A breathtaking look at the new science that can track consciousness deep in the brain How does our brain generate a conscious thought? And why does so much of our knowledge remain unconscious? Thanks to clever psychological and brain-imaging experiments, scientists are closer to cracking this mystery than ever before. In this lively book, Stanislas Dehaene describes the pioneering work his lab and the labs of other cognitive neuroscientists worldwide have accomplished in defining, testing, and explaining the brain events (...) behind a conscious state. We can now pin down the neurons that fire when a person reports becoming aware of a piece of information and understand the crucial role unconscious computations play in how we make decisions. The emerging theory enables a test of consciousness in animals, babies, and those with severe brain injuries. A joyous exploration of the mind and its thrilling complexities, Consciousness and the Brain will excite anyone interested in cutting-edge science and technology and the vast philosophical, personal, and ethical implications of finally quantifying consciousness. (shrink)

Amidst the many brain events evoked by a visual stimulus, which are specifically associated with conscious perception, and which merely reflect non-conscious processing? Several recent neuroimaging studies have contrasted conscious and non-conscious visual processing, but their results appear inconsistent. Some support a correlation of conscious perception with early occipital events, others with late parieto-frontal activity. Here we attempt to make sense of those dissenting results. On the basis of a minimal neuro-computational model, the global neuronal workspace hypothesis, we propose a (...) taxonomy which distinguishes between vigilance and access to conscious report, as well as between subliminal, preconscious and conscious processing. We suggest that these distinctions map onto different neural mechanisms, and that conscious perception is systematically associated with a sudden surge of parieto-frontal activity causing top-down amplification. (shrink)

Sean Irving’s book Hayek’s Market Republicanism: The Limits of Liberty shows that the commonly accepted reading of Hayek as a liberal thinker is mistaken, and that his political writings are best understood as belonging to the broader tradition of republicanism. The distinction is important for understanding many aspects of Hayek’s thought, and especially his rejection of social justice and majoritarian democracy. In that sense, one of the book’s more general merits is its implicit contribution to ongoing debates between republican ‘freedom (...) as non-domination’ and liberal ‘freedom as non-interference’. Irving focuses on what he sees as a contradiction between Hayek’s chief concerns about the state as the main source of domination and his disregard for private forms of power, and especially within the capitalist firm. I argue, however, that the example of Hayek should lead us to consider a more prosaic conclusion: freedom as non-domination is a concept less useful for criticising the free market than Irving and left-leaning Republicans seem to assume. (shrink)

This paper clarifies the usage of Albert Hirschman’s categories of market behaviour as of exit and voice in debates about workplace democracy by taking seriously his critique of the neoclassical analysis of competition. Pro-market liberals are generally hostile to the idea of workplace democracy and tend to favour top-down hierarchies as a way of organising labour. This hostility is generally inspired by the neoclassical analysis of exploitation and efficiency, which leads them to defend distributions achieved through exit-based competitive equilibria. Following (...) Hirschman, I propose to consider a hypothetical alternative: a democratic equilibrium, reached through the use of voice. I show that it would present the same appealing characteristics than its competitive counterpart while also accounting for the non-ideal conditions in which markets operate. Support for free markets should entail support for workplace democracy minimally understood as a strengthening of voice. (shrink)

This introductory chapter attempts to clarify the philosophical, empirical, and theoretical bases on which a cognitive neuroscience approach to consciousness can be founded. We isolate three major empirical observations that any theory of consciousness should incorporate, namely (1) a considerable amount of processing is possible without consciousness, (2) attention is a prerequisite of consciousness, and (3) consciousness is required for some specific cognitive tasks, including those that require durable information maintenance, novel combinations of operations, or the spontaneous generation of intentional (...) behavior. We then propose a theoretical framework that synthesizes those facts: the hypothesis of a global neuronal workspace. This framework postulates that, at any given time, many modular cerebral networks are active in parallel and process information in an unconscious manner. An information becomes conscious, however, if the neural population that represents it is mobilized by top-down attentional amplification into a brain-scale state of coherent activity that involves many neurons distributed throughout the brain. The long-distance connectivity of these `workspace neurons' can, when they are active for a minimal duration, make the information available to a variety of processes including perceptual categorization, long-term memorization, evaluation, and intentional action. We postulate that this global availability of information through the workspace is what we subjectively experience as a conscious state. A complete theory of consciousness should explain why some cognitive and cerebral representations can be permanently or temporarily inaccessible to consciousness, what is the range of possible conscious contents, how they map onto specific cerebral circuits, and whether a generic neuronal mechanism underlies all of them. We confront the workspace model with those issues and identify novel experimental predictions. Neurophysiological, anatomical, and brain-imaging data strongly argue for a major role of prefrontal cortex, anterior cingulate, and the areas that connect to them, in creating the postulated brain-scale workspace. (shrink)

