À partir d’une étude de cas portant sur le « scandale des fiches », qui mit en cause les pratiques de surveillance de la police politique suisse, nous montrons que, contrairement à ce qu’affirment nombre de travaux, l’ampleur du scandale ne peut-être déduite de celle de l’indignation pas plus que cette dernière ne peut être rapportée à la gravité supposée de transgressions. Un scandale n’émerge que si des acteurs, à partir de leur évaluation de la situation et de leurs perceptions (...) du possible, s’autorisent à exprimer publiquement une indignation, qu’elle soit feinte ou sincère, et parviennent à imposer une qualification déviante des pratiques concernées entraînant des mobilisations dans plusieurs espaces sociaux. En déplaçant la focale sur la dynamique émergente de mobilisations multisectorielles, nous plaidons pour une approche relationnelle et processuelle de la dimension émotionnelle du scandale, inséparable de sa dimension cognitive. (shrink)

The problem of measurement is often considered an inconsistency inside the quantum formalism. Many attempts to solve it have been made since the inception of quantum mechanics. The form of these attempts depends on the philosophical position that their authors endorse. I will review some of them and analyze their relevance. The phenomenon of decoherence is often presented as a solution lying inside the pure quantum formalism and not demanding any particular philosophical assumption. Nevertheless, a widely debated question is to (...) decide between two different interpretations. The first one is to consider that the decoherence process has the effect to actually project a superposed state into one of its classically interpretable component, hence doing the same job as the reduction postulate. For the second one, decoherence is only a way to show why no macroscopic superposed state can be observed, so explaining the classical appearance of the macroscopic world, while the quantum entanglement between the system, the apparatus and the environment never disappears. In this case, explaining why only one single definite outcome is observed remains to do. In this paper, I examine the arguments that have been given for and against both interpretations and defend a new position, the “Convivial Solipsism”, according to which the outcome that is observed is relative to the observer, different but in close parallel to the Everett’s interpretation and sharing also some similarities with Rovelli’s relational interpretation and Quantum Bayesianism. I also show how “Convivial Solipsism” can help getting a new standpoint about the EPR paradox providing a way out of the seemingly unavoidable non-locality of quantum mechanics. (shrink)

A large number of physicists now admit that quantum mechanics is a non-local theory. The EPR argument and the many experiments showing the violation of Bell’s inequalities seem to have confirmed convincingly that quantum mechanics cannot be local. Nevertheless, this conclusion can only be drawn inside a standard realist framework assuming an ontic interpretation of the wave function and viewing the collapse of the wave function as a real change of the physical state of the system. We show that this (...) standpoint is not mandatory and that if the collapse is not considered an actual physical change it is possible to recover locality. (shrink)

BackgroundAt the start of 2021, oncologists lacked the necessary scientific knowledge to adapt their clinical practices optimally when faced with cancer patients refusing or reluctant to be vaccinated against COVID-19, despite the marked vulnerability of these patients to severe, and even fatal forms of this new viral infectious disease. Oncologists at Foch Hospital were confronted with this phenomenon, which was observed worldwide, in both the general population and the population of cancer patients.MethodsBetween April and November 2021, the Ethics and Oncology (...) Departments of Foch Hospital decided to investigate this subject, through an empirical and interdisciplinary study in bioethics. Our scientific objective was to try to identify and resolve the principal bio-ethical issues, with a view to improving clinical practices in oncology during future major pandemics of this kind, from a highly specific bio-ethical standpoint. We used a mainly qualitative methodological approach based on questionnaires and interviews.ResultsIn April 2021, 29 cancer patients refused or were reluctant to be vaccinated. Seventeen of these patients said that making vaccination mandatory would have helped them to accept vaccination. In October 2021, only 10 cancer patients continued to maintain their refusal. One of the main reasons for the decrease in refusals was probably the introduction of the “pass sanitaire” in July 2021, which rendered vaccination indispensable for many activities. However, even this was not sufficient to convince these 10 cancer patients.ConclusionWe identified a key bio-ethical issue, which we then tried to resolve: vaccination policy. We characterized a major tension between “the recommendation of anti-COVID-19 vaccination” and “free will”, and the duty to “protect each other”. Mandatory vaccination, at least in France, could resolve this tension, with positive effects on quality of life, or survival, in cancer patients initially refusing or reluctant to be vaccinated, but only if collective and individual scales are clearly distinguished. (shrink)

Eigenfeatures are created by the principal component approach (PCA) used on objects described by a low-level code (i.e., pixels, Gabor jets). We suggest that eigenfeatures act like the flexible features described by Schyns et al. They are particularly suited for face processing and give rise to class-specific effects such as the other-race effect. The PCA approach can be modified to accommodate top-down constraints.

