The brain has two hemispheres, each divided into four lobes. Each lobe is responsible for different functions. The occipital lobe is entirely devoted to vision, which means it’s the place where visual illusions happen.
Take a look at these visual illusions and see if you can figure out what is really going on with them. The answers are at the very bottom the screen, waayyyyyy down the page.
Are the squares inside the blue and yellow squares all the same color?
Does Lincoln’s face look normal?
Can you see a baby?
Colored Squares: The smaller squares inside the blue and yellow squares are all the same color. They seem different (magenta and orange) because a color is perceived differently depending on its relation to adjacent colors (here blue or yellow depending on the outer square).
Abe Lincoln: It seems normal but now, take a look at it upright: Lincoln’s eyes don’t look normal at all.
Baby: A wonderful example of an illusory contour! The baby’s head is on the left, the baby’s feet are against the trunk of the tree on the right.
h/t Sharp Brains