It is increasingly acknowledged that cognitive impairment can play an important role in depression vulnerability. Therefore, cognitive remediation strategies, and cognitive control training procedures have gained attention in recent years as possible interventions for depression. Recent studies suggest a small to medium effect on indicators of depression vulnerability. Despite initial evidence for the efficacy and effectiveness of CCT, several central questions remain. In this paper we consider the key challenges for the clinical implementation of CCT, including exploration of potential working (...) mechanisms and related to this, moderators of training effects, necessary conditions under which CCT could be optimally administered, such as dose requirements and training schedules, and how CCT could interact with or augment existing treatments of depression. Revisiting the CCT literature, we also reflect upon the possibilities to evolve toward a stratified medicine approach, in which individual differences could be taken into account and used to optimize prevention of depression. (shrink)

Several themes of David Lewis's theory of counterfactuals, especially their sensitivity to context, pave the way for a viable theory of non-trivial counterpossibles. If Lewis was successful in defending his account against the early objections, a semantics of counterpossibles can be defended from similar objections in the same way. The resulting theory will be extended to address 'might' counterfactuals and questions about the relative "nearness" of impossible worlds.

Temporal regularities in speech, such as interdependencies in the timing of speech events, are thought to scaffold early acquisition of the building blocks in speech. By providing on-line clues to the location and duration of upcoming syllables, temporal structure may aid segmentation and clustering of continuous speech into separable units. This hypothesis tacitly assumes that learners exploit predictability in the temporal structure of speech. Existing measures of speech timing tend to focus on first-order regularities among adjacent units, and are overly (...) sensitive to idiosyncrasies in the data they describe. Here, we compare several statistical methods on a sample of 18 languages, testing whether syllable occurrence is predictable over time. Rather than looking for differences between languages, we aim to find across languages (using clearly defined acoustic, rather than orthographic, measures), temporal predictability in the speech signal which could be exploited by a language learner. First, we analyse distributional regularities using two novel techniques: a Bayesian ideal learner analysis, and a simple distributional measure. Second, we model higher-order temporal structure—regularities arising in an ordered series of syllable timings—testing the hypothesis that non-adjacent temporal structures may explain the gap between subjectively-perceived temporal regularities, and the absence of universally-accepted lower-order objective measures. Together, our analyses provide limited evidence for predictability at different time scales, though higher-order predictability is difficult to reliably infer. We conclude that temporal predictability in speech may well arise from a combination of individually weak perceptual cues at multiple structural levels, but is challenging to pinpoint. (shrink)

Plausibly, no agent ever performs an action without some desire to perform that action. If so, a regress argument shows that, given incompatibilism, we are only rarely free. The argument sidesteps recent objections to this thesis.

Generalising what is learned about one stimulus to other but perceptually related stimuli is a basic behavioural phenomenon. We evaluated whether a rule learning mechanism may serve to explain such generalisation. To this end, we assessed whether inference rules communicated through verbal instructions affect generalisation. Expectancy ratings, but not valence ratings, proved sensitive to this manipulation. In addition to revealing a role for inference rules in generalisation, our study has clinical implications as well. More specifically, we argue that targeting inference (...) rules might prove to be an effective strategy to affect the excessive generalisation that is often observed in psychopathology. (shrink)

Est-il possible de faire travailler la ou les thèses de l’ouvrage de Michel Henry, Voir l’invisible, sur Kandinsky et si oui, comment? Si ces questions se posent à propos de n’importe quel livre d’esthétique, elles s’imposent dans le cas de Voir l’invisible dont le titre énigmatique, sinon provocateur, est renforcé par un sous-titre problématique, sur Kandinsky. Le livre est une monographie d’un genre particulier. Elle se développe sous la forme d’un commentaire des écrits théoriques d’un p...