Le droit, l'économie, la gestion, l'histoire, la linguistique, la sociologie abordent la question des règles à leur manière propre. Une confrontation de leurs approches apparaît nécessaire et féconde.

Le De coniecturis de Nicolas de Cues illustre le danger de solipsisme qui menace toute doctrine faisant de la recherche de la « vérité précise » une recherche sans fin. Ce thème n’est pas sans évoquer celui de la traduction. Si la connaissance est individualisée, souligne le Cusain, la compréhension des autres hommes devient en effet problématique : « Personne ne peut jamais concevoir parfaitement la compréhension d’autrui, même si certains s’en approchent plus que d’autres ». Comment pouvons-nous savoir ce (...) que pense un autre homme? Comment pouvons-nous savoir que les signes par lesquels nous communiquons avec les autres ont la même signification pour eux et pour nous? Si les différentes conjectures des différentes personnes sont sans rapport les unes avec les autres, elles sont intraduisibles. Comment donc nous comprendre? Telles sont les questions soulevées par cet article. (shrink)

We give a constructive treatment of the theory of Noetherian rings. We avoid the usual restriction to coherent rings; we can even deal with non-discrete rings. We introduce the concept of rings with certifiable equality which covers discrete rings and much more. A ring R with certifiable equality can be fitted with a partial ideal membership test for ideals of R. Lazy bases of ideals of R [X ] are introduced in order to derive a partial ideal membership test for (...) ideals of R [X ]. It is then proved that if R is Noetherian, then so is R [X ]. (shrink)

Ce dossier porte sur une thématique qui n’a pas encore été abordée centralement dans la revue et qui l’est de manière dispersée en sociologie politique autour de problématiques distinctes que l’on se propose ici de rapprocher. Partant d’une conception large de la notion de démocratie comme se rapportant à un ensemble d’activités fondées simultanément sur la souveraineté populaire et l’État de droit et spécifiquement dédiées au gouvernement de la société, deux dimensions doivent être soulignées. D’une part, ces activités se déploient (...) dans des institutions particulières, soit des organes de l’État (parlement, gouvernement, tribunaux) dans lesquels s’exerce un pouvoir de décision susceptible d’orienter l’action publique menée dans l’ensemble de la société. D’autre part, elles s’inscrivent dans une compétition réglée, dont l’enjeu est précisément la conquête des pouvoirs d’État que détiennent ces autorités politiques. Comme tel, l’espace politique démocratique manifeste une ambivalence... (shrink)

Lorsqu'en 1843 Marx commente la philosophie du droit de Hegel il ne commente que le chapitre final sur l’État. Curieusement le chapitre dont on pourra dire après coup, lisant l'ensemble de l'œuvre de Marx, qu'il était le plus proche de lui n'est pas commenté. La raison de cela peut être parfaitement contingente, manque de temps à l'époque où il met en marche cette critique de Hegel et aussi plus tard. Dans la préface aux Manuscrits de 1844 il met en avant (...) la lourdeur qu'un tel travail critiqu... (shrink)

Network Analysis is considered as a new method that challenges Latent Variable models in inferring psychological attributes. With Network Analysis, psychological attributes are derived from a complex system of components without the need to call on any latent variables. But the ontological status of psychological attributes is not adequately defined with Network Analysis, because a psychological attribute is both a complex system and a property emerging from this complex system. The aim of this article is to reappraise the legitimacy of (...) latent variable models by engaging in an ontological and epistemological discussion on psychological attributes. Psychological attributes relate to the mental equilibrium of individuals embedded in their social interactions, as robust attractors within complex dynamic processes with emergent properties, distinct from physical entities located in precise areas of the brain. Latent variables thus possess legitimacy, because the emergent properties can be conceptualized and analyzed on the sole basis of their manifestations, without exploring the upstream complex system. However, in opposition with the usual Latent Variable models, this article is in favor of the integration of a dynamic system of manifestations. Latent Variables models and Network Analysis thus appear as complementary approaches. New approaches combining Latent Network Models and Network Residuals are certainly a promising new way to infer psychological attributes, placing psychological attributes in an inter-subjective dynamic approach. Pragmatism-realism appears as the epistemological framework required if we are to use latent variables as representations of psychological attributes. (shrink)

