'Most are unaware that seeing is largely a creative act, a process that presents us with a version of reality rather than an accurate reproduction.' Harrisonauthor explains the surreal way that human vision works.
A Quick Glance at How We See
While strange and imperfect, our vision works well enough for us most of the time. After all, our species can juggle, fly airplanes, and paint landscapes. But cognitive missteps are common because the normal vision process includes seeing things that are not there and missing or wildly misinterpreting things that are.
Vision takes up a large portion of overall brain activity, so it makes sense that the brain would seek efficiency by minimizing data clutter. When we look at a lawn, we do not need to be swamped with the visual detail of every blade of grass. Unfortunately, most people probably don’t realize just how much detail is left out. The brain only shows us an extremely small area in conscious focus. Typically, more than 99 percent of the surrounding environment is effectively absent. We miss a lot .
The influence of belief on our visual perceptions likely explains countless eyewitness claims of extraordinary and unlikely phenomena. An unidentified light in the sky, for example, might be seen very differently by people with different beliefs. Based on what we know about the interplay between belief and vision, enthusiastic UFO believers would be more likely to see an obvious alien spaceship in considerable detail than those who do not hold the prior belief.
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