PSY270H1 Lecture Notes - Temporal Lobe, Semantic Network, Spreading Activation

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3 Feb 2013
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PSY270H1 Full Course Notes
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PSY270H1 Full Course Notes
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Categories determined by similarity: prototypes/exemplars: the network approach. Privileged levels of categories: representing relationships between categories: semantic networks, representing concepts between networks: the connectionist approach, categories represented in the brain, categories > definitions. A concept = a mental representation that is used for a variety of cognitive functions (memory, reasoning, language) Categorization = the process by which things are places into groups (categories) Categories help us to understand objects in our environment = for us to take mental shortcuts and use knowledge from our experiences. Once you know something is in a category, you know a lot of general things about it and can focus your energy on specifying what is special about it. The definitional approach to categorization doesn"t work because most categories contain members that do not conform to the definition: many natural objects & man-made objects are hard to identify with a strict definition due to their diversity.

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