This Incredible Optical Illusion Will Make You See A Hole In Your Hand

But what is actually happening here? Braincraft’s Vanessa Hill explains that the illusion is caused by something called binocular rivalry. “Two different images are being shown to each of your eyes. If your brain can’t combine these two images, it just suppresses the image in one eye and your other eye becomes more dominant,” she said. “In this case your hand will generally stay suppressed from your awareness because it’s the weakest stimulus.”