A festive optical illusion challenges readers to find five hidden gifts among Christmas decorations in under seven seconds.

REFERRING to the article in NATURE for October 20, may I mention a rather common optical illusion which I do not remember to have yet seen in print. If a gothic arch is unequally divided by a ...

Optical illusions are amazing visual puzzles that challenge how we see the world around us. These illusions confuse the eyes but also sharpen cognitive abilities and enhance intelligence.

Optical illusion tests are beneficial for brain function as they challenge our visual perception and enhance cognitive skills. These illusions require focus and attention to detail to identify ...

Trying to test your eyesight? Well you can with this new mind-boggling optical illusion. It's no secret regular puzzles and brainteasers could teach you how your eyes and brain work together to see.