Search results for 'metastability' (try it on Scholar)

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  1. Andrew A. Fingelkurts & Alexander A. Fingelkurts (2004). Making Complexity Simpler: Multivariability and Metastability in the Brain. International Journal of Neuroscience 114 (7):843 - 862.score: 24.0
    This article provides a retrospective, current and prospective overview on developments in brain research and neuroscience. Both theoretical and empirical studies are considered, with emphasis in the concept of multivariability and metastability in the brain. In this new view on the human brain, the potential multivariability of the neuronal networks appears to be far from continuous in time, but confined by the dynamics of short-term local and global metastable brain states. The article closes by suggesting some of the implications (...)
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  2. Ulrich Kohlenbach & Pavol Safarik (2014). Fluctuations, Effective Learnability and Metastability in Analysis. Annals of Pure and Applied Logic 165 (1):266-304.score: 15.0
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  3. Claude Gandelman (1979). The Metastability of Signs/Metastability as a Sign. Semiotica 28 (1-2).score: 15.0
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  4. O. Penrose & Joel L. Lebowitz (1987). Towards a Rigorous Molecular Theory of Metastability. In E. W. Montroll & Joel Louis Lebowitz (eds.), Fluctuation Phenomena. Sole Distributors for the U.S.A. And Canada, Elsevier Science Pub. Co.. 7--293.score: 15.0
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  5. Jeremy Avigad & Henry Towsner, Metastability in the Furstenberg-Zimmer Tower.score: 15.0
    According to the Furstenberg-Zimmer structure theorem, every measure-preserving system has a maximal distal factor, and is weak mixing relative to that factor. Furstenberg and Katznelson used this structural analysis of measure-preserving systems to provide a perspicuous proof of Szemer\'edi's theorem. Beleznay and Foreman showed that, in general, the transfinite construction of the maximal distal factor of a separable measure-preserving system can extend arbitrarily far into the countable ordinals. Here we show that the Furstenberg-Katznelson proof does not require the full strength (...)
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  6. Tsili Doleve-Gandelman & Claude Gandelman (1989). The Metastability of Primitive Artefacts. Semiotica 75 (3-4):191-214.score: 15.0
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  7. Christopher T. Kello, Gregory G. Anderson, John G. Holden & Guy C. Van Orden (2008). The Pervasiveness of 1/F Scaling in Speech Reflects the Metastable Basis of Cognition. Cognitive Science 32 (7):1217-1231.score: 11.0
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  8. Andrew A. Fingelkurts & Alexander A. Fingelkurts (2001). Operational Architectonics of the Human Brain Biopotential Field: Toward Solving the Mind-Brain Problem. [REVIEW] Brain and Mind 2 (3):261-296.score: 7.0
    The understanding of the interrelationship between brain and mind remains far from clear. It is well established that the brain's capacity to integrate information from numerous sources forms the basis for cognitive abilities. However, the core unresolved question is how information about the "objective" physical entities of the external world can be integrated, and how unifiedand coherent mental states (or Gestalts) can be established in the internal entities of distributed neuronal systems. The present paper offers a unified methodological and conceptual (...)
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  9. Andrew A. Fingelkurts, Alexander A. Fingelkurts & Carlos F. H. Neves (2010). Emergentist Monism, Biological Realism, Operations and Brain-Mind Problem. Physics of Life Reviews 7 (2):264-268.score: 6.0
    We would like to thank all the commentators who responded to our target review paper for their thought-provoking ideas and for their initially positive characterization of our theorizing. Our position provoked a broad range of reactions, from enthusiastic support to some kind of opposition. Regardless of the type of the response, one common factor appears to be the plausibility of a presented attempt to apply insights from physics, biology (neuroscience), and phenomenology of mind to form a unified theoretical framework of (...)
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  10. A. I. Kirillov (1997). On the Theory of Metastable States. Foundations of Physics 27 (12):1701-1708.score: 6.0
    It is shown that the stationary states of stochastic systems are stable. Therefore one cannot use the stationary probability distributions for describing the stochastic systems in metastable states. It is shown that the nonstationary stochastic processes can have sample paths with stationary parts. It is proposed to consider these stationary parts as the metastable states.
