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Perception

Perception is the mental process of selecting, organizing and interpreting
information gained through the senses. It is the subject of study in
cognitive science.

Perception defines reality. As we move about in the world, we create a model
of how the world works. By learning new information, our perception of the
world changes and in a sense also our reality.

Perception can also be tricked: an ambiguous image has multiple
interpretations on the perception level. The ambiguity confuses the brain. A
quantitative realtionship between physical stimuli and perceprion is the
Weber-Fechner Law.

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