Chapter 9: Concepts and Generic Knowledge Flashcards
Familiar resemblance
The idea that members of a category resemble each other (shared features that may shift over time)
Prototype
A single “best example” of a category
(E.g. A golden retriever may be the prototypical dog)
Typicality
Degree to which a particular case is typical for its kind
Graded membership
The idea that some members of a category are better members and therefore are more firmly in that category than other members
Sentence verification task
Experimental procedure used for studying memory in which participants are given simple sentences and most respond as quickly as possible whether the sentences is true or false
Production task
Participants are asked to name as many examples as possible
Rating task
Task in which participants must evaluate some item or category with reference to some dimension
EX: Evaluate how “birdy” these birds are on a scale from 1 to 7
Basic-level categorization
Level of categorization hypothesized as the “natural” and most informative level, neither too specific nor too general
E.g. “chair” over “armchair” and “furniture”
Exemplar-based reasoning
Reasoning that draws on knowledge about specific category members (exemplars) rather than on general information about the overall category
Anomia
Disorder arising from specific forms of brain damage, in which the person loses their ability to name certain objects
Hub and spoke model
Proposal for how concepts may be represented in the brain
“Hub” = tissue in anterior temporal lobes (integrates info from many brain areas)
“Spokes” = represent more specific elements of the concept (e.g. visual info, action info, etc.)
Propositions
Smallest unit of knowledge that can be either true or false
Connectionist networks
Proposed systems of knowledge representation that rely on distributed representations and that therefore require parallel distributed processing to operate on the elements of a representation
Parallel distributed processing PDP
System of handling information in which many steps happen at once and in which various aspects of the problem or task are represented only in a distributed way