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F. Babiloni, C. Babiloni, F. Carducci, C. Del Gratta, G. L. Romani, P. M. Rossini, F. Cincotti

Cortical Source Estimate of Combined High Resolution EEG and fMRI Data Related to Voluntary Movements

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 electroencephalography (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.

Methods of Information in Medicine, Schattauer

Print ISSN: 0026-1270
Volume: 41, 01/2003
Pages: 443 - 450

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