Bruno Latour was once asked : "Do you believe in reality?" This text is an attempt to answer this question.

The history of philosophy risks a self-opacity whereby we overestimate or underestimate our proximity to prior modes of thinking. This risk is relevant to assessing Hegel’s appropriation by McDowell and Priest. McDowell enlists Hegel for a quietist answer to the problem with assuming that concepts and reality belong to different orders, viz., how concepts are answerable to the world. If we accept Hegel’s absolute idealist view that the conceptual is boundless, this problem allegedly dissolves. Priest enlists Hegel for a dialetheist (...) answer to the problem with assuming that truth and falsity are mutually exclusive, viz., how certain sentences are both true and false. If we accept Hegel’s dialectical view that certain contradictions are necessary, this problem allegedly dissolves. For both McDowell and Priest, we find a true friend in Hegel. I argue that McDowell’s and Priest’s appropriations of Hegel overestimate Hegel’s affinity with quietism and dialetheism. McDowell reads Hegel as a quietist who silences metaphysical claims and the skeptical questions they raise against commonsense, but neglects Hegel’s adaptation of ancient skepticism against commonsense. Priest reads Hegel as a dialetheist who subordinates formal logic to dialectical logic by affirming the truth of certain contradictions, but neglects Hegel’s commitment to resolving contradictions for the sake of truth qua whole. I diagnose their misreadings in terms of what Hegel regards as the three moments of logic and argue that while McDowell jumps to its third moment, Priest stalls at its second moment. According to Hegel’s Encyclopedia Logic, logic has three “moments”: the abstractive moment of the understanding, which “stops short” at fixed categories; the negative moment of dialectic, which discovers the “genuine nature” of the categories, viz., that each “passes over, of itself, into its opposite”; and the positive moment of speculation, which grasps the “unity” of categories through the “dissolution” of their inner opposition. Hegel warns that if these moments are “kept separate from each other […] they are not considered in their truth”. I suggest that quietist and dialetheist readings of Hegel fail to consider truthfully the unified moments of his logic. In his quietist critique of metaphysics, McDowell enlists Hegel to dissolve the problem with assuming the duality of concept and reality. But McDowell helps himself directly to the third moment of logic, where the unity of the categories, and hence the boundlessness of the conceptual, would be fully articulated. Since he arrives at the third moment prematurely, ignoring its prior moments, he obscures its truth (§1). In his dialetheist critique of formal logic, Priest enlists Hegel to dissolve the problem with assuming the duality of truth and falsity. But Priest restricts himself gratuitously to the second moment of logic, where contradictions within the categories are not yet resolved. Since he stalls at the second moment, severed from its final moment, he obscures its truth (§2). I argue we can extricate Hegel from quietist and dialetheist misreadings only if we grasp the truth of the three moments of logic. (shrink)

In a letter addressed to Mercator in 1558, John Dee made an odd announcement, describing the Portuguese mathematician and cosmographer Pedro Nunes as the ‘most learned and grave man who is the sole relic and ornament and prop of the mathematical arts among us’, and appointing him his intellectual executor. This episode shows that Dee considered Nunes one of his most distinguished contemporaries, and also that some connection existed between the two men. Unfortunately not much is known about this connection, (...) and even such basic questions such as ‘What could John Dee know about this Portuguese cosmographer’s scientific work?’ or ‘When, why and where did this interest come about?’ still lack proper answers. In this paper I address this connection and examine Nunes’ influence on Dee’s mathematical work. I argue that Dee was interested in Nunes’ work as early as 1552 . I also claim that Dee was aware of Nunes’ programme for the use of mathematics in studying physical phenomena and that this may have influenced his own views on the subject. (shrink)

Dès 1983, à l’occasion du colloque Une histoire des femmes est-elle possible? qui allait marquer le véritable départ de l’histoire des femmes en France, Alain Corbin soulignait la nécessité de se pencher aussi sur les « mentalités masculines », afin que puisse émerger une « histoire sexuée qui couple ses analyses ». L’auteur des Filles de noce resta longtemps peu entendu. Cette dernière décennie a pourtant vu une nette évolution s’amorcer, les masculinités françaises devenant peu à peu un ch...