L'appartenance religieuse est en Polynésie française un repère identitaire essentiel. Identités religieuse, familiale et insulaire étaient autrefois largement indissociables. Du fait de l'évolution économique et sociale et de la diversité des églises aujourd'hui représentées, cette combinaison est aujourd'hui plus incertaine, plus malléable. Dès lors, l'incorporation du christianisme aux cultures communautaires de Polynésie suppose une redéfinition, par les églises qui s'y engagent, des identités culturelles qu'elles entendent respecter. C'est en particulier le cas des deux églises historiques dominantes. La théologie de l'église (...) évangélique de Polynésie française tend à réinterpréter la culture ma'ohi pré-missionnaire comme une sorte de « christianisme primitif ». Quant à l'église catholique, en requalifiant des pratiques traditionnelles chinoises comme « culturelles », elle permet à la communauté chinoise de concilier christianisme et fidélité à la lignée ancestrale. (shrink)

In 1984 the renowned biologist Edward O. Wilson wrote that we are human in good part because of the particular way we affiliate with other organisms. They are the matrix in which the human mind originated and is permanently rooted, and they offer the challenge and freedom innately sought. To the extent that each person can feel like a naturalist, the old excitement of the untrammeled world will be regained. I offer this as a formula of reenchantment to invigorate poetry (...) and myth: mysterious and little known organisms live within walking distance of where you sit. Splendor awaits in minute proportions.1 This poetical quote nicely captures the essence of Wilson’s biophilia hypothesis. While the notion .. (shrink)

Cadherins are a multigene family of proteins which mediate homophilic calcium‐dependent cell adhesion and are thought to play an important role in morphogenesis by mediating specific intercellular adhesion. Different lines of experimental evidence have recently indicated that the site responsible for mediating adhesive interactions is localized to the first extracellular domain of cadherin. Based upon an analysis of the sequence of this domain, I show that cadherins can be classified into three groups with distinct structural features. Furthermore, using this sequence (...) information a phylogenetic tree relating the known cadherins was assembled. This is the first such tree to be published for the cadherins. One cadherin subtype, neural cadherin (N‐cadherin), shows very little sequence divergence between species, whereas all other cadherin subtypes show more substantial divergence, suggesting that selective pressure upon this domain may be greater for N‐cadherin than for other cadherins. Phylogenetic analysis also suggests that the gene duplications which established the main branches leading to the different cadherin subtypes occurred very early in their history. These duplications set the stage for the diversified superfamily we now observe. (shrink)

Alors que le temps présent paraît marqué par une incertitude forte, voire croissante, comment (re)trouver des prises sur ce qui est en devenir et qui pourrait composer le futur? Cette contribution propose de montrer que la science-fiction offre un matériau qui a aussi une pertinence et qui peut être travaillé pour être incorporé dans un processus de production de connaissance. Les textes de science-fiction peuvent en effet être pris à la fois comme un réservoir d’expériences de pensée et comme des (...) formes de problématisations (au sens de Michel Foucault). En s’appuyant sur un corpus de textes francophones et anglophones orientés vers un futur plus ou moins proche et généralement considérés comme porteurs de positions engagées (fiction spéculative, anticipation sociale, cyberpunk et postcyberpunk, biopunk, etc.), une première base de démonstration précisera d’abord l’appréhension réflexive qui peut être faite de la science-fiction au-delà de la forme culturelle et de son expression littéraire. Une seconde avancera ensuite une série de propositions méthodologiques pour saisir l’objet et pouvoir traduire cet imaginaire en prises expérimentales sur le futur. (shrink)

Optical distortions as a visual disturbance are inherent in many optical devices such as spectacles or virtual reality headsets. In such devices, distortions vary spatially across the visual field. In progressive addition lenses, for example, the left and right regions of the lens skew the peripheral parts of the wearers visual field in opposing directions. The human visual system adapts to homogeneous distortions and the respective aftereffects are transferred to non-retinotopic locations. This study investigates simultaneous adaptation to two opposing distortions (...) at different retinotopic locations. Two oppositely skewed natural image sequences were presented to 10 subjects as adaptation stimuli at two distinct locations in the visual field. To do so, subjects were instructed to keep fixation on a target. Eye tracking was used for gaze control. Change of perceived motion direction was measured in a direction identification task. The point of subjective equality, that is, the angle at which a group of coherently moving dots was perceived as moving horizontal, was determined for both retinal locations. The shift of perceived motion direction was evaluated by comparing PSE before and after adaptation. A significant shift at both retinal locations in the direction of the skew distortion of the corresponding adaptation stimulus is demonstrated. Consequently, parallel adaptation to two opposing distortions in a retinotopic reference frame was confirmed by this study. (shrink)

