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 ...

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 ...

Past research has suggested that people's cultural differences may result in differences in basic visual perception. New research found no evidence that these differences play a significant role in ...

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

A popular theory in neuroscience called predictive coding proposes that the brain produces all the time expectations that are compared with incoming information. Errors arising from differences ...

If you believe you possess eyes as sharp as a hunter and a mind as fast as a supercomputer, take this optical illusion ...