When a circular coin is rotated in depth, is there any sense in which it comes to resemble an ellipse? While this question is at the center of a rich and divided philosophical tradition (with some scholars answering affirmatively and some negatively), Morales et al. (2020, 2021) took an empirical approach, reporting 10 experiments whose results favor such perspectival similarity. Recently, Burge and Burge (2022) offered a vigorous critique of this work, objecting to its approach and conclusions on both philosophical (...) and empirical grounds. Here, we answer these objections on both fronts. We show that Burge and Burge’s critique rests on misunderstandings of Morales et al.’s claims; of the relation between the data and conclusions; and of the philosophical context in which the work appears. Specifically, Burge and Burge attribute to us a much stronger (and stranger) view than we hold, involving the introduction of “a new entity” located “in some intermediate position(s) between the distal shape and the retinal image.” We do not hold this view. Indeed, once properly understood, most of Burge and Burge’s objections favor Morales et al.’s claims rather than oppose them. Finally, we discuss several questions that remain unanswered, and reflect on a productive path forward on these issues of foundational scientific and philosophical interest. (shrink)

Our pains can be more or less intense, our mental imagery can be more or less vivid, our perceptual experiences can be more or less striking. These degrees of intensity of conscious experiences are all manifestations of a phenomenal property I call mental strength. In this article, I argue that mental strength is a domain-general phenomenal magnitude; in other words, it is a phenomenal quantity shared by all conscious experiences that explains their degree of felt intensity. Mental strength has been (...) largely overlooked in favor of mental states’ type, representational contents, domain-specific phenomenology, or processes such as attention. Considering mental strength in our reflections about the mind illuminates debates about the relation of representational contents and phenomenal character, and it also helps address questions about the structure and functions of consciousness. Mental strength provides a unifying construct to model what is shared in the phenomenology of different types of conscious experiences. (shrink)

In this chapter, we discuss a selection of current views of the neural correlates of consciousness (NCC). We focus on the different predictions they make, in particular with respect to the role of prefrontal cortex (PFC) during visual experiences, which is an area of critical interest and some source of contention. Our discussion of these views focuses on the level of functional anatomy, rather than at the neuronal circuitry level. We take this approach because we currently understand more about experimental (...) evidence at this coarse level and because these results are appropriate for arbitrating between current theoretical frameworks. We discuss the Two-Visual-Systems Hypothesis (Milner & Goodale 1995; 2006), Local Recurrency (Lamme 2010; Lamme 2006), Higher Order (Lau 2008; Lau & Rosenthal 2011) and Global Workspace theories (Baars 1997; Baars 2005; Dehaene & Naccache 2001; Dehaene 2014). Despite the apparent stark differences between conscious and unconscious perceptual processing, available evidence suggests that their neural substrates must be largely shared. This indicates that the difference in neural activity between conscious and unconscious perceptual processing is likely to be subtle and highly specialized. We argue that current experimental evidence about the involvement of specific activity in prefrontal cortex supports the higher order neural theory of consciousness. In consequence, imaging techniques that focus only on marked differences between conscious and unconscious level of activity are likely to be insensitive to the relevant neural activity patterns that underlie conscious experiences. Finally, it follows from the evidence we discuss that the functional advantages of conscious over unconscious perceptual processing may be more limited than commonly thought. (shrink)

