Skip to main content

Research Repository

Advanced Search

Generalization of prior information for rapid Bayesian time estimation

Roach, Neil W.; McGraw, Paul V.; Whitaker, David; Heron, James

Authors

NEIL ROACH NEIL.ROACH@NOTTINGHAM.AC.UK
Associate Professor

PAUL MCGRAW paul.mcgraw@nottingham.ac.uk
Professor of Visual Neuroscience

David Whitaker whitakerD@cardiff.ac.uk

James Heron j.heron2@bradford.ac.uk



Abstract

To enable effective interaction with the environment, the brain combines noisy sensory information with expectations based on prior experience. There is ample evidence showing that humans can learn statistical regularities in sensory input and exploit this knowledge to improve perceptual decisions and actions. However, fundamental questions remain regarding how priors are learned and how they generalise to different sensory and behavioural contexts. In principle, maintaining a large set of highly specific priors may be inefficient and restrict the speed at which expectations can be formed and updated in response to changes in the environment. On the other hand, priors formed by generalising across varying contexts may not be accurate. Here we exploit rapidly induced contextual biases in duration reproduction to reveal how these competing demands are resolved during the early stages of prior acquisition. We show that observers initially form a single prior by generalising across duration distributions coupled with distinct sensory signals. In contrast, they form multiple priors if distributions are coupled with distinct motor outputs. Together, our findings suggest that rapid prior acquisition is facilitated by generalisation across experiences of different sensory inputs, but organised according to how that sensory information is acted upon.

Journal Article Type Article
Publication Date Jan 10, 2017
Journal Proceedings of the National Academy of Sciences
Print ISSN 0027-8424
Electronic ISSN 1091-6490
Publisher National Academy of Sciences
Peer Reviewed Peer Reviewed
Volume 114
Issue 2
Pages 412-417
APA6 Citation Roach, N. W., McGraw, P. V., Whitaker, D., & Heron, J. (2017). Generalization of prior information for rapid Bayesian time estimation. Proceedings of the National Academy of Sciences, 114(2), 412-417. https://doi.org/10.1073/pnas.1610706114
DOI https://doi.org/10.1073/pnas.1610706114
Keywords Bayesian inference, Time perception, Sensorimotor learning
Publisher URL http://www.pnas.org/content/114/2/412
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

Files

AAM.pdf (810 Kb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





You might also like



Downloadable Citations

;