what does an eeg test show
During an EEG test, electrodes (flat metal discs) are placed on your head. The electrodes pick up the electrical signals from your brain and record them on an EEG machine. The electrodes only pick up the electrical signals. They do not affect your brain and they do not cause you any pain. The EEG machine records the electrical signals from your brain on a computer. They look like wavy lines and these represent your brainwave patterns. The EEG test can only show your brainwave patterns at the time the test is carried out.