Arguably the most foundational principle in perception research is that our experience of the world goes beyond the retinal image; we perceive the distal environment itself, not the proximal stimulation it causes. Shape may be the paradigm case of such “unconscious inference”: When a coin is rotated in depth, we infer the circular object it truly is, discarding the perspectival ellipse projected on our eyes. But is this really the fate of such perspectival shapes? Or does a tilted coin retain (...) an elliptical appearance even when we know it’s circular? This question has generated heated debate from Locke and Hume to the present; but whereas extant arguments rely primarily on introspection, this problem is also open to empirical test. If tilted coins bear a representational similarity to elliptical objects, then a circular coin should, when rotated, impair search for a distal ellipse. Here, nine experiments demonstrate that this is so, suggesting that perspectival shapes persist in the mind far longer than traditionally assumed. Subjects saw search arrays of three-dimensional “coins,” and simply had to locate a distally elliptical coin. Surprisingly, rotated circular coins slowed search for elliptical targets, even when subjects clearly knew the rotated coins were circular. This pattern arose with static and dynamic cues, couldn’t be explained by strategic responding or unfamiliarity, generalized across shape classes, and occurred even with sustained viewing. Finally, these effects extended beyond artificial displays to real-world objects viewed in naturalistic, full-cue conditions. We conclude that objects have a remarkably persistent dual character: their objective shape “out there,” and their perspectival shape “from here.”. (shrink)

Introspection is a fundamental part of our mental lives. Nevertheless, its reliability and its underlying cognitive architecture have been widely disputed. Here, I propose a principled way to model introspection. By using time-tested principles from signal detection theory (SDT) and extrapolating them from perception to introspection, I offer a new framework for an introspective signal detection theory (iSDT). In SDT, the reliability of perceptual judgments is a function of the strength of an internal perceptual response (signal- to-noise ratio) which is, (...) to a large extent, driven by the intensity of the stimulus. In parallel to perception, iSDT models the reliability of introspective judgments as a function of the strength of an internal introspective response (signal-to-noise ratio) which is, to a large extent, driven by the intensity of conscious experiences. Thus, by modelling introspection after perception, iSDT can calibrate introspection’s reliability across a whole range of contexts. iSDT offers a novel, illuminating way of thinking about introspection and the cognitive processes that support it. (shrink)

Metacognition is the capacity to evaluate the success of one's own cognitive processes in various domains; for example, memory and perception. It remains controversial whether metacognition relies on a domain-general resource that is applied to different tasks or if self-evaluative processes are domain specific. Here, we investigated this issue directly by examining the neural substrates engaged when metacognitive judgments were made by human participants of both sexes during perceptual and memory tasks matched for stimulus and performance characteristics. By comparing patterns (...) of fMRI activity while subjects evaluated their performance, we revealed both domain-specific and domain-general metacognitive representations. Multivoxel activity patterns in anterior prefrontal cortex predicted levels of confidence in a domain-specific fashion, whereas domain-general signals predicting confidence and accuracy were found in a widespread network in the frontal and posterior midline. The demonstration of domain-specific metacognitive representations suggests the presence of a content-rich mechanism available to introspection and cognitive control. (shrink)

Studying the neural correlates of conscious awareness depends on a reliable comparison between activations associated with awareness and unawareness. One particularly difficult confound to remove is task performance capacity, i.e. the difference in performance between the conditions of interest. While ideally task performance capacity should be matched across different conditions, this is difficult to achieve experimentally. However, differences in performance could theoretically be corrected for mathematically. One such proposal is found in a recent paper by Lamy, Salti and Bar-Haim [Lamy (...) D, Salti M, Bar-Haim Y. Neural correlates of subjective awareness and unconscious processing: an ERP study. J Cognitive Neurosci 2009,21:1435-46], who put forward a corrective method for an electroencephalography experiment. We argue that their analysis is essentially grounded in a version of High Threshold Theory, which has been shown to be inferior in general to Signal Detection Theory. We show through a series of computer simulations that their correction method only partially removes the influence of perfor- mance capacity, which can yield misleading results. We present a mathematical correction method based on Signal Detection Theory that is theoretically capable of removing performance capacity confounds. We discuss the limitations of mathemati- cally correcting for performance capacity confounds in imaging studies and its impact for theories about consciousness. (shrink)

