Memory and Markov Blankets DOI Creative Commons
Thomas Parr, Lancelot Da Costa, Conor Heins

et al.

Entropy, Journal Year: 2021, Volume and Issue: 23(9), P. 1105 - 1105

Published: Aug. 25, 2021

In theoretical biology, we are often interested in random dynamical systems-like the brain-that appear to model their environments. This can be formalized by appealing existence of a (possibly non-equilibrium) steady state, whose density preserves conditional independence between biological entity and its surroundings. From this perspective, conditioning set, or Markov blanket, induces form vicarious synchrony creature world-as if one were modelling other. However, results an apparent paradox. If all dependencies system surroundings depend upon how do account for mnemonic capacity living systems? It might that any shared dependence past blanket states violates condition, as variables on either side now share information not available from current state. paper aims resolve paradox, demonstrate does preclude memory. Our argument rests drawing distinction implied state density, dynamics conditioned configuration at previous time. The interesting question then becomes: What determines length time required stochastic 'forget' initial conditions? We explore example system, possesses through simple numerical analyses. conclude with discussion relevance memory cognitive systems like us.

Language: Английский

On Bayesian mechanics: a physics of and by beliefs DOI Creative Commons
Maxwell J. D. Ramstead, Dalton A R Sakthivadivel, Conor Heins

et al.

Interface Focus, Journal Year: 2023, Volume and Issue: 13(3)

Published: April 14, 2023

The aim of this paper is to introduce a field study that has emerged over the last decade, called Bayesian mechanics. mechanics probabilistic mechanics, comprising tools enable us model systems endowed with particular partition (i.e. into particles), where internal states (or trajectories states) system encode parameters beliefs about external their trajectories). These allow write down mechanical theories for look as if they are estimating posterior probability distributions causes sensory states. This provides formal language modelling constraints, forces, potentials and other quantities determining dynamics such systems, especially entail on space statistical manifold). Here, we will review state art in literature free energy principle, distinguishing between three ways which been applied path-tracking, mode-tracking mode-matching). We go examine duality principle constrained maximum entropy both lie at heart discuss its implications.

Language: Английский

Citations

88
The Emperor's New Markov Blankets DOI
Jelle Bruineberg, Krzysztof Dołęga, Joe Dewhurst

et al.

Behavioral and Brain Sciences, Journal Year: 2021, Volume and Issue: 45

Published: Oct. 22, 2021

The free energy principle, an influential framework in computational neuroscience and theoretical neurobiology, starts from the assumption that living systems ensure adaptive exchanges with their environment by minimizing objective function of variational energy. Following this premise, it claims to deliver a promising integration life sciences. In recent work, Markov blankets, one central constructs have been applied resolve debates philosophy (such as demarcating boundaries mind). aim paper is twofold. First, we trace development blankets starting standard application Bayesian networks, via inference, use literature on active inference. We then identify persistent confusion between formal epistemic tool for novel metaphysical demarcate physical boundary agent its environment. Consequently, propose distinguish "Pearl blankets" refer original "Friston new construct. Second, distinction critically assess resting philosophical problems. suggest would do well differentiating two different research programmes: "inference model" within model." Only latter capable doing work but requires additional premises cannot be justified appeal success mathematical alone.

Language: Английский

Citations

102
The Markov blanket trick: On the scope of the free energy principle and active inference DOI
Vicente Raja,

Dinesh Valluri,

Edward Baggs

et al.

Physics of Life Reviews, Journal Year: 2021, Volume and Issue: 39, P. 49 - 72

Published: Sept. 14, 2021

Language: Английский

Citations

68
From Generative Models to Generative Passages: A Computational Approach to (Neuro) Phenomenology DOI Creative Commons
Maxwell J. D. Ramstead, Anil K. Seth, Casper Hesp

et al.

Review of Philosophy and Psychology, Journal Year: 2022, Volume and Issue: 13(4), P. 829 - 857

Published: March 18, 2022

This paper presents a version of neurophenomenology based on generative modelling techniques developed in computational neuroscience and biology. Our approach can be described as

Language: Английский

Citations

51
Principles Behind Semantic Relation between Common Abbreviations and their Expansions on Instagram DOI

Munirah Hasjim,

Burhanuddin Arafah,

Andi Kaharuddin

et al.

International Journal of Criminology and Sociology, Journal Year: 2022, Volume and Issue: 9, P. 2270 - 2276

Published: April 5, 2022

The phenomenon of abbreviation used on Instagram is an interesting thing since the users modify form expansion words making deviation from original meaning. principle meaning relation between abbreviations and their expansions to make a change purposes users. This research was aimed describe in Instagram. An exploitation method by technique screenshots recording data. results indicate that consists three forms namely inclusion, contact, complementary. this can be very effective understanding as well how use abbreviations, especially Novelty study investigating

Language: Английский

Citations

43
Osteopathic Care as (En)active Inference: A Theoretical Framework for Developing an Integrative Hypothesis in Osteopathy DOI Creative Commons
Jorge E. Esteves, Francesco Cerritelli, Joohan Kim

et al.

