BCS 153 Lecture 42: BCS 42

• School: University of Rochester
• Department: Brain and Cognitive Sciences
• Course: BCS 153
• Professor: Yang

Document Summary

Probabilistic view: not all defining properties required, based on the weight of certain critical properties. Categorization determined by similarity threshold: typicality effect: the one with the characteristic feature highest similarity threshold. Exemplar view: categorization based on similarity between exemplar and category, category range determined by exemplars, exemplars can correlate with each other within a category, allows for a fuzzy boundary between categories. Components of a concept miller & johnson-laird (1976: core: key defining properties grandmother: parent"s mother, female, has grandchildren, identification procedure: typical perceptual features used for categorization. Grandmother: grey/white hair, some wrinkles on face, etc. Categorization and justification: judging by age perceptual features identification procedure, judging by the defining feature (having a grandchild) core of concept inside a category: category cohesiveness constraints for a category. To determine range bad vs. good category any black square ranging from 1 to. 10100 sq ft vs. any black square with a circle inside it ranging from 10 to 100 sq ft .