In epistemology and philosophy of science, there has been substantial debate about truth’s relation to understanding. “Non-factivists” hold that radical departures from the truth are not always barriers to understanding; “quasi-factivists” demur. The most discussed example concerns scientists’ use of idealizations in certain derivations of the ideal gas law from statistical mechanics. Yet, these discussions have suffered from confusions about the relevant science, as well as conceptual confusions. Addressing this example, we shall argue that the ideal gas law is best (...) interpreted as favoring non-factivism about understanding, but only after delving a bit deeper into the statistical mechanics that has informed these arguments and stating more precisely what non-factivism entails. Along the way, we indicate where earlier discussions have gone astray, and highlight how a naturalistic approach furnishes more nuanced normative theses about the interaction of rationality, understanding, and epistemic value. (shrink)

This research uses a normative approach to examine the relationship between basic income and migration. The decisive variable is the effect of labour automation, which increases economic insecurities globally, leaving some nation states in a position to cope with this and others not. The insecurities will increase migratory pressures on one hand but also justify the introduction of basic income on a nation state level on the other. The normative guideline is the republican conception of freedom as non-domination. This is (...) used to justify a basic income, analyse how labour automation creates dominating structures and how borders dominate migrants seeking to move to countries which introduce a basic income. The result is that nation states that introduce a basic income to counter internal domination through labour automation, also have to look outside of their nation state. The imposition of borders in order to keep a basic income sustainable as well as labour automation itself, establish a form of domination over less developed countries and thus demand international regulation. (shrink)

The best arguments for possible worlds as states of affairs furnish us with equally good arguments for impossible worlds of the same sort. I argue for a theory of impossible worlds on which the impossible worlds correspond to maximal inconsistent classes of propositions. Three objections are rejected. In the final part of the paper, I present a menu of impossible worlds and explore some of their interesting formal properties.

In 1984, Edward O. Wilson proposed the idea that natural selection has resulted in an adaptive love of life-forms and life-like processes ('biophilia') in humans. To date, the idea of biophilia has been viewed as an ultimate explanation of many conservation attitudes in humans. In this paper, we contend that environmental ethics has little to gain from the biophilia hypothesis. First, the notion is open to various and even conflicting interpretations. Second, the empirical findings that do seem to corroborate a (...) more well-defined version of the biophilia hypothesis can often be accounted for by alternative hypotheses. Third, the evolutionary reasoning behind the biophilia hypothesis tends to be unclear, and sometimes even inaccurate. (shrink)

Standard dual-process models in the action domain postulate that stimulus-driven processes are responsible for suboptimal behavior because they take them to be rigid and automatic and therefore the default. We propose an alternative dual-process model in which goal-directed processes are the default instead. We then transfer the dual- process logic from the action domain to the emotion domain. This reveals that emotional behavior is often attributed to stimulus-driven processes. Our alternative model submits that goal-directed processes could be the primary determinant (...) of emotional behavior instead. We evaluate the type of empirical evidence required for validating our model and we consider implications of our model for behavior change, encouraging strategies focused on the expectancies and values of action outcomes. (shrink)

