A group at the University of Tokyo is developing an augmented reality system that will alter a diner’s perception of the size of food on their plate, and in turn influence how much they eat.
That’s because our food cravings seem to be determined, at least in part, by how our meal looks,Takuji Narumi, one of system’s builders, explained to Diginfo: “We found that when food looks bigger, you feel full right away, but when it looks small, you don’t feel full even if you eat a lot.”
In their demo video, a person wearing the AR headset sits in front of a blue screen holding what looks like an Oreo. He sits still and stares at it, and the Oreo appears to grow in his hand (a laptop to his side lets the audience follow along).
A dozen subjects tested the system, Narumi says. When their food appeared 1.5 times its natural size, the testers at 10 percent less. On the other hand, when researchers “shrank” the food to two-thirds its natural size, their subjects ate 15 percent more.