Magnetoencephalography
Magnetoencephalography (MEG) is a non-invasive neuroimaging technique that measures the magnetic fields produced by electrical activity in the brain. MEG provides high temporal resolution and excellent spatial resolution, allowing researchers to study the timing and location of neural activity in the brain. MEG is particularly useful for studying fast neural processes, such as those involved in sensory processing and motor control. MEG is also used clinically to localize the source of epileptic seizures and to map brain function prior to neurosurgery. MEG works by detecting the tiny magnetic fields produced by the electrical currents generated by neurons in the brain. These magnetic fields are measured using an array of superconducting sensors that are cooled to very low temperatures. The resulting data can be used to create maps of brain activity that are both highly accurate and temporally precise.
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