08-Topics-Categorization

08-Topics-Categorization - Introduction to Cognitive...

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Introduction to Cognitive Science PSYCH 1102/COGST 1101/LING 1170/ PHIL 1910/CS 1710
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Topics: Categorization One of these things is not like the others…
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Outline What is categorization? Yes, Breton’s pets are, in fact, dogs Prototypes Categories as bull’s eyes Exemplars Categories as a bag of marbles Getting concepts into the mind
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What is categorization? Yes, Breton’s pets are, in fact, dogs
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What is categorization? Thag, your typical hunter-gatherer,  is  foraging in the North American plains just  after the last Ice Age… Thag hears a sound  off to his right. He  turns, and sees a blur of yellow, the  gleam of something white, the twitch of  the brush and hears a low growl… What should he do?
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What is categorization?
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What is categorization? Thad, your typical college student, is  foraging in the North American Kwik-E- Mart just after last call… Thad hears a sound off to his right. He  turns, and sees a blur of yellow, the  gleam of something white, he twitches  his fingers as he hears his stomach  growl… What should he do?
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What is categorization?
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What is categorization? We can recognize separate instances of an  object as the same object
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What is categorization? Sensation Perception Cognition Action We  categorize  everything all the time
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What is categorization? We  categorize  everything all the time Sounds Spoken language Words Colors Visual objects People Ideas Emotions
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What is categorization? What information might we use to categorize  things? Potentially some set of features that define a  category What is a square?
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What is categorization?
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What is categorization? Classical view of categorization features for membership Features are singly necessary To be a member of the category you must have the  feature Features are jointly sufficient Anything with all the features is a member of the  category SQUARE: 4 equal angles, 4 equal sides.
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What is categorization? What information might we use to categorize  things? Potentially some set of features that define a  category What is a bachelor?
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What is categorization?
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What is categorization? What information might we use to categorize  things? Potentially some set of features that define a  category What is a dog?
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What is categorization? 4 legs: Is a 3 legged dog a dog?
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This note was uploaded on 02/10/2010 for the course COGST 1101 taught by Professor Spivey,m during the Fall '07 term at Cornell.

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08-Topics-Categorization - Introduction to Cognitive...

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