Our position is critical of the dominant method in psychology, and critical of the social use of psychological models. We assert that the scientific approach in psychology must break with modernist claim, but without sinking into post-modernist relativism. We consider that the epistemology associated with experimental psychology should be a specific epistemology associated with the particular objects studied. By calling on pragmatism and realism, psychology can find the resources to use quantitative studies as an action deployed within a complex, interactive (...) and dynamic social space, and thus break with its normative practice and function. (shrink)

Ghost Image is made up of sixty-three short essays—meditations, memories, fantasies, and stories bordering on prose poems—and not a single image. Hervé Guibert’s brief, literary rumination on photography was written in response to Roland Barthes’s Camera Lucida, but its deeply personal contents go far beyond that canonical text. Some essays talk of Guibert’s parents and friends, some describe old family photographs and films, and spinning through them all are reflections on remembrance, narcissism, seduction, deception, death, and the phantom images (...) that have been missed. Both a memoir and an exploration of the artistic process, Ghost Image not only reveals Guibert’s particular experience as a gay artist captivated by the transience and physicality of his media and his life, but also his thoughts on the more technical aspects of his vocation. In one essay, Guibert searches through a cardboard box of family portraits for clues—answers, or even questions—about the lives of his parents and more distant relatives. Rifling through vacation snapshots and the autographed images of long-forgotten film stars, Guibert muses, “I don’t even recognize the faces, except occasionally that of an aunt or great-aunt, or the thin, fair face of my mother as a young girl.” In other essays, he explains how he composes his photographs, and how—in writing—he seeks to escape and correct the inherent limits of his technique, to preserve those images lost to his technical failings as a photographer. With strains of Jean Genet and recurring themes that speak to the work of contemporary artists across a range of media, Guibert’s Ghost Image is a beautifully written, melancholic ode to existence and art forms both fleeting and powerful—a unique memoir at the nexus of family, memory, desire, and photography. (shrink)

The practice and development of modern medicine requires large amounts of data, particularly in the domain of cancer. The future of personalized medicine lies neither with “genomic medicine” nor with “precision medicine”, but with “data medicine”. The establishment of this DM has required far-reaching changes, to establish four essential elements connecting patients and doctors: biobanks, databases, bioinformatic platforms and genomic platforms. The “transformation” of scientific research areas, such as genetics, bioinformatics and biostatistics, into clinical specialties has generated a new vision (...) of care. Molecular tumor boards are one response to these changes and are now providing better access to next-generation sequencing and new cancer treatments to patients with inoperable or metastatic cancers, and those for whom the usual treatment has failed. However, MTB face a crucial ethical challenge: maintaining and improving the trust of patients, clinicians, researchers and industry in academic medical centers supported by private or public funding rather than providing genetic data directly to private companies. We believe that, in this era of DM, appropriate modern digital communication networks will be required to maintain this trust and to improve the organization and effectiveness of the system. There is, therefore, a need to reconsider the form and content of informed consent documents at all academic medical centers and to introduce dynamic and electronic informed consent. (shrink)

Ce premier volume de La Nuit des Olympica. Essai sur le national cartésianisme (deux livres en quatre tomes) inaugure l'une des plus saines entreprises de la pensée contemporaine : que cesse le mythe Descartes! Finissons-en avec l'imagerie nationale. Suivons René Descartes dans les moments clés de sa vie, ancrons-le dans son époque de reconquête catholique et de consolidation de l'absolutisme. Traquons en ses feintes le premier de ces hommes en qui Nietzsche dénonçait un " prêtre masqué ", le philosophe. Multipliant (...) points de vue et rapprochements, enrichissant le texte de très abondantes notes, souvent surprenantes, l'auteur instruit le procès de cette source vive de la tradition française, rationaliste et spiritualiste, tant avec insolence et humour que dans une écriture aux antipodes de tout académisme. (shrink)

