The larger the screen, the harder it is for the viewer to keep a visual frame of reference, said John Risey, an audiologist at the Ochsner Clinic in New Orleans.
"To your brain, it does appear that the entire world is moving," Risey
said.That problem is not an issue when viewing the same film on a small TV screen, he
"What makes you dizzy is that the visual environment is moving beside you, and yet you are still," Risey
said.The brain becomes confused, he
continued, and can trigger reactions in other parts of the brain that cause nausea and vomiting.
Experts suggest those who feel motion sickness try to stare at a fixed point that doesn't appear to move, such as the head of someone sitting in front of you in a theater or at a nearby seat, Risey
Dramamine, a medication taken to relieve nausea, might also help, he