EEG

An EEG is a recording of the electrical activity of the brain, which is produced by special electrodes attached to the scalp. The study allows us to study the functioning of nerve cells in the brain and identify pathological changes in their work. The obtained data are compared with the norm depending on age and individual characteristics, or with the data of the previous recording.

Purpose of EEG: diagnosis of epilepsy, brain tumors; pathologies of the autonomic nervous system; assessment of the impact of electric fields on the human body; assessment of the level of brain arousal during its examination to make a decision on the use of hypnosis, etc. The procedure is performed on adults and children of various ages, but its results can only be interpreted by a specialist who carried out the diagnosis.

An EEG is recommended annually for all people over 35 years of age who suffer from migraines, who have suffered from frequent attacks of dizziness or loss of consciousness of unknown etiology, and who have arterial hypertension. In addition, an EEG should be performed after traumatic brain injury and any intoxication (except for cases of alcohol poisoning), since the brain becomes especially vulnerable during this period. An EEG recording should be performed if abnormalities are detected in the results of other studies of the nervous system or mental disorders, increased tone of the eye muscles, if the patient experiences frequent fainting, or loss of vision. It is also worth doing an EEG if there is sleep disturbance, emotional instability, anxiety, epileptic seizures, if memory problems begin to resemble the onset of senile sclerosis or if a disorder associated with the aging of the body manifests itself. There are certain “EEG markers” in the world associated with the severity of the disease. The more severe and prolonged the disease, the more labile the encephalographic curve becomes. The number and severity of pathological changes may indicate the localization of damaged brain structures. Thus, a decrease in the functional relationship between the frontotemporal structures indicates vascular dementia in patients who have suffered severe traumatic brain injury. Particular slow wave activity with acute pulse discharges in the frontal regions indicates cortical atrophy against the background of chronic cerebral ischemia. And increasing conical activity reflected from the temporal lobe of the brain can appear along with