The frequency or speed of flashing light that is most likely to cause seizures varies from person to person.
Why does flashing lights cause seizures.
People with photosensitive epilepsy have seizures that are triggered by.
Or regular moving patterns.
Bold contrasting visual patterns such as stripes or checks overexposure to video games.
A small percentage of those nearly 50 million people between 3 to 5 percent have photosensitive epilepsy which means light can trigger seizures and other symptoms of the condition.
Currently the world health organization estimates that approximately 50 million people have epilepsy a chronic condition that ranks as one of the most common neurological conditions.
Pse affects approximately one in 4 000 people 5 of those with epilepsy.
The culprit was a sequence during which red and blue lights flashed onscreen after a bomb exploded onscreen which makes sense given that red and blue stimuli have been tied to seizures for over.
It is believed that a combination of these factors will trigger the attacks.
Generally flashing lights most likely to trigger seizures are between the frequency of 5 to 30 flashes per second hertz.