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Why Do Flashing Images Cause Seizures?

  • December 24, 2016

People with epilepsy often have seizures that are triggered by electronic devices or videos with flickering images. In a report in Smithsonian Magazine, the phenomenon is discussed, with questions centering on why patients with epilepsy have a 2- to 14 percent higher chance of having a seizure when exposed to these images. While the science isn’t clearly understood, it is known that “brightness appears to be the most intense trigger,” the magazine says. We also know...