52 research outputs found
Exemplar by feature applicability matrices and other Dutch normative data for semantic concepts
From prototypes to caricatures: Geometrical models for concept typicality
In three studies, we investigated to what extent a geometrical representation in a psychological space succeeds in predicting typicality in animal, natural food and artifact concepts and whether contrast categories contribute to the prediction. In Study 1, we compared the predictive value of a family resemblance-based prototype model with a geometrical centroid model in which similarity is defined in terms of distance to the centroid. The geometrical centroids outperformed family resemblance, with increasingly better predictions as the number of underlying dimensions increased. In Study 2, we investigated possible contrast effects by moving the reference point to an optimal prediction location. For most of the categories, the optimal typicality prediction was obtained by moving the prediction point away from the centroid in the opposite direction of the contrast categories, comparable to a caricature. This result strongly suggests that contrast categories play an important role in typicality. Finally, Study 3 showed that the contrast effects on typicality can be situated in the underlying similarity representation. (c) 2006 Elsevier Inc. All rights reserved.status: publishe
Recommended from our members
Family Resemblance and Measures of Central Tendency in an M-dimensional Space as Determinants of Typicality in Categories
Object naming and later lexical development
Onderzoeksgroep Hogere cognitie en individuele verschillen. Afdeling Psychodiagnostiek en psychologische begeleiding.status: publishe
Recommended from our members
Mowgli in the jungle of words: Comprehension and later lexical development.
- …