EEG (Eeg, Electroencephalogram) - see Electroencephalography.
Electroencephalography (EEG) is a method of recording the bioelectrical activity of the brain using electrodes placed on the surface of the head. EEG reflects the total activity of large populations of neurons in the cerebral cortex and is used to diagnose various diseases and disorders of the central nervous system.
An EEG is recorded using an electroencephalograph - a device that amplifies weak biocurrents of the brain and records them in the form of a curve on paper or in digital format. By analyzing the rhythm, amplitude and shape of EEG waves, doctors obtain information about the current functional state of the patient's brain.