CLPS 0200 Lecture Notes - Lecture 9: Spreading Activation, Leading Question, Noam Chomsky
11 Nov 2016
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03-10: semantic and recovered memory and language network representations of semantic memory inheritance hierarchies: each node inherits its properties from parents if you are part of one group you inherit the characteristics/features of all the ones above. Only take inherited property if you don"t have an exception. Aka ostrich can"t fly: proximal properties easier/faster to answer than hierarchical ones. Proportional to number of links you have to traverse: very efficient. Avoid representing properties multiple times: but cost for retrieval = search process. A canary is a canary < a canary is a bird < a canary is an animal. But these representations are controversial because of some atypical items. Ex. faster to verify penguin = animal than. Semantic/associative networks penguin = bird links represent associations between words or concepts (not hierarchy) less structured than hierarchical: priming activates the related words spreads activation to the desired word. Support for spreading activation: drm task and semantic priming.
