categories - Categories What do we know about categories so...

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Categories (With thanks to cartoonist Roz Chast!) What do we know about categories so far? Perception is categorical What are categories, and why do we have them? A category is a kind of concept A concept provides a taxonomy of things, relations Without categories life would be chaotic Categories provide top-down information Dogs Cats Heads Tails 4 legs Fur Bear live young Despised by landlords Heads Tails 4 legs Fur Bear live young Despised by landlords
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Dogs Cats Heads Tails 4 legs Fur Bear live young Despised by landlords Bark Enthusiastic Heads Tails 4 legs Fur Bear live young Despised by landlords Purr Aloof Advantage of having categories: 1. To structure thought, memory, perception. Natural categories : features that naturally occur together define a category together. Objects in the same category share a “family resemblance”. is alive is alive has wings has fur sings growls Which one flies? Advantage of having categories: 1. To structure thought, memory, perception. Natural categories : features that naturally occur together define a category together. Objects in the same category share a “family resemblance”. 2. For cognitive economy Categories lead to cognitive economy Being in the same category emphasizes similarity. Being in a different category emphasizes distinctiveness. Dividing the world into categories involves tradeoffs between similarities and differences.
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1. Vertical (level of abstraction) Superordinate level Basic level Subordinate level animal cat Russian Blue Categories have 2 dimensions: 1. Vertical (level of abstraction) Superordinate level Relatively general Basic level Particularly important level! Subordinate level Highly specific TV show comedy Daily Show Superordinate Basic Subordinate Animal dog beagle musical instrument guitar electric guitar fruit apple macintosh tool hammer claw hammer clothing shirt dress shirt furniture chair barcalounger vehicle car convertible Basic level gives you the biggest increase in amount of information. Cognitive economy
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categories - Categories What do we know about categories so...

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