Due to restrictions against the COVID-19 pandemic, spectators were not allowed to attend soccer matches at the end of the 2019/2020 season. Previous studies suggest that the absence of a home crowd changes the home field advantage in terms of match outcomes, offensive performance, and referee decisions. However, because of the small sample sizes, these changes may be random rather than meaningful. To test this, we created 1,000,000 randomized samples from the previous four seasons with the exact same number of (...) matches played behind closed doors in Europe’s four most elite soccer leagues at the end of the 2019/2020 season. We found that across countries, performance indices and referee decisions indeed changed to the detriment of the home team beyond the level of chance. However, this overall pattern could be ascribed to specific countries. Most importantly, the proportion of points won by the home teams declined significantly only in Germany, which was accompanied by a meaningful increase in the proportion of goals scored by the away teams and the proportion of yellow cards given to the home teams. We conclude that the home field advantage may indeed be lost when spectators are absent. However, in future studies, more detailed behavioral analyses are needed to determine the robustness and the behavioral determinants of this phenomenon across leagues and countries. (shrink)

We describe reversible adaptive trees, a class of stochastic algorithms modified from the formerly described adaptive trees. They evolve in time a finite subset of an ambient Euclidean space of any dimension, starting from a seed point and, accreting points to the evolving set, they grow branches towards a target set which can depend on time. In contrast with plain adaptive trees, which were formerly proven to have strong convergence properties to a static target, the points of reversible adaptive trees (...) are removed from the tree when they have not been used recently enough in a path from the root to an accreted point. This, together with a straightening process performed on the branches, permits the tree to follow some moving targets and still remain adapted to it. We then discuss in what way one can see such reversible trees as a model for a qualitative property of resilience, which leads us to discuss qualitative modeling. (shrink)

This entry provides a brief exposition and formal reconstruction of the argument for possible worlds in David Lewis's _Counterfactuals_.

In 2012, the international PISA survey reinforced the observation that the French educational system is one of the most unequal among OECD countries. The observation of serious inequalities in access to educational success for pupils from disadvantaged backgrounds could lead to a pessimistic vision suggesting that any possibility of transformation of the system is doomed to failure. Thus, the fight against inequalities in access to educational success is a form of runaway object which constitutes a challenge for research which treats (...) the social context as evolving and susceptible to significant and novel transformations. Developmental work research aims to support the work of professionals in the re-elaboration of their practices by seeking to go beyond the status quo of an unequal school. Drawing on this framework within an institutional network of schools, we seek to show how the intervention has highlighted power issues inscribed in the structures and how the actors, through their commitment in the research collaborative process, seek to go beyond the power issues inscribed in their work routines and enacted during the research process by different kinds of antagonism. We will argue that the fight against educational inequality involves overcoming systemic power relations crystallized in institution. This systemic power is expressed by a form of episodic power. Our results show restrictive and constructive effect on the expansive learning process and on the construction of a collective in the formative interventions. The restrictive side of epistemic power should be linked to systemic power which is historically inherited. We discuss the results in the light of the emergence of a fourth generation of activity theory. Our research makes it possible to make conceptual and methodological progress in the construction of a fourth generation of activity theory by showing the need for analysis and expansively learn about problematic power relations in heterogeneous collectives. (shrink)

To a large extent and one that is highly structuring, energy choices that are made in a society are political choices. This article aims at studying how these choices can be redirected by technological developments associated with renewable energy, thus contributing to a redistribution of opportunities and correspondingly to social reorganizations. In order to show that the development of alternative energies not only depends on technological advances but can also, in the process, reveal political potentialities, three steps are proposed. The (...) first step will clarify the theoretical arguments in favor of an approach in terms of “technological potentialism.” Second, we will extend this approach by identifying a set of potentialities linked with renewable energies and the model that could arise from these alternative forms or approaches. Finally, we will examine how these potentialities could find paths to become effective. (shrink)

