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Our ability to categorize some of these animals as “cats” and some as “dogs” helps us know which
ones are more likely to fetch a thrown ball and which ones might rub up against a person’s leg while
purring. Research on how people place objects into categories such as “cat” or “dog”—and also more
specifi cally, “Siamese” or “beagle”—is important for understanding how knowledge about the world
is represented in the mind.
Knowledge
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