Higher-frequency TV screens are less likely to provoke epilepsy-type fits, according to an Italian scientist.
A television image is built up from flashing lights. In the US, sets flash at 60 hertz; in Europe, at 50 hertz. Frederico Vigevano, of the Bambino Gesù Children's Hospital in Rome, asked 30 light-sensitive people to watch 50-hertz or 100-hertz television screens. The lower-frequency screens caused half the volunteers to experience seizures, whereas the faster ones bothered only one person (
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