Dissociations between categorization and similarity judgments as a result of learning feature distributions
Catégorie
Journal Article
Auteurs
Thibaut, J.-P., Dupont, M., Anselme, P.
Année
2002
Titre
Dissociations between categorization and similarity judgments as a result of learning feature distributions
Journal / Livre / Conférence
Memory & Cognition
Résumé
A dissociation between categorization and similarity was found by Rips (1989). In one experiment, Rips found that a stimulus halfway between a pizza and a quarter was categorized as a pizza but was rated as more similar to a quarter. Smith and Sloman (1994) discussed these results in terms of the role of necessary and characteristic features. In two experiments, participants had to learn to categorize novel artificial shapes composed of a nonsalient necessary feature combined with a salient characteristic feature. Participants categorized stimuli on the basis of a necessary feature, whereas their similarity judgments relied on characteristic features. The role of deep (essential) features in dissociations is considered. Results are discussed in terms of the differences between requirements of categorization and similarity judgments.
Issue
4
Volume
30
Pages
647-656