Optical Illusion: Try to find the sneaky cat in under 15 seconds.

It’s a perfect take on the classic trompe-l’œil.

An optical illusion claims to provide insights into your personality based solely on what you notice first in an image — take ...

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Susana Martinez-Conde is director of the Laboratory of Visual Neuroscience at the Barrow Neurological Institute in Phoenix, Arizona. She studies visual illusions to gain a better understanding of how ...

But you might be surprised to learn that this is an optical illusion that long predates the smartphone. Known as Pepper's ...

This optical illusion by artist Oleg Shupliak features a sketch of a woman, but there are actually four women hidden in plain ...

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 ...

An optical illusion by Ukrainian artist Oleg Shupliak has left people scratching their heads as they desperately try to spot ...

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual illusions, ...

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 ...