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Methods Inf Med. 2002;41(5):443-50.

Cortical source estimate of combined high resolution EEG and fMRI data related to voluntary movements.

Author information

1
Dipartimento di Fisiologia Umana e Farmacologia, Università di Roma La Sapienza, Roma, Italy. Fabio.Babiloni@uniroma1.it

Abstract

OBJECTIVES:

In this paper, we employed advanced methods for the modeling of human cortical activity related to voluntary right one-digit movements from combined high-resolution electroencepholography (EEG) and functional magnetic resonance imaging (fMRI).

METHODS:

Multimodal integration between EEG and fMRI data was performed by using realistic head models, a large number of scalp electrodes (128) and the estimation of current density strengths by linear inverse estimation.

RESULTS:

Increasing of spatial details of the estimated cortical density distributions has been detected by using the proposed integration method with respect to the estimation using EEG data alone.

CONCLUSION:

The proposed method of multimodal EEG-fMRI data is useful to increase spatial resolution of movement-related potentials and can also be applied to other kinds of event-related potentials.

PMID:
12501818
[Indexed for MEDLINE]
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