Cited by 1,156Embodied and Extended CognitionNeural dynamics and brain functionMemory and Neural Mechanisms

The DOI matches its Crossref record; 113 of the 113 references it cites were found in a registry or an index.

Active Inference: A Process Theory

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Abstract

This article describes a process theory based on active inference and belief propagation. Starting from the premise that all neuronal processing (and action selection) can be explained by maximizing Bayesian model evidence—or minimizing variational free energy—we ask whether neuronal responses can be described as a gradient descent on variational free energy. Using a standard (Markov decision process) generative model, we derive the neuronal dynamics implicit in this description and reproduce a remarkable range of well-characterized neuronal phenomena. These include repetition suppression, mismatch negativity, violation responses, place-cell activity, phase precession, theta sequences, theta-gamma coupling, evidence accumulation, race-to-bound dynamics, and transfer of dopamine responses. Furthermore, the (approximately Bayes’ optimal) behavior prescribed by these dynamics has a degree of face validity, providing a formal explanation for reward seeking, context learning, and epistemic foraging. Technically, the fact that a gradient descent appears to be a valid description of neuronal activity means that variational free energy is a Lyapunov function for neuronal dynamics, which therefore conform to Hamilton’s principle of least action.

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Research works printed but not linked: 9

  1. Attias H., 2003, Proc. of the 9th Int. Workshop on Artificial Intelligence and Statistics
  2. Barto A., 2004, Proceedings of the 3rd International Conference on Development and Learning
  3. FitzGerald T., 2014, Front. Hum. Neurosci., 8
  4. Friston K., 2012, Frontiers in Neurorobotics, 6
  5. Jaynes E. T., 1957, Physical Review Series II, 106, 620
  6. Klyubin A. S., 2005, Proc. CEC 2005. IEEE, 128
  7. Mirza M. B., 2016, Frontiers in Computational Neuroscience, 10
  8. Schmidhuber J., 1991, Proc. International Joint Conference on Neural Networks, 1458
  9. van den Broek J. L., 2010, UAI, 6, 1

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Metadata

Authors
Friston, K., FitzGerald, T., Rigoli, F., Schwartenbeck, P., & Pezzulo, G.
Affiliations
  • Wellcome Centre for Human Neuroimaging (GB)
  • National Research Council (IT)
Corresponding author
  • Friston, Karl
  • FitzGerald, Thomas
  • Rigoli, Francesco
  • Schwartenbeck, Philipp
  • Pezzulo, Giovanni
Venue
Neural Computation
Publisher
MIT Press
Published
2017-01
Volume
29
Issue
1
Pages
1-49
ISSN
  • 0899-7667 (ISSN-L)
  • 1530-888X
OpenAlex
W2552810632
Cited by
1,156
References
113
Citations by year
2026: 142 · 2025: 145 · 2024: 124 · 2023: 129 · 2022: 145 · 2021: 147 · 2020: 155 · 2019: 73 · 2018: 61 · 2017: 35
FWCI
35.50
Type
journal article
Language
en
Open access
Locations
  • Neural Computation (publishedVersion)
  • PubMed (publishedVersion)
  • City Research Online (City University London) (submittedVersion)
  • UEA Digital Repository (University of East Anglia) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • Wellcome Trust (088130/Z/09/Z)
  • Österreichischen Akademie der Wissenschaften
  • Universität Salzburg
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Embodied and Extended Cognition
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
active inference, variational free energy, marginal likelihood, gradient descent, neural dynamics, Markov decision process, repetition suppression, mismatch negativity, place cells, phase precession, theta sequences, theta-gamma coupling, evidence accumulation, dopamine, reward seeking, contextual learning, Lyapunov function, Hamilton's principle of least action, action selection

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