title: Learning time-varying categories.
abstract: Many kinds of objects and events in our world have a strongly time-dependent quality. However, most theories about concepts and categories either are insensitive to variation over time or treat it as a nuisance factor that produces irrational order effects during learning. In this article, we present two category learning experiments in which we explored peoples' ability to learn categories whose structure is strongly time-dependent. We suggest that order effects in categorization may in part reflect a sensitivity to changing environments, and that understanding dynamically changing concepts is an important part of developing a full account of human categorization.
authors.affiliation: School of Psychology, University of Adelaide, Adelaide, South Australia, 5005, Australia. daniel.navarro@adelaide.edu.au
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Navarro
authors.forename: Andrew
authors.initials: A
authors.lastname: Perfors
authors.forename: Wai Keen
authors.initials: WK
authors.lastname: Vong
mesh_terms: D000328:Adult; D003210:Concept Formation / Q000502:physiology*; D005260:Female; D006801:Humans; D007858:Learning / Q000502:physiology*; D008297:Male; D008960:Models, Psychological; D013997:Time Factors; D055815:Young Adult