Triggers may include various stimuli with the most common (75 to 80%) being flickering lights resulting in photosensitive seizures.[1] Reflex epilepsies are generally thought to be genetic in origin.[3] The inheritance pattern is dependent on the type of reflex epilepsy with some types lacking a specific genetic inheritance patterns.[3] For example, photogenic epilepsy is thought to follow an autosomal dominant pattern with incomplete penetrance, while seizures triggered by proprioceptive stimuli do not follow an observable inheritance pattern.[3] The underlying mechanism involves the stimulation of existing network of neurons by the specific trigger.[3]