Does geometry constitues a core set of intuitions present in all humans, regarless of their language or schooling ? We used two non verbal tests to probe the conceptual primitives of geometry in the Munduruku, an isolated Amazonian indigene group. Our results provide evidence for geometrical intuitions in the absence of schooling, experience with graphic symbols or maps, or a rich language of geometrical terms.

A uniquely integrative work, this volume provides a much needed compilation of primary source material to researchers from basic neuroscience, psychology, developmental science, neuroimaging, neuropsychology and theoretical biology. * The ...

Le monde moderne de par son mode de vie a reçu l'empreinte de l'hygiène et de la médecine ainsi que des principes résultant des découvertes de l'industrie pharmaceutique chimique, de Pasteur, de Flemming, etc. Ces produits sont certes d'un apport utile pour garantir le confort anatomique et physiologique de l'organisme humain, mais il faut raisonnablement les considérer aujourd'hui comme un triomphe d'une humanité à l'incessante poursuite d'une santé durable. La physiologie et l'anatomie n'étant pas les seules composantes de l'être humain, (...) la santé ne saurait en aucun cas être considérée, prise en charge ou ajustée, comme une simple machine industrielle ou être comparée à un plan d'ajustement structurel ou de relance économique pour assurer la croissance et la survie d'un peuple. C'est la colonne vertébrale de la thèse de l'auteur Gervais Mvogo dans son ouvrage Limites et échecs de la médecine occidentale. Théorie de la guérison. Le sujet de réflexion fascine dans son ancrage de parallélisme des sources ontologiques de la nature humaine, s'appuyant ainsi sur Dieu. Le titre ouvre le débat sur la démarche, la pratique, l'émergence et la radiance des firmes et des intelligences artificielles de l'industrie pharmaceutique, véritable politique de la médecine occidentale. (shrink)

The most influential justification of individual property rights is the Propertarian Argument. It is the idea that the institution of private property renders everyone better off, and crucially, even the worst-off members of society. A recent critique of the Argument is that it relies on an anthropologically false hypothesis – the idea, following Thomas Hobbes, that life in the state of nature is one of widespread scarcity and violence to which property rights are a solution. The present article seeks to (...) reformulate this Anthropological Objection in a way that more directly addresses Hobbes’ original argument. It then shows that private property is justified to the extent that it allows anyone to reclaim their free time. (shrink)

1 INSERM-CEA Unit 562, Cognitive Neuroimaging, Service Hospitalier Fre´de´ric Joliot, Orsay, France, 2 CNRS URA2182 Re´cepteurs and Cognition, Institut Pasteur, Paris, France.

There are two opposing views concerning intuitive cases of wage exploitation. The first denies that they are cases of exploitation at all. It is based on the nonworseness claim: there is nothing wrong with a discretionary mutually beneficial employment relationship. The second is the reasonable view: some employment relationships can be exploitative even if employers have no duty towards their employees. This article argues that the reasonable view does not completely defeat defences of wage exploitation, because these do not rely (...) solely on the nonworseness claim. They also rely on the idea, popularised by Alan Wertheimer, that exploitation is a form of disequilibrium price occurring in defective markets. The article then proceeds to criticise Wertheimer’s account through neoclassical, new institutional, and Austrian economics. It concludes that considerations for economic efficiency are irrelevant to assessing intuitions regarding exploitation. (shrink)

