Evidence map›Paper›PMID 33529181›Full record

ArticlePLoS computational biology2021

Neural surprise in somatosensory Bayesian learning.

Sam Gijsen, Miro Grundei, Robert T Lange, Dirk Ostwald, Felix Blankenburg

Abstract read
In one paragraph

Article in PLoS computational biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

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0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

20 citing papers in PubMed.

  1. Article
  2. Article
  3. The Somatosensory Mismatch Negativity.The European journal of neuroscience · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Active inference and the two-step task.Scientific reports · 2022
    Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Sam GijsenNeurocomputation and Neuroimaging Unit, Freie Universität Berlin, Germany.ORCID 0000-0003-3275-9022
Miro GrundeiNeurocomputation and Neuroimaging Unit, Freie Universität Berlin, Germany.ORCID 0000-0002-6396-9674
Robert T LangeBerlin Institute of Technology, Berlin, Germany.
Dirk OstwaldComputational Cognitive Neuroscience, Freie Universität Berlin, Germany.ORCID 0000-0002-3530-1845
Felix BlankenburgNeurocomputation and Neuroimaging Unit, Freie Universität Berlin, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tracking statistical regularities of the environment is important for shaping human behavior and perception. Evidence suggests that the brain learns environmental dependencies using Bayesian principles. However, much remains unknown about the employed algorithms, for somesthesis in particular. Here, we describe the cortical dynamics of the somatosensory learning system to investigate both the form of the generative model as well as its neural surprise signatures. Specifically, we recorded EEG data from 40 participants subjected to a somatosensory roving-stimulus paradigm and performed single-trial modeling across peri-stimulus time in both sensor and source space. Our Bayesian model selection procedure indicates that evoked potentials are best described by a non-hierarchical learning model that tracks transitions between observations using leaky integration. From around 70ms post-stimulus onset, secondary somatosensory cortices are found to represent confidence-corrected surprise as a measure of model inadequacy. Indications of Bayesian surprise encoding, reflecting model updating, are found in primary somatosensory cortex from around 140ms. This dissociation is compatible with the idea that early surprise signals may control subsequent model update rates. In sum, our findings support the hypothesis that early somatosensory processing reflects Bayesian perceptual learning and contribute to an understanding of its underlying mechanisms.

Indexed as

Models, NeurologicalAdolescentAdultAlgorithmsBayes TheoremComputational BiologyElectroencephalographyEvoked Potentials, SomatosensoryFemaleHumansLearningMaleMarkov ChainsModels, PsychologicalSomatosensory CortexYoung Adult

Identifiers

PMID33529181
PMCPMC7880500

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.