Do you have an abnormal EEG with multiple sclerosis?

Answer 1

Your EEG (electroencephalogram, or measure of brain activity) is not normally affected by MS. But your EEG can tell you about MS if used in conjunction with another diagnostic tool called a VEP (visual evoked potential) test. In a VEP test, you are seated in front of a computer screen while connected to an EEG. The screen displays different patterns (flashing dots or checkerboards), and the EEG measures the brain's response to the stimulus. More importantly, the brain records the delay between the stimulus and the brain's response. When someone with MS has Optic Neuritis, the signals from the eyes to the brain are delayed, and the VEP test will show this.