Journal of the Society for Mathematical Psychology The Journal of Mathematical Psychology publishes research articles, monographs and reviews, notes and comments, and book reviews in all areas of mathematical and theoretical psychology. Empirical research directly relevant to theoretical questions within psychology is welcome. Papers on fundamental measurement and on mathematical models, such as those based on connectionist, other neural network, or information processing concepts, continue to be of special interest to the journal. Also welcome are theoretical work and empirical research bearing on models in such areas as animal behavior, artificial intelligence and computer simulation of psychological processes, decision theory, human factors and human computer interaction, learning and memory, motivational dynamics, problem solving, psycholinguistics, psychophysics, psychometrics (if the work bears on the explication of psychological concepts or process models), and sensation and perception. Online: The Journal of Mathematical Psychology Online Submission to Journal of Mathematical Psychology: www.ees.elsevier.com/jmp Editors Editor Jerome Busemeyer - Indiana University Editorial Advisory Board William K. Estes Indiana University Peter C. Fishburn AT&T Laboratories-Research Patrick Suppes Stanford University R. Duncan Luce University Of California - Irvine   Board of Editors F. Gregory Ashby University of California - Santa Barbara William H. Batchelder University of California - Irvine David Budescu University of Illinois Hans Colonius Universität Oldenburg Adele Diederich Jacobs University Bremen - Germany Jean-Paul Doignon Université Libre de Bruxelles Ehtibar N. Dzhafarov Purdue University Jean-Claude Falmagne University of California - Irvine Jeff Rouder University of Missouri Jeurgen Heller University of Graz Austria John Kruschke Indiana University Mathieu Koppen Radboud University Nijmegen Netherlands Mark Machina University of California - San Diego A.A.J. Marley McGill University J.M. Miyamoto University of Washington In Jae Myung The Ohio State University Yutaka Nakamura University of Tsukuba Japan Z. Pizio Purdue University Roger Ratcliff Ohio State University Michel Regenwetter University of Illinois at Urbana-Champaign Fred S. Roberts Rutgers University Richard Schweikert Purdue University Richard M. Shiffrin Indiana University P.L. Smith University of Melbourne Reinhard Suck Universtät Osnabrück James Townsend Indiana University Shimon Ullman Weizmann Institute of Science Trish Van Zandt Ohio State University Jun Zhang University of Michigan Richard Chechile Tufts University Book Review Editor Adele Diederich Jacobs Unversity Bremen Germany Past Editors Richard Schweikert (2000-2004) Hans Colonius (1995-1999) Thomas Wallsten (1990-1994) James Townsend (1985-1989) A A J Marley (1980-1984) William Batchelder (1976-1979) William Batchelder and R. Duncan Luce (1975) J. E. Keith Smith (1971-1974) Richard C. Atkinson (1964-1970)