‘Number sense’ is a short‐hand for our ability to quickly understand, approximate, and manipulate numerical quantities. My hypothesis is that number sense rests on cerebral circuits that have evolved specifically for the purpose of representing basic arithmetic knowledge. Four lines of evidence suggesting that number sense constitutes a domain‐specific, biologically‐determined ability are reviewed: the presence of evolutionary precursors of arithmetic in animals; the early emergence of arithmetic competence in infants independently of other abilities, including language; the existence of a homology (...) between the animal, infant, and human adult abilities for number processing; and the existence of a dedicated cerebral substrate. In adults of all cultures, lesions to the inferior parietal region can specifically impair number sense while leaving the knowledge of other cognitive domains intact. Furthermore, this region is demonstrably activated during number processing. I postulate that higher–level cultural devel‐opments in arithmetic emerge through the establishment of linkages between this core analogical representation and other verbal and visual representations of number notations. The neural and cognitive organization of those representations can explain why some mathematical concepts are intuitive, while others are so difficult to grasp. Thus, the ultimate foundations of mathematics rests on core representations that have been internalized in our brains through evolution. (shrink)

This book investigates the philosophical, empirical, and theoretical bases on which a cognitive neuroscience of consciousness can be founded.

There are two opposing views concerning intuitive cases of wage exploitation. The first denies that they are cases of exploitation at all. It is based on the nonworseness claim: there is nothing wrong with a discretionary mutually beneficial employment relationship. The second is the reasonable view: some employment relationships can be exploitative even if employers have no duty towards their employees. This article argues that the reasonable view does not completely defeat defences of wage exploitation, because these do not rely (...) solely on the nonworseness claim. They also rely on the idea, popularised by Alan Wertheimer, that exploitation is a form of disequilibrium price occurring in defective markets. The article then proceeds to criticise Wertheimer’s account through neoclassical, new institutional, and Austrian economics. It concludes that considerations for economic efficiency are irrelevant to assessing intuitions regarding exploitation. (shrink)

This conceptual paper contributes to the critique of a body of literature that will be named ‘deliberative corporate governance’ by defending non-deliberative acts performed by stakeholders. It first argues that this literature introduces to the corporation a decision-making process where it does not belong, given the corporation's economic role. This leads to an ‘efficiency constraint’ on any attempt to justify deliberation – deliberative governance theorists must show that it is the most efficient and cost-effective way to address the issues that (...) concern them. A real case example where deliberation would have been counter-productive in that regard will show that this is not the case. Building on this example, the paper uses the theory of democratic agonism to argue that non-deliberative acts should be part of governance. A sketch of managerial duties vis-à-vis such acts is attempted as well. The paper does not seek to reject deliberative corporate governance entirely, but rather to defend the importance of non-deliberative practices in addressing its theoretical concern. It makes a conceptual contribution to corporate governance theory, from which it draws practical implications for stakeholders-oriented management. (shrink)

Work occupies a central place in most people’s lives, yet a secondary one in most of political philosophy. This article attempts to show the negative theoretical consequences of this neglect by taking the example of the concept of constituent power as it appears in the writings of Emmanuel Joseph Sièyes and Karl Marx. Both authors conceived it as made up of the working classes. This, however, makes them both run into the same paradox: how to politically represent a class that (...) is characterised by a non-political activity – work? I argue that neither of them gives a satisfactory response since both rely on an implausible account of objective class interests based on fragile grounds. I conclude by showing that the political representation of workers is a theoretical and practical problem that the concept of constituent power is unable to resolve. (shrink)

‘Number sense’ is a short‐hand for our ability to quickly understand, approximate, and manipulate numerical quantities. My hypothesis is that number sense rests on cerebral circuits that have evolved specifically for the purpose of representing basic arithmetic knowledge. Four lines of evidence suggesting that number sense constitutes a domain‐specific, biologically‐determined ability are reviewed: the presence of evolutionary precursors of arithmetic in animals; the early emergence of arithmetic competence in infants independently of other abilities, including language; the existence of a homology (...) between the animal, infant, and human adult abilities for number processing; and the existence of a dedicated cerebral substrate. In adults of all cultures, lesions to the inferior parietal region can specifically impair number sense while leaving the knowledge of other cognitive domains intact. Furthermore, this region is demonstrably activated during number processing. I postulate that higher–level cultural devel‐opments in arithmetic emerge through the establishment of linkages between this core analogical representation (the ‘number line’ ) and other verbal and visual representations of number notations. The neural and cognitive organization of those representations can explain why some mathematical concepts are intuitive, while others are so difficult to grasp. Thus, the ultimate foundations of mathematics rests on core representations that have been internalized in our brains through evolution. (shrink)

