A quick and easily administered test that measures visual perception can accurately distinguish mild to moderate dementia associated with Lewy body disease (LBD) from dementia associated with ...

So, almost the Sixth Swamp Deer has hidden somewhere in this forest optical illusion. Your Challenge is to spot the Sixth ...

A new UCLA study challenges long-standing research claims that people of East Asian and European origins perform differently on a well-known visual perception test. The rod-and-frame task asks viewers ...

" Our test, called the Imagination Perception Battery (BIP), is designed to assess the link between perception and mental imagery through the different visual qualities that enable a scene to be ...

Optical illusions with hidden images are amazing for testing your visual powers. These illusion images challenge your brain's ...