An optical illusion is a visual phenomenon where our perception of thinking about an image differs from objective reality. This image is seen as a Black-and-White Checkered Spiral Pattern Optical ...

Optical illusions often go viral, but they've been around long before social media. Here are 10 historical illusions that still leave people puzzled.

Illusion is derived from the Latin verb illudere, which means to mock or trick. Optical illusion pictures are designed to trick the human mind and are regarded as one of the simplest tests to ...

We love a good optical illusion here at Creative Bloq. From squares that hide circles to ambidextrous baseball players, little mind-benders that play with how we perceive light and colour give us no ...

Researchers have discovered new variations of an illusion created when we see three rapid flashes in our side vision. Regardless of the position of the second flash, the illusion causes the brain to ...

In this Ebbinghaus illusion of relative size perception, the orange circle on the left looks bigger than the one on the right - but it is actually 10 per cent smaller. In a new study, medical imaging ...

Most people use the terms “optical illusion” and “visual illusion” interchangeably, much like “fluid” and “liquid” or “sofa” and “couch” are synonyms. At first glance, this might be seemingly pedantic ...

Research shows that a certain kind of visual illusion, neon color spreading, works on mice. The study is also the first to combine the use of two investigative techniques called electrophysiology and ...

Delboeuf Illusion. The inner circle appears smaller when surrounded by a large circle than when surrounded by a small circle. Source: Drawing by Berit Brogaard When dentists drill holes in your teeth, ...

Seeing feels immediate; we open our eyes and the world seems to appear as a continuous stream. But some visual illusions show that events occurring later can change how we perceive what happened ...

Researchers from Kyushu University have uncovered new variations to a traditional illusion, based on how we perceive the motion of flashing lights. Published on May 21 in i-Perception, the findings ...