The cause of motion sickness is being investigated by a researcher with a new idea: that the cause is movement, not perceptual differences. A series of motion-sickness-inducing tests shows that those people who get sick start to move oddly, similar to a drunken staggering walk.
There are plenty of treatments for motion sickness, but no one really knows what causes it. And why are some people affected, but not everybody? Human factors researchers at the University of Minnesota are conducting experiments to discover exactly what causes motion sickness. The researchers attach sensors to the test subject's head and place him in a simulated room that slowly sways back and forth. Here, they study how exaggerated or "wobbly" body motions may cause motion sickness.
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