An optical illusion is a fascinating visual phenomenon where the brain perceives an image differently from reality. These illusions play tricks on our eyes, making objects appear distorted, moving, or ...

An curved arrow pointing right. A popular illusion online has people scratching their heads. The trick involves taking one giant chocolate bar, cutting it into pieces, and shifting them around ...

Optical illusions may make you feel like a fool, but you could be able to train your brain to resist them. “It is very likely that people from the general population have the capacity to be ...

Medical imaging experts are adept at solving common optical illusions, according to research from four UK universities, ...

An curved arrow pointing right. A popular illusion online has started to make the rounds again on Facebook, and it has people scratching their hands. The trick involves taking one giant chocolate ...

However, optical illusions are not just for fun—they also help scientists and researchers study how our eyes and brains work together. One popular optical illusion is doing rounds on the ...

Shared recently on Instagram by the account @optical.mind, this optical illusion presents an ice cube surrounded by matchsticks. The image, bathed in a monochromatic green light, adds to the ...

More information: Nasim Nematzadeh et al, A Bioplausible Model for the Expanding Hole Illusion: Insights into Retinal Processing and Illusory Motion, arXiv (2025). DOI: 10.48550/arxiv.2501.08625 ...