Visual seizures mainly present as epileptic auras, but can be simple hallucinations related with an occipital origin, or complex hallucinations associated with more anterior regions of the brain. The appearance of lateralised visual phenomena suggests an origin located in the contralateral hemisphere.
Note: Use of the qualifier "multiple interactions" designates that the annotated interaction
is comprised of a complex set of reactions and/or regulatory events, possibly involving
additional chemicals and/or gene products.