Abstract
Magnetoencephalography (MEG) records magnetic fields produced by the brain electric activity. Modern devices enable rapid scanning of activity over the whole head. MEG has applications both in basic neuroscience and in the clinical realm. With increasing sophistication of MEG data analysis, studies of evoked responses and brain spontaneous activity have been extended to reveal functional connectivity between brain regions, supporting higher cognitive functions. Clinical MEG applications include the localization of eloquent cortices and epileptic foci in planning brain surgery. In the near future, MEG instruments will have capability for both structural imaging and MEG measurements in the same session.
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