The electroencephalogram is an instrument used to record the electrical activity of the brain. The EEG can evaluate the abnormal brain activity of epilepsy, cerebral palsy, strokes, and several others. Electrodes over scattered over the brain from the frontal to occipital lobes to measure the electrical activity of the brain. The electrodes will record the electrical impulses that are sent by the brain. A typical EEG will have sixteen leads connected to the surface electrodes, …showed first 75 words of 306 total…

…showed last 75 words of 306 total…person’s cognitive symptoms are result from a metabolic disorder. Psychoactive drugs like lithium will show rapid activity of the brain. It can show if a patient is taking prescribed or unprescribed drugs. Sleep EEGs (polysomnography) measure the all-night brain activity throughout sleep. This type of electroencephalography can detect short REM latency and reduced delta sleep with patients that have depression. An EEG can provide vital information about the health and functioning of the brain.