Introduction: The potential therapeutic efficacy of real-time fMRI Neurofeedback has received increasing attention in a variety of psychological and neurological disorders and as a tool to probe cognition. Despite its growing popularity, the success rate varies significantly, and the underlying neural mechanisms are still a matter of debate. The question whether an individually tailored framework positively influences neurofeedback success remains largely unexplored.Methods: To address this question, participants were trained to modulate the activity of a target brain region, the visual motion (...) area hMT+/V5, based on the performance of three imagery tasks with increasing complexity: imagery of a static dot, imagery of a moving dot with two and with four opposite directions. Participants received auditory feedback in the form of vocalizations with either negative, neutral or positive valence. The modulation thresholds were defined for each participant according to the maximum BOLD signal change of their target region during the localizer run.Results: We found that 4 out of 10 participants were able to modulate brain activity in this region-of-interest during neurofeedback training. This rate of success is consistent with the neurofeedback literature. Whole-brain analysis revealed the recruitment of specific cortical regions involved in cognitive control, reward monitoring, and feedback processing during neurofeedback training. Individually tailored feedback thresholds did not correlate with the success level. We found region-dependent neuromodulation profiles associated with task complexity and feedback valence.Discussion: Findings support the strategic role of task complexity and feedback valence on the modulation of the network nodes involved in monitoring and feedback control, key variables in neurofeedback frameworks optimization. Considering the elaborate design, the small sample size here tested impairs external validity in comparison to our previous studies. Future work will address this limitation. Ultimately, our results contribute to the discussion of individually tailored solutions, and justify further investigation concerning volitional control over brain activity. (shrink)

The use of forward models is well established in cognitive and computational neuroscience. We compare and contrast two recent, but interestingly divergent, accounts of the place of forward models in the human cognitive architecture. On the Auxiliary Forward Model account, forward models are special-purpose prediction mechanisms implemented by additional circuitry distinct from core mechanisms of perception and action. On the Integral Forward Model account, forward models lie at the heart of all forms of perception and action. We compare these neighbouring (...) but importantly different visions and consider their implications for the cognitive sciences. We end by asking what kinds of empirical research might offer evidence favouring one or the other of these approaches. (shrink)

The economic crisis happening across the world over the last few years describes a range of interdependencies and interactions,and has highlighted the fundamentalf laws of neoclassical economic theory: its unedifying focus on prediction and, above all, its inability to explain how the economy really works. As such, it is increasingly recognised that economic phenomena cannot be exclusively investigated as being derived from deterministic, predictable and mechanistic dynamics. Instead, a new approach is required by which history-dependence, organic and ever-evolving processes are (...) also accounted for. As this view implies new challenges and opportunities for policy, we will focus our attention on innovative components of Complexity Theory for the study of economics and the evaluation of public policies. (shrink)

SummaryMutations in human genes encoding transcription factors are often dominant because one active allele cannot ensure a normal phenotype (haploinsufficiency). In other instances, heterozygous mutations of two genes are required for a phenotype to appear (combined haploinsufficiency). Here, we explore with models (i) the basis of haploinsufficiency and combined haploinsufficiency owing to mutations in transcription activators, and (ii) how the effects of such mutations can be amplified or buffered by subsequent steps in a transcription cascade. We propose that the non‐linear (...) (sigmoidal) response of transcription to the concentration of activators can explain haploinsufficiency. We further show that the sigmoidal character of the output of a cascade increases with the number of steps involved, the settings of which will determine the buffering or enhancement of the effects of a decreased concentration of an upstream activator. This exploration provides insights into the bases of compensatory mutations and on interloci interactions underlying oligogenic inheritance patterns. (shrink)

This paper evaluates the regulation of medical practice from the sixteenth to the eighteenth centuries in two Habsburg cities, Vienna and Osijek, in the light of the spread of medical knowledge and practice from the centre to the periphery of the Habsburg Monarchy. Although both cities were part of the Habsburg Monarchy for much of the early modern period, there were more differences than similarities between them. This may be explained by appealing to a variety of factors, including geographical position, (...) population structure, religion, government type, and professional organisations, all of which contributed to making medical practice very different in the two cities. The divergence occurred in spite of a central agenda for ensuring uniformity of medical practice throughout the Habsburg Monarchy. Although the legislation governing medical practice was the same in both cities, it was more strictly implemented in Vienna than in Osijek. In consequence, Osijek was the setting for some unique patterns of medical practice not to be found in the Habsburg capital. (shrink)