BackgroundImplementing responsible conduct of research and monitoring bad practices requires time and tact. In France, it was in 2015 that the wishes of those in charge of research proposed the appointment of research integrity officers (RIOs) in all universities, national higher education schools, and research institutions. Our objectives were to search for information to describe the RI development and to analyze the RIOs’ profiles.MethodsThe OFIS (Office Français de l’Intégrité Scientifique) website lists all public research institutions and universities (RIUs) and their (...) designated RIOs. During the period between 6 and 14 October 2018, and on 2 May 2019 (updating), we entered two keywords (“plagiat” and “intégrité”) into the search engines on the RIU homepages and retrieved the relevant information (including “research” and “scientific” integrity when “intégrité” was entered). We consulted the governance and downloaded the organigram to determine whether the RIO positions and names were mentioned. We searched for the domains of expertise, sex, and age of the RIOs from their CVs (institutional websites), LinkedIn profiles, and various Google links.ResultsThe OFIS website lists 142 RIUs. Searching for the keyword “plagiarism” retrieved 25 RIUs; however, the web information was minimal, and consisted entirely of charters, interviews, and rare training modules. The keyword “integrity” turned up 23 RIUs. Nonetheless, there was little information available beyond notices for seminars, events, and a few training modules. Of the total 142 RIUs, 66.2% (n = 94) had named 96 RIOs. Furthermore, 29.2% RIOs (n = 28) were female and 70.8% (n = 68) were male; 38 RIOs were retired (> 65 years old) 58 were active (< 65 years old), and had a RIO function added to their usual laboratory activities.ConclusionThere is a lack of information about RI on the websites of French universities and research organizations, which may reflect a lack of information and commitment in the institutions themselves. (shrink)

Trust is a key ingredient of business activities. Scams are spectacular betrayals of trust. When the victim is a powerful organization that does not look vulnerable at first sight, we can suspect that this organization has developed an excessive trust, or over-trust. In this article, we take over-trust as the result of the intentional production of gullibility by the scammer. The analysis of a historically famous scam case, the Elf “Great Sniffer Hoax,” suggests that the victim is made gullible by (...) the scammer through a range of seduction and protection maneuvers that prevent the victim from developing doubts and suspicions. An integrated framework of the production of gullibility in organizations is proposed in order to further our understanding of over-trust. We discuss how these insights might be extended, beyond the case of scams, to more ordinary contexts of business activities. (shrink)

ArgumentRaspail’s domestic medicine method, popularized in 1840s France, has similarities with the practices of nineteenth century non-academic healers. His mass marketing of camphor as a universal treatment echoes the practices of “charlatans” and their circles. But Raspail is also very original in this history of popular care. As a scientist, a popularizer of encyclopedic knowledge and a political activist, he managed to blur traditional distinctions between science and politics and between popular and learned medicine. Raspail was a constant thorn in (...) the side of academic institutions and professional organizations, which were struggling to gain legitimacy. His work took a political turn when he combined, within a single project, his approach to treatment and his call for democratizing medical care. Raspail’s method challenged institutional norms by acknowledging the importance of the patient’s contribution to the healing process, and recognizing the necessity of thwarting the occasionally deleterious effects of monopolistic medicalization. (shrink)

La reconnaissance accordée en sciences cognitives (Van Gelder et Varela) à l’analyse husserlienne du présent mental en termes de rétention et protension a manqué sa radicalité transcendantale, qui est aussi la limite de cette analyse. Si l’on recherche dans la subjectivité l’origine de notre sens du temps, il ne suffit pas de revenir au présent mental par réduction du temps objectif, il faut élargir aux aspects grammaticaux et aux rythmes biologiques l’éventail des moyens d’accès au temps d’un sujet incarné dans (...) le monde de la vie. (shrink)

L’article examine la ąuestion de concept cousain de relations trinitaires exprimées par catégories d’unitrinité et triunité. Le fond des analyses est la tradition pythagoricienne et néo-platonicienne à laąuelle Nicolas de Cues se rattache, selon l’Auteur, comme l’un des représentants de la vision hénologiąue de la réalité. La specificite de l’approche presente de la philosophie de Nicolas de Cues est de l’envisager à la lumière du rapport entre l’Un et l’Être, fortement marąué par de nombreuses références à la philosophie de Martin (...) Heidegger. (shrink)

Dans la postface, rédigée en 1873, de la deuxième édition allemande du Capital, Marx se dira le disciple de Hegel, tout en indiquant qu’il avait, trente ans plus tôt, critiqué « le côté mystificateur » de sa dialectique. Il évoque ici un texte, non paru de son vivant, maintenant géné­ralement considéré comme ayant été rédigé entre mars et août 1843 à Kreuznach, parce que l’influence de deux textes de Feuerbach parus en février de cette même année dans la revue Anekdo...

