Bayesian cue integration as a developmental outcome of reward mediated learning

Average human behavior in cue combination tasks is well predicted by Bayesian inference models. As this capability is acquired over developmental timescales, the question arises, how it is learned. Here we investigated w
Average human behavior in cue combination tasks is well predicted by Bayesian inference models. As this capability is acquired over developmental timescales, the question arises, how it is learned. Here we investigated whether reward dependent learning, that is well established at the computational, behavioral, and neuronal levels, could contribute to this development. It is shown that a model free reinforcement learning algorithm can indeed learn to do cue integration, i.e. weight uncertain cues according to their respective reliabilities and even do so if reliabilities are changing. We also consider the case of causal inference where multimodal signals can originate from one or multiple separate objects and should not always be integrated. In this case, the learner is shown to develop a behavior that is closest to Bayesian model averaging. We conclude that reward mediated learning could be a driving force for the development of cue integration and causal inference.
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Metadaten
Author:Thomas H. Weisswange, Constantin A. Rothkopf, Tobias Rodemann, Jochen Triesch
URN:urn:nbn:de:hebis:30-114736
DOI:http://dx.doi.org/10.1371/journal.pone.0021575
ISSN:1932-6203
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=21750717
Parent Title (English):PLoS one
Document Type:Article
Language:English
Date of Publication (online):2011/09/07
Year of first Publication:2011
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2011/09/07
Note:
Copyright: © 2011 Weisswange et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Source:PLoS ONE 6(7): e21575. doi: 10.1371/journal.pone.0021575
HeBIS PPN:276267079
Institutes:Frankfurt Institute for Advanced Studies (FIAS)
Dewey Decimal Classification:370 Bildung und Erziehung
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 3.0

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