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  11. Andrew A. Fingelkurts, Alexander A. Fingelkurts & Carlos F. H. Neves (2009). Phenomenological Architecture of a Mind and Operational Architectonics of the Brain: The Unified Metastable Continuum. In Robert Kozma & John Caulfield (eds.), Journal of New Mathematics and Natural Computing. Special Issue on Neurodynamic Correlates of Higher Cognition and Consciousness: Theoretical and Experimental Approaches - in Honor of Walter J Freeman's 80th Birthday. World Scientific. 221-244.score: 6.0
    In our contribution we will observe phenomenal architecture of a mind and operational architectonics of the brain and will show their intimate connectedness within a single integrated metastable continuum. The notion of operation of different complexity is the fundamental and central one in bridging the gap between brain and mind: it is precisely by means of this notion that it is possible to identify what at the same time belongs to the phenomenal conscious level and to the neurophysiological level of (...)
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  12. Giulio Benedetti, Giorgio Marchetti, Alexander A. Fingelkurts & Andrew A. Fingelkurts (2010). Mind Operational Semantics and Brain Operational Architectonics: A Putative Correspondence. Open Neuroimaging Journal 4:53-69.score: 6.0
    Despite allowing for the unprecedented visualization of brain functional activity, modern neurobio-logical techniques have not yet been able to provide satisfactory answers to important questions about the relationship between brain and mind. The aim of this paper is to show how two different but complementary approaches, Mind Operational Semantics (OS) and Brain Operational Architectonics (OA), can help bridge the gap between a specific kind of mental activity—the higher-order reflective thought or linguistic thought—and brain. The fundamental notion that allows the two (...)
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  13. Andrew A. Fingelkurts, Alexander A. Fingelkurts & Carlos F. H. Neves (2010). Natural World Physical, Brain Operational, and Mind Phenomenal Space-Time. Physics of Life Reviews 7 (2):195-249.score: 6.0
    Concepts of space and time are widely developed in physics. However, there is a considerable lack of biologically plausible theoretical frameworks that can demonstrate how space and time dimensions are implemented in the activity of the most complex life-system – the brain with a mind. Brain activity is organized both temporally and spatially, thus representing space-time in the brain. Critical analysis of recent research on the space-time organization of the brain’s activity pointed to the existence of so-called operational space-time in (...)
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  14. Andrew A. Fingelkurts & Alexander A. Fingelkurts (2006). Timing in Cognition and EEG Brain Dynamics: Discreteness Versus Continuity. Cognitive Processing 7 (3):135-162.score: 6.0
    This article provides an overview of recent developments in solving the timing problem (discreteness vs. continuity) in cognitive neuroscience. Both theoretical and empirical studies have been considered, with an emphasis on the framework of Operational Architectonics (OA) of brain functioning (Fingelkurts and Fingelkurts, 2001, 2005). This framework explores the temporal structure of information flow and interarea interactions within the network of functional neuronal populations by examining topographic sharp transition processes in the scalp EEG, on the millisecond scale. We conclude, based (...)
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  15. Andrew A. Fingelkurts & Alexander A. Fingelkurts (2013). Dissipative Many-Body Model and a Nested Operational Architectonics of the Brain. Physics of Life Reviews 10:103-105.score: 6.0
    This paper briefly review a current trend in neuroscience aiming to combine neurophysiological and physical concepts in order to understand the emergence of spatio-temporal patterns within brain activity by which brain constructs knowledge from multiple streams of information. The authors further suggest that the meanings, which subjectively are experienced as thoughts or perceptions can best be described objectively as created and carried by large fields of neural activity within the operational architectonics of brain functioning.
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  16. Andrew A. Fingelkurts, Alexander A. Fingelkurts & Carlos F. H. Neves (2012). “Machine” Consciousness and “Artificial” Thought: An Operational Architectonics Model Guided Approach. Brain Research 1428:80-92.score: 6.0
    Instead of using low-level neurophysiology mimicking and exploratory programming methods commonly used in the machine consciousness field, the hierarchical Operational Architectonics (OA) framework of brain and mind functioning proposes an alternative conceptual-theoretical framework as a new direction in the area of model-driven machine (robot) consciousness engineering. The unified brain-mind theoretical OA model explicitly captures (though in an informal way) the basic essence of brain functional architecture, which indeed constitutes a theory of consciousness. The OA describes the neurophysiological basis of the (...)