Through a close analysis of various moments within two hours of video-taped interaction, we investigate properties of the setting that the participants cannot ignore even as they transform them in various ways. These properties are not under local control. What is under control is revealed in the participants' “play” with the properties, including dangerous, “deep” play. In this process, some properties of the participants are rarely mentioned (e.g., that the laboring woman is an MD), others are repeatedly emphasized (e.g. the (...) strength of contractions). And others appear in ways that have not been dealt with adequately in current theoretical frameworks. To deal with life-threatening lies, and jokes about lies, we must move away from theories of hegemonic particularity that rely on a habitus. Rather we must acknowledge the practical understandings revealed in the collective submergence of that which may be actively noted as potentially relevant and then set aside so that other tasks can be foregrounded and achieved. (shrink)

Means–ends decoupling, the institutionally induced implementation of ineffective practices, has become increasingly common. Extant theory suggests that means–ends decoupling has real consequences, which makes it unstable and difficult for organizations to sustain. Yet little is known of how, and with what outcomes, firms organize such means–ends decoupling. We examine organizing via multiple qualitative and longitudinal case studies of how Swedish fast fashion retailers implement and manage the collection of used garments. We find that firms combine two organizational arrangements: structural and (...) temporal core–compartment separations, which mitigate consequences of means–ends decoupling by obscuring and justifying efficiency gaps. Thereby we provide a theoretical explanation for how means–ends decoupling can persist over time. (shrink)

In the history of war thinking, a transhistorical approach has emerged, with the value of not subjecting the theory to circumstances, particularly those fuelled by technical factors. This ambition was closely linked to Clausewitz’s theory, which was based on the difference between the historical character of “real war” and the transhistorical character of “absolute war”. Prior to Clausewitz’s theory, the transhistorical character had crept into the thinking on warfare in the modern era, which had developed a great deal around the (...) use of firearms, a character to which some theorists did not want to submit. During the First World War, the French army produced new weapons, such as tanks and aerial bombardment. It was therefore the ability to adapt to the historical circumstances of this war that was later considered to be the cause of victory, as the historian Marc Bloch later emphasised when he defined history as a “science of change”. After the Second World War, the major changes in warfare fuelled a tendency to refer to Clausewitz’s transhistorical theory in order to continue to think about war despite its major changes. The transhistorical approach was therefore a historical phenomenon. (shrink)

Apres avoir reconnu la justesse du geste henryen, consistant à placer l’individu vivant au centre de son interprétation, c’est l’atomisation voire l’approche « nominaliste » du travail qui en découle qu’Hervé Touboul met vigoureusement en question, au fil d’une analyse approfondie de la manière dont M. Henry en viendrait à méconnaitre les dialectiques, toujours à l’œuvre dans le texte de Marx, de la quantité et de la qualité, ou de la valeur d’usage et de la valeur d’échange. L’auteur pense (...) décisif d’interroger la posture henryenne : la conception réductrice du travail – comme qualité pure et refus de l’objectivité, au nom de la subjectivité transcendantale. D’où la difficulté à aborder la socialité du travail – les médiations dont elle est tissée, son anonymat irréductible à toute inter-personnalité – et au-delà, à dégager les conditions de sa répétition proprement politique. (shrink)

Dans la gestion peu évangélique des délits sexuels, commis par des clercs, l’ecclésiologie catholique courante a montré des faiblesses systémiques, qu’illustre particulièrement l’usage de la dichotomie « sacerdoce et laïcat » dans la forme qu’a favorisée le tridentinisme. Ce dernier a compris l’ordination moins comme accès au pastorat d’une Eglise et plus comme une dotation personnelle de pouvoirs sacramentels, sans liens nécessaires avec une Église locale. Ce modèle connaît sa fin en Occident, malgré son exaltation récente, conjuguée à celle des (...) nouveaux mouvements. Le renouveau passerait par une plus grande responsabilisation des diocèses et de leurs évêques, allant de pair avec une synodalité effective, un statut renouvelé du clergé et une révision de la théologie de la vocation aux ministères ordonnés, dans le sens rappelé par saint Pie X. (shrink)

In a recent paper (Zwirn in Phys Essays 30: 3, 2017), I argued against backward in time effects used by several authors to explain delayed choice experiments. I gave an explanation showing that there is no physical influence propagating from the present to the past and modifying the state of the system at a time previous to the measurement. However, though the solution is straightforward in the case of delayed choice experiments involving only one particle, it is subtler in the (...) case of experiments involving two entangled particles because they give rise to EPR-like situations. Considering that a measurement is not an actual change of the physical state of a system and is relative to the observer allows to understand that there is neither backward in time effects nor instantaneous collapse of the second system when the first one is measured, as is often postulated. This allows also to get rid of any non-locality (Zwirn in Found Phys 50:1–26, 2020). In this paper, I want to go further into the consequences of this way of considering the measurement, that I have called Convivial Solipsism, and show that even if, in the usual sense, there is no physical effect of the present or of the future on the past, we must nevertheless consider that the observer’s past is sometimes not entirely determined and that it becomes determined only when certain measurements are done latter. This apparent contradiction disappears if one understand that each observer builds, through her own measurements, her own world (that I call the phenomenal world in Convivial Solipsism) which is different from what we are used to consider as the common world shared by everybody. (shrink)