The world has not always been there. At least not in philosophy. This two-part article examines the complex interplay of concepts among which the idea of the world appeared, and analyses the characteristics that allow it to play a central role in the space of philosophy. These are found to be fundamentally two. First, its capacity to identify with the idea of a closed, ordered totality, at the same time as it erodes the consistency of the latter and opens the (...) philosophical space onto a positive use of the idea of indetermination. And second, the way in which it operates inside several well-ordered philosophical systems as a point of confusion: as a blurred point that lacks the type of clarity and distinction normally required of philosophical concepts, and that nonetheless appears to be important enough not to be expelled from philosophy. The first part of the article, published in this issue, reconstructs some of the coordinates within which the problematic notion of the world comes to appear. The planned second part will investigate how the idea of the world comes to play a central role within contemporary philosophy by allowing for a new articulation between the idea of the universal and the idea of totality – which produces a cascade of effects, the most notable of which are a new articulation of the idea of subject, and of the relation between philosophy and praxis. (shrink)

The goal of this study is to characterize observers’ abilities to discriminate between endogenous and exogenous changes. To do so, we developed a new experimental paradigm. On each trial, participants were shown a dot pattern on the screen. Next, the pattern disappeared and participants were to reproduce it. Changes were surreptuously introduced in the stimulus, either by presenting participants anew with the dot pattern they had themselves produced on the previous trial or by presenting participants with a slightly different dot (...) pattern . We analyzed awareness of the changes and behavioral adaptation to them in a dynamical manner. We observe signal attenuation in the presence of endogenous change, dissociation between self-attribution reports and behavioral effect of agency. We discuss the source of this sensitive attenuation as well as the relation between a minimal or core self and an extended, narrative or autobiographical self. (shrink)

In the literature, Weak Kleene logics are usually taken as three-valued logics. However, Suszko has challenged the main idea of many-valued logic claiming that every logic can be presented in a two-valued fashion. In this paper, we provide two-valued semantics for the Weak Kleene logics and for a number of four-valued subsystems of them. We do the same for the so-called Logics of Nonsense, which are extensions of the Weak Kleene logics with unary operators that allow looking at them as (...) Logics of Formal Inconsistency and Logics of Formal Underterminedness. Our aim with this work, rather than arguing for Suszko’s thesis, is to show that two-valued presentations of these peculiar logics enlighten the non-standard behavior of their logical connectives. More specifically, the two-valued presentations of paraconsistent logics illustrate and clarify the disjunctive flavor of the conjunction, and dually, the two-valued presentations of paracomplete subsystems of Weak Kleene logics reveal the conjunctive flavor of the disjunction. (shrink)

Résumé Dans les Entretiens, Félibien dit d’Annibal Carrache qu’il a renouvelé la peinture après une phase de décadence en se tournant vers les grands maîtres du passé. Il postule ce faisant une continuité dans la signification des « parties » de la peinture comme le « dessin », le « coloris », l’« expression » etc. En réalité, il ne peut être question d’une continuité, du moins si les « concepts fondamentaux » de Woelfflin, qui distinguent d’une façon très radicale (...) les styles du XVI e et du XVII e siècle, ont un sens quelconque. L’étude détaillée du terme « dessein » (« disegno ») montre qu’il correspond à des réalités techniques très différentes chez Raffaël et Le Brun par exemple et que ce glissement dont les théoriciens du XVIIe siècle ne sont pas conscients produit une théorie de l’art, à caractère polémique et « académique », basée structuralement sur la méconnaisance. La « dispute du coloris»s’en ressent fortement. Cette méconnaissance intervient au moment même où la théorie de l’art prend un essor nouveau avec l’apparition du spécialiste d’art de profession, dont Félibien est lui-même un des exemples les plus saillants. (shrink)