A state space approach to multimodal integration of simultaneously recorded EEG and fMRI

Author

Purdon, P.L. ; Lamus, C. ; Hamalainen, M.S. ; Brown, E.N.

Author_Institution

Dept. of Anaethesia & Critical Care, Massachusetts Gen. Hosp., Boston, MA, USA

fYear

2010

fDate

14-19 March 2010

Firstpage

5454

Lastpage

5457

Abstract

We develop a state space approach to multimodal integration of simultaneously recorded EEG and fMRI. The EEG is represented with a distributed current source model using realistic MRI-based forward models, whose temporal evolution is governed by a linear state space model. The fMRI signal is similarly modeled by a linear state space model describing the hemodynamic response to underlying EEG current activity. We explore the feasibility of high dimensional dynamic estimation of simultaneous EEG/fMRI using simulation studies of the alpha wave.

Keywords

biomedical MRI; electroencephalography; haemodynamics; medical image processing; neurophysiology; EEG current activity; alpha wave simulation studies; distributed current source model; fMRI; hemodynamic response; high-dimensional dynamic estimation; linear state space model; multimodal integration; realistic MRI-based forward models; simultaneously recorded EEG; state space approach; temporal evolution; Biomedical imaging; Brain modeling; Electroencephalography; Hemodynamics; High-resolution imaging; Hospitals; Scalp; Space technology; Spatial resolution; State-space methods; EEG; Multimodal Imaging; fMRI;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5494906

Filename

5494906