One important function of categories is to permit rich inductive inferences. Prior work shows that children use category labels to guide their inductive inferences. However, there are competing theories to explain this phenomenon, differing in the roles attributed to conceptual information vs. perceptual similarity. Seven experiments with 4- to…

Previous research indicates that the ontological status that adults attribute to categories varies systematically by domain. For example, adults view distinctions between different animal species as natural and objective, but view distinctions between different kinds of furniture as more conventionalized and subjective. The present work (N=435;…

Historically, accounts of object representation and perceived similarity have focused on intrinsic features. Although more recent accounts have explored how objects, scenes, and situations containing common relational structures come to be perceived as similar, less is known about how the perceived similarity of parts or objects embedded within…

Studied the effect of exposure to principled changes in concept formation in four experiments involving 280 undergraduate and graduate students. Analyses reveal clear evidence of a transformational path with systematic training. Discusses implications for theories of similarity and categorization. Contains 83 references. (SLD)

The conceptual categories that children have developed in their second year were studied in five experiments using object manipulation tasks. Subjects included 152 children from 18 to 31 months of age. These very young children had formed global conceptions of many domains of objects. (SLD)

Two implications of best-example theory for category acquisition were tested using a set of artificial concrete object categories. Categories acquired from initial exposure to good exemplars were learned more easily and accurately. People learn the best exemplars are category members before learning the poor exemplars are category members.…

The current research investigates infants' perception of a novel object from a category that is familiar to young infants: key rings. We ask whether experiences obtained outside the lab would allow young infants to parse the visible portions of a partly occluded key ring display into one single unit, presumably as a result of having categorized it…

Four experiments with college undergraduates examine interactions between linearly separable and nonlinearly separable abstract category structures, different knowledge types, and instructions on classification learning tasks. Implications for independent cue models and interactive cue models are discussed. (LMO)