{"pk":28392,"title":"Human generalization of an alternating category structure","subtitle":null,"abstract":"Leading models of human categorization posit that an observed stimulus is classified according to its similarity to storedreference points. In the present study, we investigate a category structure that elicits human generalization behavior notpredicted by the reference point framework. In a supervised classification learning task, participants were presented withsimple continuous-valued stimuli (one- or two-dimensional) based on an underlying category structure with a strict patternof alternating regions assigned to each class (e.g., A A B B A A B B ? ?). The participants were then tested on newstimuli with dimension values beyond the range seen in training. A large portion of participants classified new items byextrapolating the alternation sequence they did not classify based on similarity to the nearby reference points. Theseresults pose a challenge to reference point models and raise important issues about concept formation and generalization.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[],"section":"Abstracts-Posters","is_remote":true,"remote_url":"https://escholarship.org/uc/item/7cq6x7t9","frozenauthors":[{"first_name":"Matt","middle_name":"","last_name":"Wetzel","name_suffix":"","institution":"Binghamton University","department":""},{"first_name":"Kenneth","middle_name":"","last_name":"Kurtz","name_suffix":"","institution":"Binghamton University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2018-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/28392/galley/18155/download/"}]}