HANK MORGAN / SCIENCE PHOTO LIBRARY HANK MORGAN / SCIENCE PHOTO LIBRARY
Magnetoencephalography (MEG). Woman undergoing a brain scan with a neuromagnetometer, to measure normal brain function. The non-invasive scanner is positioned above her head, on the right side of her brain, while she views an object. This scan technique is called magnetoencephalography (MEG). The neuromagnetometer measures magnetic fields generated from nerve cell activity within the brain. The scanner contains sensitive magnetic field detectors known as SQUIDS (Superconducting Quantum Interference Devices). MEG enables high- speed nerve cell activity to be detected, to show the brain working in rapid "real" time. It assists researchers to understand the normal brain.
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