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n. Abbr. MEG
A diagnostic imaging technique that detects and records magnetic fields produced by electrical activity in the brain.

mag·ne′to·en·ceph′a·lo·graph′ic (-ə-lə-grăf′ĭk, -ə-lō-) adj.
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The research objectives are addressed using a unique combination of invasive, intracranial EEG recordings with laminar resolution in humans to investigate local mechanisms, and whole-brain magnetoencephalographic recordings and cutting-edge functional connectivity analysis to identify brain areas as sources and/or targets of predictions, thus relating local to global mechanisms.
Functional connectivity patterns of human magnetoencephalographic recordings: a 'small-world' network?
Using the MagnetoEncephaloGraphic (MEG) scanner at the York Neuroimaging Centre to test responses in the region, the researchers found that the posterior superior temporal sulcus responds so strongly to a face plus a voice that it clearly has a 'multimodal' rather than an exclusively visual function.
Kuroda, "Medial Prefrontal Cortex and Anterior Cingulate Cortex in the Generation of Alpha Activity Induced by Transcendental Meditation: A Magnetoencephalographic Study," Acta Medica Okayama 60, no.