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Neurology. 1998 Mar;50(3):790-3.

Epilepsy provoked by television and video games: safety of 100-Hz screens.

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  • 1Department of Neurological Sciences, University of Rome La Sapienza, Italy.


Television (TV) and video games (VG) can provoke seizures in patients with photosensitive epilepsies. Flicker frequency is the most important factor in screen activation. We tested conventional 50-Hz versus 100-Hz monitors during TV viewing and VG playing in 30 photosensitive subjects, 23 of whom had a history of TV or VG seizures or both. Fifteen subjects' discharges were activated by 50-Hz TV; 17 by 50-Hz VG; and one by a 100-Hz screen. Thus, 100-Hz screens protect against screen activation.

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