The test takes about 20-30 minutes and you will lie on an examination table for the duration of the test. This can sometimes trigger patterns of electrical activity in the brain, which are associated with certain types of epilepsy. At some point, you may be asked to blink lots of times or to breathe deeply. Wires from the electrodes are connected to the EEG machine, which detects and amplifies the electrical signals and records them on a computer. Epileptic seizures result from abnormal, excessive or hypersynchronous neuronal activity in the brain, causing surges of electrical impulses that change behavior or even cause convulsive jerking of the body.ĭuring the test, our technician will attach several small patches (electrodes) to your scalp with paste.
Though seizure is usually thought to be the same as “epilepsy”, patients sometimes pass out (syncope due to transient reductions in blood flow to the brain) and have other events that look like epileptic seizures but are not. You may be advised to have an EEG if your physician suspects that you have had a seizure ( also referred to as spells, fits, convulsions).
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