How does perception affect critical thinking?

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Two useful ways of thinking about the relationship between perception and critical thinking are a) separating sensation from perception and b) separating perception from other analytical skills necessary for critical thinking.

In modern neurology, psychology, and similar disciplines, sensation is the "raw data" that our eyes, ears, and other sense organs feed our brains. It is the patterns of light that strike our eyes, the vibrations that strike our ears, and so on. Perception, however, is a phenomenon that occurs within the mind. It is how we "make sense" of all of the data that we are getting from our sense organs. Not only does that not mean that perception is not always unbiased (we can perceive things differently from how they actually are, as in the case of an "optical illusion"—for example, lines drawn on a wall in such a way as to look like they should intersect when they are actually parallel or vice versa) but that there isn't necessarily any one "right" way to perceive...

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