Consciousness and confidence seem intimately related. Accordingly, some researchers use confidence ratings as a measure of, or proxy for, consciousness. Rosenthal discusses the potential connections between the two, and rejects confidence as a valid measure of consciousness. He argues that there are better alternatives to get at conscious experiences such as direct subjective reports of awareness (i.e. subjects’ reports of perceiving something or of the degree of visibility of a stimulus). In this chapter, we offer a different perspective. Confidence ratings (...) in general, and metacognitive measures in particular, may offer important advantages over subjective ratings. The arguments we offer here are supported by empirical, practical and socio-strategic considerations. However, we do not suggest consciousness and confidence are interchangeable. We recognize the limitations of confidence ratings in some experimental designs and for some research questions. Nevertheless, we also address a potential conceptual link between consciousness and confidence that stems from Rosenthal’s very own work on mental quality space theory. (shrink)

The contributors to this volume argue that we can, and they offer a new way: the "participatory turn," which proposes that individuals and communities have an ...

Dynamic Theodicy (DT) is a broad concept we bring up to designate some modern Philosophical Theology attempts to reconcile the necessary and perfect existence of God with the contingent characteristics of human life. In this paper we analyze such approaches and discuss how they have become incomprehensible because the metaphysical assumptions implicit in these explanations have lost their intrinsic relation to the natural human desire for salvation. In the first part we show Charles Hartshorne's DT-model, arising from the modal logic (...) of perfection, and the modern rational problems of this position in making infinite-necessary Being (God) and finite-contingent being (human) compatible. We note that at the heart of the contradictions in this DT account is a dialectical mode of thinking that makes it difficult to find a correct solution to this dichotomy, and to assume a human desire that could be considered related to lifelong goals. In the second part, supported by the proposal of Hans Urs von Balthasar's DT, we develop the concepts of bodily vulnerability, corporeal intentionality, and natural desire for salvation, which come from an Aristotelian-Thomistic thought. This theory is established in order to build an argument, following Alasdair MacIntyre’s ethical framework, on how to make possible the recovery of a metaphysical and anthropological desire that transcends natural aging and goes beyond death. We conclude that both human dependence and the virtues that arise naturally when human beings decide to seek the good of their transcendent condition, make it possible to recover the natural desire for salvation through divine and human love. (shrink)

This volume explores the relationship between rationality and happiness from ancient Greek philosophy to early Latin medieval philosophy. What connection is there between human rationality and happiness? This issue was uppermost in the minds of the Ancient Greek philosophers and continued to be of importance during the entire early medieval period. Starting with theSocrates of Plato's early dialogues, who is regarded as having initiated the eudaimonistic ethical tradition, the present volume looks at Plato, Aristotle, the Skeptics, Seneca [Stoicism], Epicurus, Plotinus (...) [neo-Platonism], Augustine, Boethius, Anselm, and ends with Abelard, the final major figure in early medieval philosophy. Special efforts are made to reveal and trace the continuity and development of the views on rationality and happiness among these major thinkers within this period. The book's approach is historical, but the topics it treats are relevant to many discussions pursued in contemporary philosophical circles. Specifically, the book aims to make two major contributions to the ongoing development of virtue ethics. First, contemporary virtue ethics often draws distinctions between ancient Greek ethics and modern moral philosophy [mainly utilitarianism and Kantianism], and seeks to model ethics on ancient ethics. In doing so, however, contemporary virtue ethics often ignores the transition from Greek ethics to the early Latin medieval tradition. Second, contemporary virtue-based ethics, in its efforts to seek insights from ancient ethics, centers on virtue. In contrast, in ancient and medieval ethics, virtue is pursued for the sake of happiness [eudaimonia], and virtue is conceived as excellence of rationality. Hence, the relationship between rationality and happiness provides the framework for ethical inquiry within which the discussion of virtue takes place. Contributors: JULIA ANNAS, RICHARD BETT, JORGE J.E. GRACIA, BRAD INWOOD, WILLIAM MANN, JOHN MARENBON, GARETH B. MATTHEWS, MARK L. McPHERRAN, DONALD MORRISON, C.C.W. TAYLOR, JONATHAN SANFORD, JIYUAN YU. Jiyuan Yu is Assistant Professor of Ancient Philosophy at the State University of New York at Buffalo. Jorge J. E. Gracia is Samuel P. Capen Chair and SUNY Distinguised Professor in the Departments of Philosophy and Comparative Literature at the State University of New York at Buffalo. (shrink)

