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Cognitive systems optimize energy rather than information

Published online by Cambridge University Press:  25 August 2011

Arthur B. Markman
Affiliation:
Department of Psychology, University of Texas, Austin, TX 78712. markman@psy.utexas.eduhttp://homepage.psy.utexas.edu/homepage/Faculty/Markman/PSY394/kreps11.htmlrotto@mail.utexas.edu
A. Ross Otto
Affiliation:
Department of Psychology, University of Texas, Austin, TX 78712. markman@psy.utexas.eduhttp://homepage.psy.utexas.edu/homepage/Faculty/Markman/PSY394/kreps11.htmlrotto@mail.utexas.edu

Abstract

Cognitive models focus on information and the computational manipulation of information. Rational models optimize the function that relates the input of a process to the output. In contrast, efficient algorithms minimize the computational cost of processing in terms of time. Minimizing time is a better criterion for normative models, because it reflects the energy costs of a physical system.

Type
Open Peer Commentary
Copyright
Copyright © Cambridge University Press 2011

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