magnetoelectroencephalography
Magnetoencephalography, often abbreviated as MEG, is a non-invasive neuroimaging technique that measures magnetic fields produced by electrical activity in the brain. These magnetic fields are generated by the synchronized currents of neurons, and MEG can detect these faint fields using highly sensitive magnetometers, typically superconducting quantum interference devices (SQUIDs), housed in a magnetically shielded room. The primary advantage of MEG is its excellent temporal resolution, on the order of milliseconds, allowing researchers to track the rapid changes in brain activity. Its spatial resolution is also good, although generally not as precise as fMRI.
MEG measures the magnetic fields directly, bypassing the distortion that electrical signals can experience as they