Natural optical illusions are interesting because they make us think about how we see the world around us. It also gives us important information about how the brain works.
Researchers have been studying how optical illusions affect the brain for years. They have come up with a number of studies that show how different parts of the brain react to optical illusions.
Now is the time to see how well you can notice things. Take this test to see if you can find an Odd Elephant that is hidden within 12 seconds.