Brain scanning is not possible through a hat, according to the University of Nottingham. The technique used is magnetoencephalography (MEG), which senses the tiny magnetic fields created by electrical signals in the brain. Once, this would have required bulky super-cooled equipment because it needed ‘squids’ – superconducting quantum interference devices – as sensors. In these ...

This story continues at Wearable quantum brain scanner developed by University of Nottingham

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