A visual evoked potential (VEP) test is one test that a doctor may use to diagnose multiple sclerosis and monitor disease treatment and progression. Your brain and spinal cord make up your central ...

Evoked potential tests measure the time it takes for the brain to respond to sensory stimulation either through sight, sound, or touch. Doctors use the test to help diagnose multiple sclerosis (MS) ...

Your nerves transmit messages within the brain, as well as among the brain, spinal cord, and the body. In order to do this, they use a combination of electrical and chemical signaling. Motor neurons ...

A motor evoked potential (MEP) test can determine whether there is any damage along the nerves in the brain and spinal cord. It is a painless procedure but may cause some skin discomfort. An MEP test ...