MEG
Also written as: MEG — Magnetoencephalography
Magnetoencephalography, a neuroimaging technique measuring magnetic fields produced by neural electrical activity.
Full Definition
Magnetoencephalography (MEG) is a functional neuroimaging technique for mapping brain activity by recording magnetic fields produced by electrical currents occurring naturally in the brain. MEG provides excellent temporal resolution and good spatial resolution, making it particularly valuable for studying the timing of neural processes. The technique requires specialized shielded rooms and superconducting quantum interference devices (SQUIDs) to detect the extremely weak magnetic signals.
Usage
Usage note: Use capital letters for the abbreviation; note the distinction from other neuroimaging modalities.
In Context
- "MEG recordings revealed gamma oscillations preceding motor movements." — Research paper
- "The MEG facility requires regular calibration of the SQUID sensors." — Technical manual