NATURALIZATION OF THE ABSOLUTE. The application of evolution’s explanatory mechanism to the study of religion The question which has troubled scholars for many decades (or even centuries) is the origin and function of religion. In this article, the author tries to sketch an outline of a new and promising paradigm in the study of religion, i.e. the evolutionary theories of religion. It is widely held belief that this enterprise should further provide an explanatory framework for an enormous amount of data (...) about human religiosity. Such an aim requires giving an overview of the three fundamental Darwinian theories which pertain to this extremely multifaceted phenomenon. The sequence in the overview is like this: (a) a historical and conceptual background, (b) a sociobiological account, (c) a cognitive account, (d) a memetic account. The paper also comprises a short presentation of so-called co-evolutionary perspective, which integrates the above-mentioned outlooks, and some shortcomings of the whole evolutionary program of the study of religion. (shrink)

The aim of this study is to evaluate the psychometric properties of the Polish version of the Dispositional Flow Scale-2 and Flow State Scale-2, for use with Polish adults and young adults. Currently, there are no tools that would allow us to study flow among Polish speakers. At the same time, due to the great interest in flow and its potential importance for effectiveness, cooperation, and learning, it is worth ensuring that reliable validated measurement questionnaires are available for people studying (...) the Polish population. Study participants completed 856 questionnaires, of which 496 individuals participated in the DFS-2 study and 360 individuals participated in the FSS-2 study. The maximum likelihood estimator was selected for the CFA analysis. Model fit was assessed using: χ2, comparative fit index, Tucker-Lewis index, and standardized root mean square of residuals, and root mean square of approximation error. For both questionnaires, formative first-level models with nine factors and second-level models with nine factors loaded on a higher-order flow factor were compared using the Satorra-Bentler Scaled difference χ2 test. The ω coefficient was used to estimate the reliability of the FFS-2 and DFS-2 models tested in the CFA method. Confirmatory factor analysis of both DFS-2 structural models showed satisfactory model fit. Most of the fit indices for the hierarchical 2nd order FSS-2 model presented satisfactory values, except for SRMR. Both DFS-2 and FSS-2 factors tested in the analysis showed good reliability. Our findings confirmed the reliability and validity of the Polish versions of DFS-2 and FSS-2 scales. The scales are reliable when applied to Polish adults and young adults. (shrink)

Human adults are thought to possess two dissociable systems to represent numbers: an approximate quantity system akin to a mental number line, and a verbal system capable of representing numbers exactly. Here, we study the interface between these two systems using an estimation task. Observers were asked to estimate the approximate numerosity of dot arrays. We show that, in the absence of calibration, estimates are largely inaccurate: responses increase monotonically with numerosity, but underestimate the actual numerosity. However, insertion of a (...) few inducer trials, in which participants are explicitly (and sometimes misleadingly) told that a given display contains 30 dots, is sufficient to calibrate their estimates on the whole range of stimuli. Based on these empirical results, we develop a model of the mapping between the numerical symbols and the representations of numerosity on the number line. (shrink)

Reading in the Brain (Les neurones de la lecture, 2007) examined the origins of human reading abilities in the light of contemporary cognitive neuroscience. It argued that reading acquisition, in all cultures, recycles preexisting cortical circuits dedicated to invariant visual recognition, and that the organization of these circuits imposes strong constraints on the invention and cultural evolution of writing systems. In this article, seven years later, I briefly review new experimental evidence, particularly from brain imaging studies of illiterate adults, which (...) indicates that reading acquisition invades culturally universal cortical circuits and competes with their prior function, including mirror-invariant visual recognition and face processing. In response to my critics, I emphasize how brain plasticity and brain constraints can be reconciled within the Bayesian perspective on learning. I also discuss the importance of a newly discovered gesture system in reading and writing. Finally, I argue that there is consistent evidence for deep cross-cultural universals in writing systems, as well as for the multiple subtypes of dyslexia that are expected given the broad set of areas recruited by the reading task. (shrink)