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Detection of very high correlation in the alpha band between temporal regions of the human brain using MEG.

Abstract：

:It is generally believed that alpha band (8-12 Hz) electric and magnetic activity in the area of the left and right temporal regions in the human brain are at best poorly correlated. There are no previous reports of very high alpha band correlation between left and right temporal regions by magnetoencephalography (MEG) or electroencephalography (EEG). We present whole head magnetoencephalography (MEG) results that demonstrate that, for temporal channels in the majority of healthy subjects tested, the alpha band signals are highly to very highly correlated and are antiparallel in direction. A correlation as high as -0.97 was found for a limited time in one subject. We suggest that the correlation found may be the consequence of strong direct or indirect coupling between homologue areas in left and right temporal regions rather than a common source. The correlation may provide a valuable index of loss of connectivity in the brain due to disease as well providing valuable insight to brain function and deserves further investigation.

journal_name

Neuroimage

journal_title

NeuroImage

authors

Cover KS,Stam CJ,van Dijk BW

doi

10.1016/j.neuroimage.2004.04.016

keywords:

subject

Has Abstract

pub_date

2004-08-01 00:00:00

pages

1432-7

issue

4

eissn

1053-8119

issn

1095-9572

pii

S1053811904002253

journal_volume

22

pub_type

杂志文章

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