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Our brains create illusions by combining images based on expectations, leading to occasional confusion. This fundamental aspect of perception explains why we see optical illusions. Examples include television and computer screens, which our brains fill in the missing details, resulting in perceived movement and colors.
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The Human brain put images together because it has learned to expect things; sometimes the data might get a little confused. We may see an illusion because we know what we are expected to see, even though part of a picture or design may not be completely there. The basis of this is in how we perceive things.
That almost explains everything right there. If our brain and eyes did not function like they do, we would not see illusions like we do.
One example of optical illusion is the television. The television just shows us a continuous flow of still pictures, one right after the other. Your eyes, along with your brain, fill in all of the empty spots. Our brain has learned to expect movement. As a result, our brain can fill in all of the missing pieces and the pictures on the television appear to be moving, even though they really aren’t!
A computer monitor is also one big optical illusion. Sometime, when you have a chance, look at a computer screen very closely for a minute or two. You will notice that your computer screen is made up of tiny red, green, and blue dots. The illusion here is that you see more than just red, green, and blue dots; you see thousands of different colors. Our brains put the red, green, and blue dots together to make the colors!
Optical illusions just trick you into seeing something else. They are an error in our perception of the illusion.
Look at the words below from left to right. Say out loud the COLOR not the word. This is a left to right conflict. The right side of your brain tries to say the color while the left insists on reading the word.
