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Evoked Potentials

Evoked potentials are tests where recording electrodes are placed on the head or body while selected areas are stimulated to evoke a response. They include visual (VEP), auditory (BAER), and upper/lower somatosensory (USSEP, LSSEP) tests, all of which are non-invasive tests used to assess the spinal, auditory, and visual pathways to the brain. These tests also look for structural abnormalities and help diagnose brainstem stroke, multiple sclerosis and compressive lesions of the spinal cord.