Evoked potential

– EP is a recording of electrical activity in the brain, spinal nerves or sensory receptors in response to specific external stimulation. After electrodes are applied to the scalp and other areas of the body, a computer records the body’s neurological responses to a series of stimuli and plots responses on a graph which is then interpreted by a neurology specialist. EP helps diagnose several different neurological problems, including spinal cord injury, acoustic neuroma and optic neuritis.