Notes for Lecture on Chapter 6
Notes for Lecture on Chapter 6 PSYC2014
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Mariana de la Maza
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This 2 page Class Notes was uploaded by Mariana de la Maza on Sunday March 29, 2015. The Class Notes belongs to PSYC2014 at George Washington University taught by James Higgins in Winter2015. Since its upload, it has received 79 views. For similar materials see Cognitive Psychology in Psychlogy at George Washington University.
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Date Created: 03/29/15
Chapter 6 Concepts and Categories March 24 0 Work smart not hard 0 Classi cation of things in the brain allows you to structure your thoughts and think of things in an efficient way 0 Classical view Probabilistic Prototype View 0 Accounts for typicality o Unitary representation 0 Prototype Need to consider function 0 Lacks context sensitivity Doesn t take into account how frequently you see something in the world Your representation of a bird might be a pigeon bc you don t live near robins example 0 So there is Exemplar view 0 Mini prototypes 0 Each exemplar give you something to make judgments on what items in the world are 0 All of these things are represent 0 No unitary description more of a whole bunch of single prototypes o Gives more exibility allows you to recognize colleague just as quickly as a cocker spaniel No unitary description 0 You have a central representation then a bunch of categories where different animals that are more similar to each other are 0 All accessed equally quickly 0 Allows you to accomplish this in a better way You can predict people s frequency and variability There are functions associated with different features animals have 0 Can predict the in uence of frequencies 0 Beyond Similarity Theories 0 Sometimes you need additionally explanatory power than images and similarities such as features 0 Theory View forces you to take a bunch of propositions but now you can add in functions beyond observable features Ex Mutilated poodles Know a theory for something test that theory Heuristic guess Things have different features Not anything is what we see in the surface OOOOO 0 Summary Conceptual representation We have multiple ways of seeing things 0 Between Category Structure 000000 How can you categorize different groups of things In this hierarchy you have levels Top level features get passed on to the lower levels Taxonomic organization We all choose a level in the hierarchy when naming things Most people name things in the same way Rosch s Explanation O O O In formativeness we want as much information as possible Laziness Efficiency Mind is trying to get the most amount of information at the lowest effort 0 Basic Level 0 O O Context Sometimes good to have a lot of info such as in a chair shop Expertise When you gain expertise you may have a better access to categories 0 Ex Bird experts classify birds more speci cally than quotbirdsquot What makes something a basic level Highest level at which entities share parts Rosch compromise between minimizing effort and maximizing info Differentiation Hypothesis 2 principles 0 Speci city maximize information Distinctiveness Superordinate Fruit vs vegetable They are distinctive but not very speci c Subordinate level Speci c
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