Behavioral and Brain Sciences

Open Peer Commentary
Levelt et al.: Lexical access in speech production

Modeling a theory without a model theory, or, computational modeling “after Feyerabend”

Arthur M. Jacobs a1 and Jonathan Grainger a2
a1 Fachbereich Psychologie, Philipps-University Marburg, D-35032 Marburg, Germany [email protected]
a2 CREPCO-CNRS, Université de Provence, 13621 Aix-en-Provence, France [email protected]


Levelt et al. attempt to “model their theory” with WEAVER++. Modeling theories requires a model theory. The time is ripe for a methodology for building, testing, and evaluating computational models. We propose a tentative, five-step framework for tackling this problem, within which we discuss the potential strengths and weaknesses of Levelt et al.'s modeling approach.