With numerous articles about optical illusions with images that trick the mind orbiting social media, you’ve probably wondered how they work. One of these images is the one shown in this article and apparently only 1% of the people can solve it. The photograph is supposed to have an animal (panda) that a very low percent of people can see.

This is called the McCollough effect which is a trick on the mind. After staring at a colored grating for several minutes, your brain will start to see a pink tinge or other colors when viewing the black and white stripes.

This visual illusion is called an afterimage since you’re removing the stimulus but the sight persists. Scientists claim that it results from a continued activation of our visual system. Strong colors make a bigger impression on the visual system. They trick it into believing that you’re still seeing the colors when they’re not there.