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 ...

This video demonstrates a visual illusion involving eye color perception. The trick relies on contrast and focus. At first, the effect seems subtle. Then the shift becomes obvious. It highlights how ...

Optical illusions demonstrate how the brain interprets visual information. This short video presents a simple illusion experiment. Viewers can test how their perception reacts to the effect. The ...

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 ...

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Optical illusions are often described as mind-boggling, mind-bendint, brain-frying, and everything in between. But let's be honest, most of the time all they elicit is a slight smirk, or maybe the odd ...

The study of visual illusions in animals provides a compelling window into both the evolutionary continuity and diversity of perceptual processes. Research indicates that many species, from domestic ...

Every illusion has a backstage crew. New research shows the brain’s own “puppet strings”—special neurons that quietly tug our perception—help us see edges and shapes that don’t actually exist. When ...

Researchers at Kyushu University have further explored the visual rabbit illusion. The three rabbits represent the actual flashes, while the dots above them show where people perceive the light points ...

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 ...

Deemed as the “black and gold dress” of 2026, in the viral TikTok video, content creator Lexi Natoli, who goes by the ...