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Synchronization facilitates removal of MRI artefacts from concurrent EEG recordings and increases usable bandwidth.

Abstract：

:Investigating human brain function non-invasively by simultaneous EEG and fMRI measurements is gaining in popularity as more and better solutions to the inherent technical challenges emerge. We demonstrate the use of a commercially available frequency divider and phase-locking device for the purpose of synchronizing an MRI acquisition with a simultaneous recording of the EEG. Synchronization hugely improves the effectiveness of MRI artefact removal from the EEG signal by the common mean template subtraction method. It complements or substitutes post-processing techniques like filtering, thereby increasing the usable bandwidth of the EEG signal to about 150 Hz. This is important for covering the full range of human Gamma band activity. Similarly, synchronization eliminates the necessity for over-sampling of the EEG signal.

journal_name

Neuroimage

journal_title

NeuroImage

authors

Mandelkow H,Halder P,Boesiger P,Brandeis D

doi

10.1016/j.neuroimage.2006.04.231

subject

Has Abstract

pub_date

2006-09-01 00:00:00

pages

1120-6

issue

3

eissn

1053-8119

issn

1095-9572

pii

S1053-8119(06)00542-8

journal_volume

32

pub_type

杂志文章

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