Vep
Visual evoked potential (VEP) is the electrical response generated by the visual cortex in response to visual stimulation, measured with electroencephalography (EEG). It reflects the functional integrity of the visual pathways from the retina through the optic nerve to the occipital cortex. The most prominent early component in pattern-stimulus paradigms is the P100, which occurs around 100 milliseconds after stimulus onset.
Recording typically uses scalp electrodes arranged with an active electrode over the occipital cortex (such as
Interpretation focuses on the latency and amplitude of major components, especially the P100. Prolonged P100 latency
Clinical uses include assessment of optic nerve and visual pathway integrity in optic neuritis, multiple sclerosis,