEG moment. Fourth, the radial source component can be estimated, which is an advantage compared to MEG, Fifth, the conductivities can be estimated. It is shown that conductivity estimation gives a substantial increase in precision, even if the conductivities are not identified appropriately. An illustrative analysis of empirical data supports these findings.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 02:42:52