An electroencephalogram or EEG test detects the brain’s electrical activity using small electrodes that are painlessly placed on the head. These pick up subtle changes in the brain that allow for the diagnosis of disorders such as traumatic brain injury (TBI), epilepsy (focal or tonic-clonic), inflammation, sleeping disorders, and stroke. The EEG results will be analyzed by a specially trained doctor and then reviewed with the patient to discuss the meaning of the results and, if needed, what the next steps may be.
A technician measures you head and marks your scalp to indicate where to attach the electrodes. After, the technician will attach the electrodes in the spots that were marked on your scalp. Once in place, the EEG takes approximately 60 minutes while you are relaxed in a comfortable position with your eyes closed. During, the video is routinely recorded to capture body motions and brain waves to diagnose and treat your condition.