To find the neural substrates of consciousness, researchers compare subjects’ neural activity when they are aware of stimuli against neural activity when they are not aware. Ideally, to guarantee that the neural substrates of consciousness—and nothing but the neural substrates of consciousness—are isolated, the only difference between these two contrast conditions should be conscious awareness. Nevertheless, in practice, it is quite challenging to eliminate confounds and irrelevant differences between conscious and unconscious conditions. In particular, there is an often-neglected confound that (...) is crucial to eliminate from neuroimaging studies: task performance. Unless subjects’ task performance is matched (and hence perceptual signal processing is matched), researchers risk finding the neural correlates of perception, rather than conscious perception. Here, we discuss the theoretical motivations for the performance matching framework and review empirical demonstrations of, and theoretical inferences derived from, obtaining differences in consciousness while controlling for task performance. We summarize signal detection theoretic modeling frameworks that explain how it is that we can derive performance-matched differences in consciousness without the effect being trivially driven by differences in criterion setting, and also provide principles for designing experimental paradigms that yield performance-matched differences in awareness. Finally, we address potential technical and theoretical issues that stem from matching performance across conditions of awareness, and we introduce the notion of “triangulation” for designing comprehensive experimental sets that can better reveal the neural substrates of consciousness. (shrink)

This paper uses tools of philosophical analysis critically to examine accounts of the nature of racism that have recently been offered by writers including existentialist philosopher Lewis Gordon, conservative theorist Dinesh D'Souza, and sociologists Michael Omi and Howard Winant. These approaches, which conceive of racism either as a bad-faith choice to believe, a doctrine, or as a type of 'social formation', are found wanting for a variety of reasons, especially that they cannot comprehend some forms of racism. I propose an (...) account that conceives racism chiefly as a motivational/volitional matter, in short, as a form of moral viciousness. I show how this approach offers a unified account that comprises inter alia individual and institutional racism, expressed and unexpressed racism. I point out advantages that my view has over Thomas Schmid's somewhat similar suggestion, and use the account to examine a number of claims made about racism by H. L. Gates, Jr, Elizabeth Young-Bruehl, Gertrude Ezorsky, and others. Finally, I defend this approach from the general criticism that Benjamin DeMott has levelled against any effort so to understand racism. Key Words: Benjamin DeMott • Dinesh D'Souza • existentialism • Lewis Gordon • moral concepts • Michael Omi • racism • social formation • Howard Winant. (shrink)

A nonuniform superconducting loop poses a challenge to statistical mechanics: assuming thermal equilibrium and applying the accepted rules, we obtain that the heat flow does not vanish.

In the seventh and most recent edition of their classic book, Principles of Biomedical Ethics, Tom Beauchamp and James Childress define a virtue as a character trait that is “socially valuable and reliably present” and a moral virtue as such a trait that is also both “dispositional” and “morally valuable”. The virtues that they single out as “focal” within biomedical ethics are compassion, discernment, trustworthiness, integrity, and conscientiousness. Not all is well in their treatment of virtue. Beauchamp and Childress seem (...) to worry that an ethical theory in which virtues are fundamental will neglect duties, rights, and societal needs. Further, they insist that there is no reason to think that, within ethical theory, one family of ethical concepts is the most important, nor that one theoretical approach is correct, or even superior to others. I will try to show, that there are strong reasons to see language, concepts, and matters of virtue as fundamental within normative ethical theory, both generally and in such specialized subareas as medical ethics. These reasons reveal themselves when we analyze concepts at the core of the alternative approaches to theorizing ethics that Beauchamp and Childress identify. (shrink)

Darwin’s theory is often illustrated with depictions of different finch beaks or with lined-up skeletons displaying subtle bone-structure changes throughout evolutionary history. In The Deep Histor...

