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Wednesday, March 29, 2006

Humans Ignore the Evidence of their own Eyes


Seeing is believing!
Written by Oxford University     
Sunday, 19 March 2006  
 
You probably think you?d notice if all the objects around you started moving, but research at Oxford University published today in Current Biology shows that in certain circumstances people do not even notice if a room grows to four times its size.
The Virtual Reality Research Group in Oxford used the latest in virtual reality technology to create a room where they could manipulate size and distance freely. They made the room grow in size as people walked through it, but subjects failed to notice when the scene around them quadrupled in size. As a consequence, they made gross errors when asked to estimate the size of objects in that room.
 
The lead researcher, Dr Andrew Glennerster, says: ?This was very surprising. Normally, viewing a scene with two eyes, or walking around it, provides enough information to calculate its 3D structure, as we know from computer vision.?
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