This illusion – named Pinna's Illusory Intertwining Effect – first appeared in Shifts of Edges and Deformations of Patterns written by Baingio Pinna and Richard L Gregory, an academic journal ...

This illusion – named Pinna's Illusory Intertwining Effect – first appeared in Shifts of Edges and Deformations of Patterns ...

Stare at this wavy black-and-white spiral for long enough ... mental and neurological health. This illusion, in particular, plays with spatial distortion, pattern interference, and visual confusion to ...

A study found that radiologists who have years of training to ignore visual distractions were less susceptible to the Ebbinghaus illusion.

In this mind-bending illusion, your task is simple (or so it seems): Count how many circles are hidden in the image. But here’s the twist—only someone with a high IQ can spot the correct ...

The effect that creates the illusion in this picture is called "spiral motion aftereffect". It is based on the ability of neurons to dull their response to stimuli and distort reality, creating the ...

A recent optical illusion on Reddit features a moving circle, leaving viewers confused about its direction.

An optical illusion featuring rotating discs has sparked a debate on Twitter. While some claim they are static when the arrows are covered, others disagree.

People are being challenged to look at an optical illusion which tricks you into thinking it's moving – when it's actually not. Apparently one in 10 people can't be fooled ...