American psychologist Joseph Jastrow made this illusion in 1899 – to make a point about how the brain perceives what is in ...

Once in a while, an optical ... black-and-white one causes them to dilate. 👁 Science is on our side. We’ll help you understand it all. That’s because the yellow image, called the Asahi ...

The researchers hypothesize that the illusion works because the gradient on the central hole makes it look as if the viewer is entering a dark hole or tunnel ... white and gold or blue and black.

"The black hole keeps growing without getting bigger," reads the caption of the optical illusion. The image shows a black hole in the centre with black polka dots on a white background around it.

A brand new optical illusion tricks ... like a cave or tunnel. The illusion consists of a large black ellipse surrounded by a dark halo on a white background filled with smaller black ellipses.

Forget the 'dress’ illusion ... at the test grid of black and white lines and confirm they do indeed look black and white. Then you look stare alternately at the square containing red and ...

In this optical illusion ... and creates the illusion of a faint white square. In our peripheral vision, Arnold says, “That can counteract the blurry black dot that is actually, physically ...

The French street artist JR has unveiled perhaps his most complex Italian trompe l’oeil illusion piece yet, turning a square outside ... terrain with layered black-and-white images.

Humans interpret things differently. And perception-based activities such as optical illusions can be a great way to activate the brain, because how we interpret these activities can often ...