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WHAT IS EEG?
The human brain, which produces low electrical currents, has a complex structure. Electroencephalography (EEG) is a test used to record electrical activity in the brain.
The EEG device, which records the electrical waves produced by the nerve cells in the brain, detects the presence and location of functional disorders in the brain.
The test, which is made by sticking electrodes (thin wires) made of silver or gold-containing alloy to the head with the help of gel, has been used to test many neurological diseases. illness It is done to have an idea about it.
WHY IS EEG DONE?
– Epilepsy in the diagnosis and follow-up of (sara) disease
– Brain in the diagnosis of inflammatory diseases
– Determining the cause of chronic headaches
– In the diagnosis of sleep disorder diseases
– Intellectual disability, learning disability, mental retardation
– In the differential diagnosis of psychiatric diseases with confusion or loss of consciousness.
HOW IS THE EEG TEST DONE?
In the EEG test, electrodes with high conductivity (thin cables and wires) are adhered to the scalp with the help of paste or gel called paste. The standard EEG test takes about 20 minutes.
Sometimes the duration of this test is extended to diagnose the disease. Especially in the diagnosis of seizures that occur during sleep, EEG recording is prolonged and the patient is provided to sleep.
In some patients, the EEG takes a few days and is accompanied by a video recording of the patient. This process is called video-EEG and is especially used in the differential diagnosis of epilepsy or before epilepsy surgery.
During routine EEG recording, several sequential processes are applied and recorded to better record seizures and measure the brain’s electrical responses. These are opening and closing the eyes during EEG recording, deep breathing and light stimuli to the eyes during the shooting.
These operations are carried out by the technician, who makes the EEG recording, by giving commands to the patient. Thus, the responses of the brain are recorded in the form of waves in the digital environment and their responses are measured.
DO THE ELECTRODES CONNECTED IN THE EEG TEST PAIN?
In the EEG test, there is no pain because no electrical signal is given to the body. The electrodes provide a data flow in one direction (from the patient).
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