“This is because the brain believes visual information rather than the information that it receives from the stomach or our other internal sensors,” he said.
In tests, subjects taking part in a single sitting were asked to eat biscuits until they felt full. The test subjects using the augmented reality device that made the cookies appear 50 percent larger ate 9.3 percent fewer biscuits than when they only used their naked eyes.
When the system made the biscuits appear to be 33 percent smaller, however, the test subjects consumed an average of 15 percent more.
The five-strong team of scientists has been working on the project for six months but do not have plans to turn it into a commercial product in the near future.
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