Electroencephalography

EEG - a method to study the activity of the brain. EEG is based on the registration of bioelectric potentials of different zones and areas of the brain. The registration of the bioelectric potentials of the brain and their graphic representation by the photographic method or by ink recording are carried out by a special device - an electroencephalograph.

EEG is used to diagnose diseases such as epilepsy, tumor, vascular, inflammatory and degenerative changes in the brain, sleep and wakefulness disorders, and head injuries.

Preparation for EEG:

• before the study, it is necessary to refrain from drinking drinks containing caffeine; other restrictions in diet and diet are not required;
• wash and dry hair thoroughly to remove residual sprays, creams, oils;
• should discuss with the doctor the drugs that the patient is taking. For example, taking anticonvulsants, tranquilizers, barbiturates, and other sedatives should be discontinued 24-48 hours before the study.

How is EEG performed:

• a special cap is put on a person’s head with electrodes-antennas connected to the device itself;
• signals from the cerebral cortex are transmitted to an electroencephalograph, which converts them into a graphic image (waves).