Los fenómenos urbanos son modos concretos de reproducción social y, como toda reproducción, tienen un carácter histórico. En este artículo se defenderá que es posible identificar tres grandes paradigmas históricos en el desarrollo urbano del Occidente moderno —la ciudad, la metrópolis y la postmetrópolis— y que su forma de gobernanza coincide con los tres tipos de poder identificados por Foucault: el soberano, el disciplinar y el biopolítico. Además, se analizará cómo cada una de estas tres dobles configuraciones de la reproducción (...) social genera unos puntos neurálgicos, cuya manipulación produce un impacto sobre el sistema mucho mayor que cualquier otra posible acción, tanto si está orientada al dominio institucional del poder constituido como a la resistencia frente al mismo. El presente trabajo aborda la lógica de funcionamiento de estos tres modelos urbanos, identificando sus respectivos centros neurálgicos como punto de partida desde el que es viable constituir el sujeto político antagónico más efectivo posible en cada uno de ellos. (shrink)

La investigaci n filos fica sobre el mundo tecnol gico constituye un verdadero imperativo tico de nuestro tiempo. el prop sito fundamental de este libro es contribuir a dicha tarea. Para ello, el autor se apoya en la exploraci n de las ideas de cinco pensadores que intentaron realizar un diagn stico y un pron stico global del mundo tecnol gico, y que advirtieron sobre la presencia de un riesgo mayor Para el futuro de una vida aut nticamente humana en (...) la tierra. (shrink)

In spite of his deep insights, Hegel fails to grasp the specific character of the war waged by the French Revolution and the Empire. His theory of limited warfare turns out to be a peculiar Sollen, but it is precisely this gap between rationality and reality what makes his classical model an appealing antithesis to postmodern violence. Keywords.

Social entrepreneurship is usually understood as an economic activity which focuses at social values, goals, and investments that generates surpluses for social entrepreneurs as individuals, groups, and startups who are working for the benefit of communities, instead of strictly focusing mainly at the financial profit, economic values, and the benefit generated for shareholders or owners. Social entrepreneurship combines the production of goods, services, and knowledge in order to achieve both social and economic goals and allow for solidarity building. From a (...) broader perspective, entities that are focused on social entrepreneurship are identified as parts of the social and solidarity economy. These are, for example, social enterprises, cooperatives, mutual organizations, self-help groups, charities, unions, fair trade companies, community enterprises, and time banks. Social innovation is a key element of social entrepreneurship. Social innovation is usually understood as new strategies, concepts, products, services, and organizational forms that allow for the satisfaction of needs. Such innovations are created in particular in the contact areas of various sectors of the social system. For example, these are spaces between the public sector, the private sector, and civil society. These innovations not only allow the solving of problems but also extend possibilities for public action. (shrink)

When visual attention is directed away from a stimulus, neural processing is weak and strength and precision of sensory data decreases. From a computational perspective, in such situations observers should give more weight to prior expectations in order to behave optimally during a discrimination task. Here we test a signal detection theoretic model that counter-intuitively predicts subjects will do just the opposite in a discrimination task with two stimuli, one attended and one unattended: when subjects are probed to discriminate the (...) unattended stimulus, they rely less on prior information about the probed stimulus’ identity. The model is in part inspired by recent findings that attention reduces trial-by-trial variability of the neuronal population response and that they use a common criterion for attended and unattended trials. In five different visual discrimination experiments, when attention was directed away from the target stimulus, subjects did not adjust their response bias in reaction to a change in stimulus presentation frequency despite being fully informed and despite the presence of performance feedback and monetary and social incentives. This indicates that subjects did not rely more on the priors under conditions of inattention as would be predicted by a Bayes-optimal observer model. These results inform and constrain future models of Bayesian inference in the human brain. (shrink)

