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 ...

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) ...

Electrophysiology is used to diagnose and follow progression of disorders affecting vision similar to the manner electrocardiograms (ECGs) are used to monitor heart disease. The retina of the eye, ...

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 ...