MEGsignaaleilla
MEGsignaaleilla is a term used in neuroscience to denote the signals detected by magnetoencephalography (MEG). The word appears in Finnish-language literature and refers to the magnetic fields produced by synchronized neural activity, mainly in the cerebral cortex. MEG signals offer high temporal resolution, capturing brain activity on a millisecond timescale while remaining non-invasive.
Measurement relies on sensors that detect tiny magnetic fields. Traditional MEG uses superconducting quantum interference devices
MEG data are analyzed to determine when and where neural activity occurs. Common analyses include event-related
Applications include mapping sensory and cognitive processes, language and auditory research, localizing epileptic foci for surgery,
Limitations include focus on cortex with limited depth sensitivity, reliance on shielding and artifact rejection, and