title: The fickle nature of similarity change as a result of categorization.
abstract: Several researchers have reported that learning a particular categorization leads to compatible changes in the similarity structure of the categorized stimuli. The purpose of this study is to examine whether different category structures may lead to greater or less corresponding similarity change. We created six category structures and examined changes in similarity within categories or between categories, as a result of categorization, in between-participant conditions. The best supported hypothesis was that the ease of learning a categorization affects change in within-categories similarity, so that greater (within-categories) similarity change was observed for category structures that were harder to learn.
authors.affiliation: a Department of Psychology , City University London , London , UK.
authors.forename: Emmanuel M
authors.initials: EM
authors.lastname: Pothos
authors.forename: Irene
authors.initials: I
authors.lastname: Reppa
mesh_terms: D003210:Concept Formation / Q000502:physiology*; D004193:Discrimination Learning / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D014796:Visual Perception / Q000502:physiology*; D014852:Wales; D055815:Young Adult
keywords: Categorical perception; Categorization; Similarity