MeSH definition : Recording of electric currents developed in the brain by means of electrodes applied
to the scalp, to the surface of the brain, or placed within the substance of the brain.;
Wikipedia link : https://en.wikipedia.org/wiki/Electroencephalography;
Recording of electric currents developed in the brain by means of electrodes applied
to the scalp, to the surface of the brain, or placed within the substance of the brain.