Information and efficiency in the nervous system-a synthesis.
Open accessAbstract
In systems biology, questions concerning the molecular and cellular makeup of an organism are of utmost importance, especially when trying to understand how unreliable components--like genetic circuits, biochemical cascades, and ion channels, among others--enable reliable and adaptive behaviour. The repertoire and speed of biological computations are limited by thermodynamic or metabolic constraints: an example can be found in neurons, where fluctuations in biophysical states limit the information they can encode--with almost 20-60% of the total energy allocated for the brain used for signalling purposes, either via action potentials or by synaptic transmission. Here, we consider the imperatives for neurons to optimise computational and metabolic efficiency, wherein benefits and costs trade-off against each other in the context of self-organised and adaptive behaviour. In particular, we try to link information theoretic (variational) and thermodynamic (Helmholtz) free-energy formulations of neuronal processing and show how they are related in a fundamental way through a complexity minimisation lemma.
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Minimizing complexity implicitly maximizes the thermodynamic efficiency of information processing in the brain.
“The premise is that minimizing complexity implicitly maximizes the thermodynamic efficiency of information processing in the brain.”
From Virtual reality and consciousness inference in dreaming (2014) · cites this paper as Sengupta et al., 2013
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Self-citation
- Authors
- Sengupta, B., Stemmler, M. B., & Friston, K. J.
- Affiliations
- Wellcome Centre for Human Neuroimaging (GB)
- Ludwig-Maximilians-Universität München (DE)
- Corresponding author
- Sengupta, Biswa
- Venue
- PLoS Computational Biology
- Publisher
- Public Library of Science (PLoS)
- Published
- 2013-07-25
- Volume
- 9
- Issue
- 7
- Pages
- e1003157
- ISSN
- 1553-734X (ISSN-L)
- 1553-7358
- PMC
- PMC3723496
- OpenAlex
- W2073820635
- Cited by
- 212
- References
- 18
- Citations by year
- 2026: 13 · 2025: 6 · 2024: 6 · 2023: 27 · 2022: 24 · 2021: 17 · 2020: 18 · 2019: 40 · 2018: 11 · 2017: 15 · 2016: 15 · 2015: 7 · 2014: 10 · 2013: 2
- FWCI
- 0.96
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- PLoS Computational Biology (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- NOT FOUND REPOSITORY (Indian Institute of Science Bangalore) (acceptedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- UCL Discovery (University College London) (submittedVersion)
- Open access LMU (Ludwid Maxmilian's Universitat Munchen) (submittedVersion)
- Funders
- Wellcome Trust (091593, 088130)
- Department of Biotechnology, Ministry of Science and Technology, India
- Boehringer Ingelheim Fonds
- Bundesministerium für Bildung und Forschung
- European Social Fund
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Life Sciences › Neuroscience › Cognitive Neuroscience › Embodied and Extended Cognition
- Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Advanced Thermodynamics and Statistical Mechanics
- Keywords
- metabolic efficiency, Helmholtz free energy, adaptive behavior, synaptic transmission, action potential, neural computation
- MeSH terms
- Action Potentials, Humans, Nervous System Physiological Phenomena, Thermodynamics, Signal Transduction
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