Warum besteht Nietzsche so sehr auf der Hässlichkeit von Sokrates? Ist er nur grundlos gemein, wie es so oft behaupter wurde? Wäre es nicht denkbar, dass die Physiologie der Kunst dieser Hässlichkeit einen tiefen philosophischen Sinn verleiht? Dies ungeheure Unschönheit ist ein Mittel, die stets unfassbare Figur von Sokrates zu erfassen. Aus diesser Hässlichkeit, und nach der Entschlüsselung seines lezten Wortes: "Oh Kriton, ich bin dem Asklepios einen Hahn schuldig", das auch Nietzsche so sinnvoll erschien, werden wir die doppelte Gestalt (...) - griechisch/antigriechisch - der philosophischen Figur von Sokrates untersuchen, um die Rolle, die er in dem Verfall der griechischen Kultur gespielt hat, zu verstchen.Why is it that Nietzche insists so much upon Socrates' ugliness? Is it simply gratuitous hatred, as has often been argued? Are there not good grounds to believe that the physiology of art endows this ugliness with profound philosophical meaning? Heavily emphasized, the latter constitutes a valuable tool with which to gain an understanding of the nature of the ever evasive character that Socrates represents. It is from this ugliness, then, and by deciphering his mysterious last words, "Oh Crito I owe Asclepius a cock", so rich in meaning in Nietzsche's eyes, that we shall analyse the double Greek/anti-Greek status of the philosophical character Socrates - and in doing so - shed some light upon the role that he played in the decline of Greek culture. (shrink)

Introduction of O2 to Earth's early biosphere stimulated remarkable evolutionary adaptations, and a wide range of electron acceptors allowed diverse, energy-yielding metabolic pathways. Enzymatic reduction of O2 yielded a several-fold increase in energy production, enabling evolution of multi-cellular animal life. However, utilization of O2 also presented major challenges as O2 and many of its derived reactive oxygen species are highly toxic, possibly impeding multicellular evolution after the Great Oxidation Event. Remarkably, ROS, and especially hydrogen peroxide, seem to play a major (...) part in early diversification and further development of cellular respiration and other oxygenic pathways, thus becoming an intricate part of evolution of complex life. Hence, although harnessing of chemical and thermo-dynamic properties of O2 for aerobic metabolism is generally considered to be an evolutionary milestone, the ability to use ROS for cell signaling and regulation may have been the first true breakthrough in development of complex life. The importance of Earth's oxygen cycle and reactive oxygen species produced on the evolution of complex life. The ability to detoxify oxygen species is not a trait that emerged as a response to increased O2 levels but rather crucial adaptation to the early Earth's weakly oxic microenvironments. (shrink)

According to Brian Leftow's modal voluntarism, some necessary truths about created beings depend on the divine will. One might expect this view to be in tension with Molinism, according to which some contingent truths about creatures' free actions are independent of the divine will. It is argued that modal voluntarism is consistent with a lightly modified Molinism.

Dans cet article, je discuterai de l’idée selon laquelle l’École polytechnique au xixe siècle ne permettait pas aux acteurs (les élèves et les enseignants) de réaliser des travaux mathématiques originaux. En fait, plusieurs historien⋅ne⋅s pensent que les programmes d’examens empêchaient les élèves et les enseignants de prendre des initiatives. J’essayerai de nuancer cette idée, en prenant en compte plusieurs exemples liés à l’enseignement des équations numériques au cours du xixe siècle. Plus précisément, je présente dans cet article trois théorèmes attribués (...) à trois enseignants de l’École polytechnique et qui ont circulé parmi les élèves de l’École et parmi des milieux d’enseignement. Ces exemples sont intéressants car ils donnent des informations à propos de l’École polytechnique et à propos de l’enseignement et de l’apprentissage qui s’y pratiquaient. Ils permettent aussi de mieux connaître la façon dont la recherche de résultats mathématiques nouveaux pouvait, dans ce contexte, être liée à des activités pédagogiques et je vais expliquer comment ce lien a de nombreuses conséquences sur l’activité d’un enseignant comme Edmond Laguerre par exemple. (shrink)

Plausibly, if an object persists through time, then its later existence must be caused by its earlier existence. Many theists endorse a theory of continuous creation, according to which God is the sole cause of a creature's existence at a given time. The conjunction of these two theses rather unfortunately implies that no object distinct from God persists at all. What strategies for resolving this difficulty are available? (Published Online April 7 2006).