Predictive processing simplified: the infotropic machine

Thornton, Chris (2017) Predictive processing simplified: the infotropic machine. Brain and Cognition, 112. pp. 13-24. ISSN 0278-2626

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On a traditional view of cognition, we see the agent acquiring stimuli, interpreting these in some way, and producing behavior in response. An increasingly popular alternative is the predictive processing framework. This sees the agent as continually generating predictions about the world, and responding productively to any errors made. Partly because of its heritage in the Bayesian brain theory, predictive processing has generally been seen as an inherently Bayesian process. The `hierarchical prediction machine' which mediates it is envisaged to be a specifically Bayesian device. But as this paper shows, a specification for this machine can also be derived directly from information theory, using the metric of predictive payoff as an organizing concept. Hierarchical prediction machines can be built along purely information-theoretic lines, without referencing Bayesian theory in any way; this simplifies the account to some degree. The present paper describes what is involved and presents a series of working models. An experiment involving the conversion of a Braitenberg vehicle to use a controller of this type is also described.

Item Type: Article
Keywords: predictive processing, predictive coding, hierarchical prediction machine, Bayesian brain, information theory, cognitive informatics
Schools and Departments: School of Engineering and Informatics > Informatics
Depositing User: Chris Thornton
Date Deposited: 10 May 2016 08:52
Last Modified: 26 Apr 2023 14:35

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