Perception and self-organized instability
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- dc.contributor.author Friston, Karlca
- dc.contributor.author Breakspear, Michaelca
- dc.contributor.author Deco, Gustavoca
- dc.date.accessioned 2016-02-10T17:27:27Z
- dc.date.available 2016-02-10T17:27:27Z
- dc.date.issued 2012
- dc.description.abstract This paper considers state-dependent dynamics that mediate perception in the brain. In particular, it considers the formal basis of self-organized instabilities that enable perceptual transitions during Bayes-optimal perception. The basic phenomena we consider are perceptual transitions that lead to conscious ignition (Dehaene and Changeux, 2011) and how they depend on dynamical instabilities that underlie chaotic itinerancy (Breakspear, 2001; Tsuda, 2001) and self-organized criticality (Beggs and Plenz, 2003; Plenz and Thiagarajan, 2007; Shew et al., 2011). Our approach is based on a dynamical formulation of perception as approximate Bayesian inference, in terms of variational free energy minimization. This formulation suggests that perception has an inherent tendency to induce dynamical instabilities (critical slowing) that enable the brain to respond sensitively to sensory perturbations. We briefly review the dynamics of perception, in terms of generalized Bayesian filtering and free energy minimization, present a formal conjecture about self-organized instability and then test this conjecture, using neuronal (numerical) simulations of perceptual categorization.ca
- dc.format.mimetype application/pdfca
- dc.identifier.citation Friston K, Breakspear M, Deco G. Perception and self-organized instability. Front. Comput. Neurosci. 2012;44(6):1-19. DOI: 10.3389/fncom.2012.00044
- dc.identifier.doi http://dx.doi.org/10.3389/fncom.2012.00044
- dc.identifier.issn 1662-5153
- dc.identifier.uri http://hdl.handle.net/10230/25776
- dc.language.iso engca
- dc.publisher Frontiers Mediaca
- dc.relation.ispartof Frontiers in behavioral neuroscience 2012;44(6):1-19
- dc.rights © 2012 Friston, Breakspear and Deco. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.ca
- dc.rights.accessRights info:eu-repo/semantics/openAccessca
- dc.rights.uri http://creativecommons.org/licenses/by/3.0/ca
- dc.subject.keyword Free-energy
- dc.subject.keyword Self-organization
- dc.subject.keyword Critical slowing
- dc.subject.keyword Generalized synchronization
- dc.subject.keyword Bayesian inference
- dc.title Perception and self-organized instabilityca
- dc.type info:eu-repo/semantics/articleca
- dc.type.version info:eu-repo/semantics/publishedVersionca