Frontiers in Psychology, Journal Year: 2022, Volume and Issue: 13

Published: Feb. 18, 2022

Osteopathy is a person-centred healthcare discipline that emphasizes the body’s structure-function interrelationship—and its self-regulatory mechanisms—to inform whole-person approach to health and wellbeing. This paper aims provide theoretical framework for developing an integrative hypothesis in osteopathy, which based on enactivist active inference accounts. We propose osteopathic care can be reconceptualised under (En)active as unifying framework. Active suggests action-perception cycles operate minimize uncertainty optimize individual’s internal model of lived world and, crucially, consequences their behaviour. argue offers evince mechanisms underlying dyadic triadic (e.g., paediatric care) exchanges outcomes. this underpin across lifespan, from preterm infants elderly those with persistent pain other physical symptoms. In situations chronicity, ecological niche, patient-practitioner dyad provides osteopath patient set affordances, i.e., possibilities action provided by environment, through shared intentionally, promote adaptations restoration productive agency. Through therapeutic relationship, they engage niche’s affordances—a structured affordances agents—osteopath actively construct sense-making narrative realise generative relation niche. general, touch plays critical role robust alliance, mental state alignment, biobehavioural synchrony between practitioner. However, particularly crucial fields neonatology paediatrics, where it becomes central regulating allostasis restoring homeostasis. standpoint, niche underwrites effectiveness care. Considerations implications model—to clinical practice research, both within- outside osteopathy—are critically discussed.

Language: Английский

Citations

40
Neurons as hierarchies of quantum reference frames DOI
Chris Fields,

James F. Glazebrook,

Michael Levin

et al.

Biosystems, Journal Year: 2022, Volume and Issue: 219, P. 104714 - 104714

Published: June 6, 2022

Language: Английский

Citations

39
How do inner screens enable imaginative experience? Applying the free-energy principle directly to the study of conscious experience DOI Creative Commons
Chris Fields, Mahault Albarracin, Karl Friston

et al.

Neuroscience of Consciousness, Journal Year: 2025, Volume and Issue: 2025(1)

Published: Jan. 1, 2025

Abstract This paper examines the constraints that free-energy principle (FEP) places on possible model of consciousness, particularly models attentional control and imaginative experiences, including episodic memory planning. We first rehearse classical quantum formulations FEP, focusing their application to multi-component systems, in which only some components interact directly with external environment. In particular, we discuss role internal boundaries have structure Markov blankets, hence function as information channels between components. then show how this formal supports experience, a focus (i) experience can employ spatio-temporal object-recognition reference frames employed ordinary, non-imaginative (ii) be internally generated but still surprising. conclude by discussing implementation, phenomenology, phylogeny implications large state trait variability humans.

Language: Английский

Citations

1
Markov blankets in the brain DOI Creative Commons
Inês Hipólito, Maxwell J. D. Ramstead, Laura Convertino

et al.

Neuroscience & Biobehavioral Reviews, Journal Year: 2021, Volume and Issue: 125, P. 88 - 97

Published: Feb. 17, 2021

Recent characterisations of self-organising systems depend upon the presence a 'Markov blanket': statistical boundary that mediates interactions between inside and outside system. We leverage this idea to provide an analysis partitions in neuronal systems. This is applicable brain architectures at multiple scales, enabling into single neurons, regions, brain-wide networks. treatment based canonical micro-circuitry used empirical studies effective connectivity, so as speak directly practical applications. The notion connectivity depends dynamic coupling functional units, whose form recapitulates Markov blanket each level analysis. nuance afforded by partitioning neural way highlights certain limitations 'modular' perspectives function only consider description.

Language: Английский

Citations

49
On the Importance of Being Flexible: Dynamic Brain Networks and Their Potential Functional Significances DOI Creative Commons
Adam Safron,

Victoria Klimaj,

Inês Hipólito

et al.

Frontiers in Systems Neuroscience, Journal Year: 2022, Volume and Issue: 15

Published: Jan. 21, 2022

In this theoretical review, we begin by discussing brains and minds from a dynamical systems perspective, then go on to describe methods for characterizing the flexibility of dynamic networks. We discuss how varying degrees kinds may be adaptive (or maladaptive) in different contexts, specifically focusing measures related either more disjoint or cohesive dynamics. While disjointed useful assessing neural entropy, potentially serve as proxy self-organized criticality fundamental property enabling behavior complex systems. Particular attention is given recent studies which have been used investigate neurological cognitive maturation, well breakdown conscious processing under levels anesthesia. further these findings might contextualized within Free Energy Principle with respect fundamentals brain organization biological functioning generally, potential methodological advances paradigm. Finally, relevance computational psychiatry, propose research program obtaining better understanding ways that networks relate forms psychological flexibility, single most important factor ensuring human flourishing.

Language: Английский

Citations

30