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It's not how many dimensions you have, it's what you do with them: Evidence from speech perception

Published online by Cambridge University Press:  19 July 2005

Bob McMurray  and
David Gow
Bob McMurray*
Affiliation:
Department of Psychology, University of Iowa, Iowa City, IA 52242
David Gow*
Affiliation:
Neuropsychology Laboratory, Massachusetts General Hospital, Boston, MA 02114
*
bob-mcmurray@uiowa.edu
gow@helix.mgh.harvard.edu
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Abstract

Contrary to Pothos, rule- and similarity-based processes cannot be distinguished by dimensionality. Rather, one must consider the goal of the processing: what the system will do with the resulting representations. Research on speech perception demonstrates that the degree to which speech categories are gradient (or similarity-based) is a function of the utility of within-category variation for further processing.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 28 , Issue 1 , February 2005 , pp. 31
Copyright
Copyright © Cambridge University Press 2005

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