There are billions of nerve cells in the human nervous system, of course, these nerve cells have spread to various parts of the body, but mostly in the brain and spine. It should not be forgotten that thousands of nerve cells are in communication with each other, and as a result of these communications, electrical fluctuations occur in our brain. So what exactly does the EEG do? Let's examine the details together in this article.
What is EEG?
EEG test is applied to measure electrical fluctuations in the brain. It is also possible to have information about brain functions with EEG.
How is EEG Test Done?
In order to perform the EEG test, the electrodes are attached to the scalp or earlobe with a special substance. It is not important that the scalp is hairy for this test to be performed. There is one point that should not be missed about the test, which is that the electrodes do not give electricity to the brain. With EEG, only the electrical activity in the brain is measured.
In What Situation Is EEG Test Done?
Your specialist can perform the EEG test in sleep or wakefulness by performing the necessary examinations. In this case, the important thing is which condition the doctor suspects. Your doctor may ask you to be asleep, awake, or look at an image while the test is performed, depending on the disease he/she suspects. Usually, this test is used in diseases such as brain disorders and epilepsy.
Before EEG Test
It is very important that your hair is clean before the EEG test. If you wish, you can wash your hair on the day of the test or the day before. However, you should not apply hair spray or hair styler to your hair. Similarly, you should not consume caffeine for 24 hours before the EEG.
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