active and passive shielding

Cerca Magnetics Limited develops the Cerca OPM-MEG system, described as the world's most advanced functional brain scanner. It is an integrated lightweight, ergonomic, wearable device worn like a helmet that adapts to any head size and allows participants to move freely during a scan. The system uses magnetoencephalography (MEG) to measure magnetic fields generated by neuronal current flow and construct images of moment-to-moment brain activity, offering higher sensitivity and better spatial precision at lower cost than traditional MEG scanners.

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functional brain imagingmagnetoencephalography (MEG)