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  17. Andrew A. Fingelkurts, Alexander A. Fingelkurts, Sakari Kallio & Antti Revonsuo (2007). Cortex Functional Connectivity as a Neurophysiological Correlate of Hypnosis: An EEG Case Study. Neuropsychologia 45 (7):14521462.score: 6.0
    Cortex functional connectivity associated with hypnosis was investigated in a single highly hypnotizable subject in a normal baseline condition and under neutral hypnosis during two sessions separated by a year. After the hypnotic induction, but without further suggestions as compared to the baseline condition, all studied parameters of local and remote functional connectivity were significantly changed. The significant differences between hypnosis and the baseline condition were observable (to different extent) in five studied independent frequency bands (delta, theta, alpha, beta, and (...)
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  18. Andrew A. Fingelkurts & Alexander A. Fingelkurts (2011). Persistent Operational Synchrony Within Brain Default-Mode Network and Self-Processing Operations in Healthy Subjects. Brain and Cognition 75 (2):79-90.score: 6.0
    Based on the theoretical analysis of self-consciousness concepts, we hypothesized that the spatio-temporal pattern of functional connectivity within the default-mode network (DMN) should persist unchanged across a variety of different cognitive tasks or acts, thus being task-unrelated. This supposition is in contrast with current understanding that DMN activated when the subjects are resting and deactivated during any attention-demanding cognitive tasks. To test our proposal, we used, in retrospect, the results from our two early studies ([Fingelkurts, 1998] and [Fingelkurts et al., (...)
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  19. Andrew A. Fingelkurts, Alexander A. Fingelkurts, Sergio Bagnato, Cristina Boccagni & Giuseppe Galardi (2012). Toward Operational Architectonics of Consciousness: Basic Evidence From Patients with Severe Cerebral Injuries. Cognitive Processing 13 (2):111-131.score: 6.0
    Although several studies propose that the integrity of neuronal assemblies may underlie a phenomenon referred to as awareness, none of the known studies have explicitly investigated dynamics and functional interactions among neuronal assemblies as a function of consciousness expression. In order to address this question EEG operational architectonics analysis (Fingelkurts and Fingelkurts, 2001, 2008) was conducted in patients in minimally conscious (MCS) and vegetative states (VS) to study the dynamics of neuronal assemblies and operational synchrony among them as a function (...)
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  20. Andrew A. Fingelkurts, Alexander A. Fingelkurts & Carlos F. H. Neves (2009). Brain and Mind Operational Architectonics and Man-Made “Machine” Consciousness. Cognitive Processing 10 (2):105-111.score: 6.0
    To build a true conscious robot requires that a robot’s “brain” be capable of supporting the phenomenal consciousness as human’s brain enjoys. Operational Architectonics framework through exploration of the temporal structure of information flow and inter-area interactions within the network of functional neuronal populations [by examining topographic sharp transition processes in the scalp electroencephalogram (EEG) on the millisecond scale] reveals and describes the EEG architecture which is analogous to the architecture of the phenomenal world. This suggests that the task of (...)
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  21. Sarah Margairaz (2013). Entre apeiron présocratique et métastabilité thermodynamique : l'idée de préindividuel chez Gilbert Simondon. Methodos 13.score: 6.0
    Si la notion de « préindividuel » fait figure de nouveauté lexicale par rapport au vocabulaire de la métaphysique traditionnelle, et se présente ainsi comme une idée « neuve » à partir de laquelle Gilbert Simondon prétend rompre avec toute une tradition de pensée de l’individuation, celui-ci se réfère pourtant à plusieurs reprises pour en expliciter le sens aux notions d’apeiron et de phusis présocratiques. Cependant, c’est en s’appuyant également sur la notion de « métastabilité », qu’il emprunte à la (...)
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  22. Ehud Lamm (2011). The Metastable Genome: A Lamarckian Organ in a Darwinian World? In Eva Jablonka & Snait Gissis (eds.), Transformations of Lamarckism: from subtle fluids to molecular biology. MIT Press.score: 5.0
    This article is arranged around two general claims and a thought experiment. I begin by suggesting that the genome should be studied as a developmental system, and that genes supervene on genomes (rather than the other way around). I move on to present a thought experiment that illustrates the implications a dynamic view of the genome has for central concepts in biology, in particular the information content of the genome, and the notion of responses to stress.
