A: Yes, said Daniel Uhlrich, a UW?Madison neuroscience professor who studies visual processing in the brain. “If you flash a light at the right frequency, some people with epilepsy will have an epileptic seizure.” These “photo-triggered” seizures are not very common, affecting fewer than 10 percent of people with epilepsy. Some of those affected may experience seizures only in response to a specific trigger, while others also have spontaneous seizures.
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