PSYB57H3 Chapter : Concepts and Categorization
Document Summary
category: a class of similar things (objects or entities) that share one of two things: 2. an essential core similarity in perceptual, biological or functional properties. allows people to make predictions and act accordingly. dominant until the 1970s; dates back to aristotle. classical view of concepts: all examples/instances of a concept share features. each feature is individually necessary and collectively sufficient. individually necessary: each example must have the feature if it is to be regarded as a member of the concept. collectively sufficient: anything with each feature in the set is automatically an instance of the concept. concept mentally represents lists of features: concepts are not representations of specific examples, but of abstractions of info about properties and characteristics. something has either all necessary and sufficient features (part of a category) or is lacking one or more of them (not part of the category)
