Multi-stable perception balances stability and sensitivity

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• dc.contributor.author Pastukhov, Alexanderca
• dc.contributor.author García Rodríguez, Pedro Ernestoca
• dc.contributor.author Haenicke, Joachimca
• dc.contributor.author Guillamon i Grabolosa, Antonica
• dc.contributor.author Deco, Gustavoca
• dc.contributor.author Braun, Jochenca
• dc.date.accessioned 2016-02-10T17:56:08Z
• dc.date.available 2016-02-10T17:56:08Z
• dc.date.issued 2013
• dc.description Supplemental information http://www.frontiersin.org/Computational_Neuroscience/10.3389/fncom.2013.00017/abstract
• dc.description.abstract We report that multi-stable perception operates in a consistent, dynamical regime, balancing the conflicting goals of stability and sensitivity. When a multi-stable visual display is viewed continuously, its phenomenal appearance reverses spontaneously at irregular intervals. We characterized the perceptual dynamics of individual observers in terms of four statistical measures: the distribution of dominance times (mean and variance) and the novel, subtle dependence on prior history (correlation and time-constant). The dynamics of multi-stable perception is known to reflect several stabilizing and destabilizing factors. Phenomenologically, its main aspects are captured by a simplistic computational model with competition, adaptation, and noise. We identified small parameter volumes (3% of the possible volume) in which the model reproduced both dominance distribution and history-dependence of each observer. For 21 of 24 data sets, the identified volumes clustered tightly (15% of the possible volume), revealing a consistent “operating regime” of multi-stable perception. The “operating regime” turned out to be marginally stable or, equivalently, near the brink of an oscillatory instability. The chance probability of the observed clustering was <0.02. To understand the functional significance of this empirical “operating regime,” we compared it to the theoretical “sweet spot” of the model. We computed this “sweet spot” as the intersection of the parameter volumes in which the model produced stable perceptual outcomes and in which it was sensitive to input modulations. Remarkably, the empirical “operating regime” proved to be largely coextensive with the theoretical “sweet spot.” This demonstrated that perceptual dynamics was not merely consistent but also functionally optimized (in that it balances stability with sensitivity). Our results imply that multi-stable perception is not a laboratory curiosity, but reflects a functional optimization of perceptual dynamics for visual inference.ca
• dc.description.sponsorship Alexander Pastukhov, Joachim Haenicke, and Jochen Braun: BMBF Bernstein Network, EU FP7-269459. Gustavo Deco: BFU2007-61710, Consolider Ingenio 2010, FP7 Brainsync, ITN Codde. Antoni Guillamon: MICINN/FEDER MTM2009-06973 and CUR-DIUE 2009SGR-859. Pedro E. García-Rodríguez: BFU2007-61710.
• dc.format.mimetype application/pdfca
• dc.identifier.citation Pastukhov A, García-Rodríguez PE, Haenicke J, Guillamon A, Deco G, Braun J. Multi-stable perception balances stability and sensitivity. Front. Comput. Neurosci. 2013;17(7):1-18. DOI: 10.3389/fncom.2013.00017
• dc.identifier.doi http://dx.doi.org/10.3389/fncom.2013.00017
• dc.identifier.issn 1662-5153
• dc.identifier.uri http://hdl.handle.net/10230/25777
• dc.language.iso engca
• dc.publisher Frontiers Mediaca
• dc.relation.ispartof Frontiers in behavioral neuroscience 2013;17(7):1-18
• dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/269459
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/MTM2009-06973
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/BFU2007-61710
• dc.rights © 2013 Pastukhov, García-Rodríguez, Haenicke, Guillamon, Deco and Braun. 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 etcca
• dc.rights.accessRights info:eu-repo/semantics/openAccessca
• dc.rights.uri http://creativecommons.org/licenses/by/3.0/ca
• dc.subject.keyword Multi-stability
• dc.subject.keyword Binocular rivalry
• dc.subject.keyword Adaptation
• dc.subject.keyword Model
• dc.subject.keyword Exploitation-exploration dilemma
• dc.title Multi-stable perception balances stability and sensitivityca
• dc.type info:eu-repo/semantics/articleca
• dc.type.version info:eu-repo/semantics/publishedVersionca