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  23. Nebojsa Kujundzic (2001). Virtual Reality and Metastable Interactivity. Ends and Means 5 (1):25.score: 5.0
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  24. Claude Gandelman (1982). Philosophy as a Sign-Producing Activity: The Metastable Gestalt of Intentionality. Semiotica 39 (1-2).score: 5.0
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  25. O. Oullier & J. Kelso (2006). Neuroeconomics and the Metastable Brain. Trends in Cognitive Sciences 10 (8):353-354.score: 5.0
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  26. Andrew A. Fingelkurts, Alexander A. Fingelkurts & Carlos F. H. Neves (2013). Consciousness as a Phenomenon in the Operational Architectonics of Brain Organization: Criticality and Self-Organization Considerations. Chaos, Solitons and Fractals 55:13-31.score: 3.0
    In this paper we aim to show that phenomenal consciousness is realized by a particular level of brain operational organization and that understanding human consciousness requires a description of the laws of the immediately underlying neural collective phenomena, the nested hierarchy of electromagnetic fields of brain activity – operational architectonics. We argue that the subjective mental reality and the objective neurobiological reality, although seemingly worlds apart, are intimately connected along a unified metastable continuum and are both guided by the universal (...)
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  27. I. C. Baianu (2006). Robert Rosen's Work and Complex Systems Biology. Axiomathes 16 (1-2):25-34.score: 3.0
    Complex Systems Biology approaches are here considered from the viewpoint of Robert Rosen’s (M,R)-systems, Relational Biology and Quantum theory, as well as from the standpoint of computer modeling. Realizability and Entailment of (M,R)-systems are two key aspects that relate the abstract, mathematical world of organizational structure introduced by Rosen to the various physicochemical structures of complex biological systems. Their importance for understanding biological function and life itself, as well as for designing new strategies for treating diseases such as cancers, is (...)
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  28. Joseph E. Earley (2012). A Neglected Aspect of the Puzzle of Chemical Structure: How History Helps. [REVIEW] Foundations of Chemistry 14 (3):235-243.score: 3.0
    Intra-molecular connectivity (that is, chemical structure) does not emerge from computations based on fundamental quantum-mechanical principles. In order to compute molecular electronic energies (of C 3 H 4 hydrocarbons, for instance) quantum chemists must insert intra-molecular connectivity “by hand.” Some take this as an indication that chemistry cannot be reduced to physics: others consider it as evidence that quantum chemistry needs new logical foundations. Such discussions are generally synchronic rather than diachronic —that is, they neglect ‘historical’ aspects. However, systems of (...)
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  29. M. Barone (2004). The Vacuum as Ether in the Last Century. Foundations of Physics 34 (12):1973-1982.score: 1.0
    In this paper we review the evolution of the concept of “vacuum” according to different theories formulated in the last century, like Quantum Mechanics, Quantum Electrodynamics, Quantum Chromodynamics in Particle Physics and Cosmology. In all these theories a metastable vacuum state is considered which transforms from one state to another according to the energy taken into consideration. It is a “fluid” made up by matter and radiation present in the whole Universe, which may be identified with a modern definition of (...)
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  30. Andrew A. Fingelkurts & Alexander A. Fingelkurts (2014). Present Moment, Past, and Future: Mental Kaleidoscope. Frontiers in Psychology 5:395.score: 1.0
    In our Opinion Article we, using the William James’ metaphor of a kaleidoscope, will analyze subjective experiences of the “present moment”, past and future, and will suggest the neurophysiological mechanism responsible for these experiences within the operational architectonics of human brain field. The brain operational architectonics is a framework that shows how the spatial and temporal hierarchy of nested metastable states of neuronal assemblies can serve in real time as a basis for the mental structure and dynamics as is found (...)
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  31. Alex Levine (2011). Epistemic Objects as Interactive Loci. Axiomathes 21 (1):57-66.score: 1.0
    Contemporary process metaphysics has achieved a number of important results, most significantly in accounting for emergence, a problem on which substance metaphysics has foundered since Plato. It also faces trenchant problems of its own, among them the related problems of boundaries and individuation. Historically, the quest for ontology may thus have been largely responsible for the persistence of substance metaphysics. But as Plato was well aware, an ontology of substantial things raises serious, perhaps insurmountable problems for any account of our (...)
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  32. Richard Sternberg (1996). The Role of Constrained Self-Organization in Genome Structural Evolution. Acta Biotheoretica 44 (2).score: 1.0
    A hypothesis of genome structural evolution is explored. Rapid and cohesive alterations in genome organization are viewed as resulting from the dynamic and constrained interactions of chromosomal subsystem components. A combination of macromolecular boundary conditions and DNA element involvement in far-from-equilibrium reactions is proposed to increase the complexity of genomic subsystems via the channelling of genome turnover; interactions between subsystems create higher-order subsystems expanding the phase space for further genetic evolution. The operation of generic constraints on structuration in genome evolution (...)
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