Our perception of how large or small things are in the world is systematically influenced for how we perceive distance or depth. This is most famously shown by the Ponzo Illusion (discovered by Mario ...

Optical illusions have long fascinated scientists, artists, and everyday viewers. These visual puzzles can make stationary objects appear to move, straight lines look bent, or colours seem to change ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...

For the Visual Perception test, in fact, there are many ways, but practising optical illusions in a daily routine improves your depth perception regarding any visual illusion. These types of illusion ...

Ever wondered if animals like sheep or goats see the world the same wacky way we do when we look at optical illusions? Turns out they do. A recent study led by Alina Schaffer at the University of ...

The famous Ebbinghaus illusion, named for its discoverer, the German psychologist Hermann Ebbinghaus (1850–1909). Despite appearances, the two orange circles are the same size. Have you ever looked at ...

There are lots of visual illusions: an old woman who turns into a young girl, a drawing that’s either a duck or a rabbit depending on how you look at it, and, need I mention the blue and black, or ...

In today’s viral optical illusion series, you have given a geometrical illusion. These types of illusions require depth perception and high observational skills. A geometrical optical illusion is a ...

The human body is not designed to fly and at times can conspire against the pilot. EMMA LEWIS investigates some of the ...