Changes in electrical activity alter the height of the recording. The charges are amplified and recorded on the computer monitor. The electrodes pick up tiny electrical charges which are produced by the activity of nerve cells in the brain. The computer records the electrical activity of the brain. This procedure tracks and records brain wave patterns.ĭuring this test, small metal discs with thin wires, called electrodes, are attached to the head and hooked by wires to a computer. The test monitors the brain activity through the skull. Home » Patient Info » Diagnosis » Electroencephalogram ElectroencephalogramĪn Electroencephalogram (EEG) is a procedure that allows the doctor to detect abnormalities related to electrical activity of the brain.
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