What does a seizure in the visual cortex look like from the inside? · Grey Matter

A seizure in the visual cortex makes that cortex produce what it normally produces, only without input from the eyes, so it is seen as light.


What does a seizure in the visual cortex look like from the inside?

A seizure in the visual cortex makes that cortex produce what it normally produces, only without input from the eyes, so it is seen as light. The typical form is small, brightly coloured circles or spots, often in the half of the visual field opposite the seizing hemisphere, appearing within seconds and lasting seconds to a few minutes. Some seizures cause a patch of blindness instead, and if the discharge spreads forward, the seizure takes on the signs of the areas it reaches.