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  Uncertainty in learning, choice and visual fixation

Stojić, H., Orquin, J., Dayan, P., Dolan, R., & Speekenbrink, M. (2020). Uncertainty in learning, choice and visual fixation. Proceedings of the National Academy of Sciences of the United States of America, 117(6), 3291-3300. doi:10.1073/pnas.1911348117.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-78C4-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-A600-F
Genre: Journal Article

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 Creators:
Stojić, H, Author
Orquin, J, Author
Dayan, P1, 2, Author              
Dolan, R, Author
Speekenbrink, M, Author
Affiliations:
1Department of Computational Neuroscience, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_3017468              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: Uncertainty plays a critical role in reinforcement learning and decision making. However, exactly how it influences behavior remains unclear. Multiarmed-bandit tasks offer an ideal test bed, since computational tools such as approximate Kalman filters can closely characterize the interplay between trial-by-trial values, uncertainty, learning, and choice. To gain additional insight into learning and choice processes, we obtained data from subjects’ overt allocation of gaze. The estimated value and estimation uncertainty of options influenced what subjects looked at before choosing; these same quantities also influenced choice, as additionally did fixation itself. A momentary measure of uncertainty in the form of absolute prediction errors determined how long participants looked at the obtained outcomes. These findings affirm the importance of uncertainty in multiple facets of behavior and help delineate its effects on decision making.

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 Dates: 2019-062020-012020-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1073/pnas.1911348117
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Title: Proceedings of the National Academy of Sciences of the United States of America
  Other : Proc. Acad. Sci. USA
  Other : Proc. Acad. Sci. U.S.A.
  Other : Proceedings of the National Academy of Sciences of the USA
  Abbreviation : PNAS
Source Genre: Journal
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Publ. Info: Washington, D.C. : National Academy of Sciences
Pages: - Volume / Issue: 117 (6) Sequence Number: - Start / End Page: 3291 - 3300 Identifier: ISSN: 0027-8424
CoNE: https://pure.mpg.de/cone/journals/resource/954925427230