Evoked Potentials (EP)

    Evoked Potentials (EP) - Record electrical activity in response to stimulation

    EPs are recordings of electrical activity from the brain, spinal nerves, or sensory receptors in response to specific external stimulation.  Evoked potentials are helpful in evaluating a number of different neurological problems, including spinal cord injuries, hearing loss, blurred vision and blind spots, acoustic neuroma, and optic neuritis.  EPs can be performed in a clinical neurodiagnostic laboratory, using either earphones to stimulate the hearing pathway a checker board pattern on a television screen to stimulate the visual pathway, or a small electrical current to stimulate a nerve in the arm or leg.