What's more, the beneficial effects of Tetris remain even when played 4 hours after the trauma, says Holmes. This suggests that the game is not just a distraction, but is interfering with the mechanisms that form the intrusive memories, she says.
But it can take up to 6 hours after a trauma for the brain to create these intrusive memories from these events, leaving a window of opportunity to prevent them from forming. According to Holmes the Tetris effect occurs because the visuospatial work required to play the game places an additional burden on the perceptual systems within the brain and so interfere with this memory-forming process.
 |  |
"dus de remedie is simpel, terwijl je overstuurd in de cel zit of bewusteloos op een brancard ligt of trillend tussen vallende bommen staat, speel tetris. Tja, die praktische uitvoering toch.
