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 ...

Optical illusions challenging to find hidden animals are a popular type of visual test. These are not just fun challenges but also a real-time test to gauge your visual perception, attention to detail ...

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 ...

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

" 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 ...