You are sitting outside, watching a baseball game. You sniff the air and recognize a familiar scent—hot dogs. You look around and sure enough, there is a hotdog seller passing by. Suddenly, you hear the crack of a bat, then a cheering crowd. It's a home run! In just a matter of moments, you have understood a great deal about your surroundings. Your senses send signals to your brain, and it is up to your brain to reconstruct the events that triggered the signals. The experience your brain recreates is known as perception.

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