![]() ![]() His findings were published in the journal Laeger, 83:1516, Nov.17, 1921.Īir sickness is a kind of terrestrial motion sickness induced by certain sensations of air travel. He called this "railway nystagmus", also known as "optokinetic nystagmus". In the early 20th century, Austro-Hungarian scientist Róbert Bárány observed the back and forth movement of the eyes of railroad passengers as they looked out the side windows at the scenery whipping by. ![]() Therefore, the effect is worse when looking down but may be lessened by looking outside of the vehicle. Another suggests the eyes mostly see the interior of the car which is motionless while the vestibular system of the inner ear senses motion as the vehicle goes around corners or over hills and even small bumps. The sensory conflict theory notes that the eyes view motion while riding in the moving vehicle while other body sensors sense stillness, creating conflict between the eyes and inner ear. Their inner ears, however, will contradict this by sensing the motion of the vehicle. If someone is looking at a stationary object within a vehicle, such as a magazine, their eyes will inform their brain that what they are viewing is not moving. Motion sickness is caused by a conflict between signals arriving in the brain from the inner ear, which forms the base of the vestibular system, the sensory apparatus that deals with movement and balance, and which detects motion mechanically. Carsickness results from the sensory conflict arising in the brain from differing sensory inputs. ![]()
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