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"The Cerca OPM-MEG System uses a unique helmet design to place 64 sensors as close as possible to the scalp surface, and an advanced array design which ensures effective cancellation of magnetic fields of no interest arising from interference sources. Published data show that a prototype system based on the Cerca design can outperform even the best cryogenic systems available when measuring neural oscillations and functional connectivity. Further, a person can wear our helmet and move freely whilst the brain is scanned. Helmets can be made to fit anyone, meaning it is possible to scan adults, or babies, using the same system. The ergonomic chair and helmet mean participants can easily be scanned in 30 minute or longer sessions on the Cerca System."