What does EEG stands for?

An EEG is formally known as an electroencephalogram, thus the letters on the name.

This is a diagnostic test whose main purpose is to record the electrical activity within the brain through a series of electrodes that are placed on the scalp surrounding the skull of a person. As neurons communicate with each other through electrical impulses, the EEG, with its capacity to sensor these impulses, records the intensity, duration, wavelength and type of the electrical message to diagnose whether this communication is normal, or if it is being affected. The EEG is one of the most efficient diagnostic tests for epilepsy, narcolepsy, and other affections in the brain.