An ELECTROENCEPHALOGRAM (EEG) is a diagnostic test which, by means of electrodes positioned on the scalp, measures brain electrical activity and reproduces it on a monitor, in the shape of a series of waves with various frequencies.

An electroencephalogram is a painless test, with no side effects, which can be done at any age.

Besides its central role in epileptic disorders, it is a valid tool in evaluating all those diseases capable of modifying brain electrical activity, such as: tumoral or vascular brain lesions, degenerative diseases, metabolic abnormalities, infective diseases, comas, therapeutic response to medicines that are active on the central nervous system, certain types of headaches, outcomes of cranial traumas, sleep disorders.