Behavioral and Brain Sciences



Short Communication

Universal generalization and universal inter-item confusability


Nick Chater a1, Paul M. B. Vitányi a2 and Neil Stewart a3
a1 Institute for Applied Cognitive Science, Department of Psychology, University of Warwick, Coventry, CV4 7AL, United Kingdom nick.chater@warwick.ac.uk http://www.warwick.ac.uk/fac/sci/Psychology/staff/academic.html#NC/ http://www.warwick.ac.uk/fac/sci/Psychology/staff/postgraduates.html#NS/
a2 Centrum voor Wiskunde en Informatica, 1098 SJ, Amsterdam, The Netherlands paulv@cwi.nl http://www.cwi.nl/~paulv/
a3 Department of Psychology, University of Warwick, Coventry, CV4 7AL, United Kingdom neil.stewart@warwick.ac.uk

Abstract

We argue that confusability between items should be distinguished from generalization between items. Shepard's data concern confusability, but the theories proposed by Shepard and by Tenenbaum & Griffiths concern generalization, indicating a gap between theory and data. We consider the empirical and theoretical work involved in bridging this gap. [Shepard; Tenenbaum & Griffiths]