Résumé Beaucoup de cinéastes et de théoriciens français ont très longtemps clamé que le cinéma ne consistait pas à produire des images, mais des plans – catégorie adossée à la notion de durée et très vague, puisqu’elle désigne une découpe à la fois spatiale et temporelle. Cette réticence au concept d’image a ainsi nourri une sorte de « Yalta » cinéphile, distinguant la lignée des frères Lumière (la vue comme art du réel) et celle de Georges Méliès (le tableau fantasmagorique). (...) Cette opposition entre image (souvent assimilée, ici, à l’imagerie ou au cliché) et plan-durée peut être comparée à la fort ancienne querelle du dessin et de la couleur (ce qui cerne et ce qui déborde). Nous tenterons ici d’étudier l’éventualité d’un « icono-réalisme », en nous appuyant notamment sur les travaux de Gilles Deleuze et de Jacques Rancière (La Fable cinématographique), ainsi que sur un moyen-métrage de Pier Paolo Pasolini, La Ricotta (1963). (shrink)

La question des savoirs locaux suscite de nombreux débats sur la valeur et la considération que les uns et les autres leur accordent. Au-delà des aspects les plus vulgarisés que sont l’environnement et à la pharmacopée, cet article met en évidence une conception plus holiste des savoirs locaux et montre que leur valorisation est un enjeu de justice cognitive. À cette fin, l’auteur propose une stratégie numérique en quatre points adaptée au contexte camerounais : l’acquisition de compétences numériques par les (...) citoyens pour en faire des enregistreurs de savoirs locaux, les logiciels libres pour les stocker, le libre accès pour les diffuser et les politiques gouvernementales. (shrink)

En 1928 la théorie des form constants par Klüver catégorisait les hallucinations visuelles en quatre grandes catégories. Alors que la notion de form constants venait à s’appliquer virtuellement à toutes les figures entoptiques, comme l’avait prévu son auteur, dont les photismes synesthésiques, Cytowic a décrit et Carol Steen représenté ce que voient réellement des synesthètes visuels. L’une des caractéristiques d’œuvres de peintres synesthètes serait justement la présence de ces formes classées par Klüver. L’anthropologie avec la thèse de l’externalisation a montré (...) que certaines cultures ont repris les form constants perçues dans le premier stade de l’intoxication pour en faire les patterns de leur art. Les modèles physiologico-mathématiques permettent de localiser en V1 l’origine de production des photismes et d’expliquer leur morphogénèse. Mais une explication des circuits neuraux empruntés pour passer des différents types de déclencheur sensoriel à l’apparition de photismes synesthésiques reste aujourd’hui au stade de l’hypothèse. La synesthésie est l’objet de recherches alliant les sciences les plus contemporaines dont la génomique. Il est possible que les études sur la synesthésie transforment son statut de phénomène marginal en un élément essentiel dans la compréhension du système physiologique sous-jacent à l’esprit humain. In 1928, Klüver’s theory of form constants placed visual hallucinations into four broad categories. Whereas, as predicted by its author, the notion of form constants was virtually applicable to all entoptic figures, including synesthetic photisms, the very notion of entoptics was definitively extended. Cytowic has described and Carol Steen has represented what visual synesthetes actually see. The presence of these forms, as they have been classified by Klüver, is precisely one of the characteristics of the works of synesthetic painters. With the thesis of externalization, the field of Anthropology has shown that some cultures have adopted the constant forms perceived in the first stage of intoxication as patterns for their art. Physiological-mathematical models allow us to locate the origin of photism production in V1, and to explain these photisms’ morphogenesis. But, even today, an explanation of the neural pathways used to pass from different types of sensory triggers to the appearance of synesthetic photisms remains at the hypothesis stage. Synesthesia is a research topic that combines some of the most contemporary sciences, including genomics. Studies on synesthesia may just transform its status as that of a marginal phenomenon into that of an essential element in understanding the physiological system underlying the human mind. (shrink)