Magnetoencephalography (MEG) is, just like EEG, a recording technique of the cerebral electrical activity with a temporal resolution of about one millisecond, allowing dynamic studies of the brain. It allows the recording of the magnetic counterpart of the neuronal activity, from a distance to the head, with about 150 sensors for the so-called “whole head” systems. Its main interest and its benefit over EEG, consist of its ability to localise the sources of activity in the cerebral volume with good accuracy.
Mostly used by neurologists in the clinical field of epilepsy, FORENAP applies it to study psychiatric diseases (schizophrenia especially), but also to study the effects of drugs on the central nervous system. In that field, magnetoencephalography is an EEG complementary tool with a better localization accuracy and a more selective recording of neuronal populations.
