Optical Inversion
When we look at the world around us, we must remember that the veil of human perception means things are not always what they seem. When you glance at an object, the image received actually appears inverted on the retina. Our eyes in fact see everything upside down, but incredibly, our brain compensates by default, allowing us to perceive the world right side up. The brain’s ability to be misled in this regard presents an eerie insight into the potential for manipulation of human experience. In a series of experiments, volunteers wore lenses to turn the world upside down. This reversal caused the brain of the subjects to stop compensating for the retinal inversion in order to see upright. When the lenses were removed, the participants saw upside down for a time.
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