Clearly in contrast to the sociosymbolic approaches that underlie the positions of Butler or Derrida, this article delves into a materialist and machinic reading of the ontology of Deleuze and Guattari. This ontology is the basis of a posthumanist conception that allows to join political philosophy, technology and biology understood as complex rhizomatic systems. From this point of view, we propose to construct an antagonistic posthumanist politics that is an alternative to the pluriversal ethics defended by Braidotti. We believe that (...) the latter maintains an excessively liberal position that prioritizes inclusion as a new form of consensus in the face of conflict. (shrink)

This paper presents a reading of Metaphysics Z.10–11 according to which both chapters outline two main definienda: forms and material substances or compounds, each of which is governed by its own peculiar constraints. Forms include formal parts alone; furthermore, they are the main definable items and enjoy the strictest possible unity. However, this does not preclude Aristotle from upgrading material compounds to the status of definable items in their own right. Z.10 explains this contention by making the compound’s sensible functional (...) matter dependent on its form. This dependence affords the resulting compound an unusually tight form-matter relationship, strong enough to ensure its definability, despite falling short of the highest kind of unity that only forms display. (shrink)

This article proposes a guideline to develop an ontology of software. The first section gives a brief introduction to the importance of such ontology as a possible conceptual grounding for the philosophy of software, philosophy of computing and philosophy of information. The second section presents the background of the scope of this article in terms of both a symbolic and materialistic approach to software. The third section deploys the basic guidelines with the expositions of the two dimensions of software: the (...) serial dimension and the structural dimension. The first dimension consists of three series, while the second in the exposition of the structure of any program. The fourth and last section will deal with a better understanding of what we can call the digital universe. (shrink)

Der Einblick in die Geschichte der Entgegensetzung von Gutem und Schlechtem vermittelt nicht nur die einzelnen Stationen der Auseinandersetzung mit diesem Problem, sondern erörtert es auch unter sachlichen Gesichtspunkten. Wenngleich jede Entgegensetzung einen den entgegenzustellenden Gliedern gemeinsamen Bezugspunkt fordert, lassen sich Gutes und Schlechtes weder einer gemeinsamen Gattung unterordnen, noch als Gattungen in irgendeinem Sinne begreifen. Trotzdem sind Gutes und Schlechtes einander entgegengesetzt. Dies zeigt, daß die Entgegensetzung nicht nur ,,eine Sache" des Denkens ist, sondern auch von der Seinsstruktur beider (...) Glieder abhängt. Diese Entgegensetzung ist zudem als eine Wesenszusammengehörigkeit zu deuten, die mit der Entgegensetzung von Sein und Nichts wesenhaft verknüpft ist. (shrink)

En las discusiones modernas sobre la posibilidad de las proposiciones sintéticas a priori, la teoría de la definición tiene una importancia capital, porque la mayoría de las teorías sostiene que los juicios analíticos están lógicamente implicados en una definición explícita (lo que restringe los enunciados de una definición completa y precisa a juicios de este tipo). Sin embargo, para Kant -el primer autor en señalar la distinción entre proposiciones analíticas y sintéticas-muchos juicios analíticos son obtenidos mediante análisis de conceptos que (...) no precisan ser determinados previamente por una definición. Por otro lado, para él no todo conocimiento a priori es analítico. La afirmación de que no todo juicio analítico se deriva de una definición y la posibilidad del conocimiento sintético a priori indican que Kant no consideraba, contrariamente a las teorías modernas sobre el juicio analítico, que la definición sea un fundamento esencial del conocimiento. In the modern discussions about possibility of synthetic a priori propositions, the theory of definition has a fundamental importance, because the most definition's theories hold that analytic judgments are involved by explicit definition (it limits sentences of complete and precise definition to this kind of judgments). However, for Kant -first author who pointed out the distinction between analytic and synthetic propositions-many analytic judgments are made by analysis of concepts which need not first be established by definition. Moreover, for him not all a priori knowledge is analytic. The statement that not all analytic judgment is derived from definition and possibility of synthetic a priori knowledge, indicates Kant didn't believe, contrary to modern theories about analytic judgment, the definition is an essential ground of knowledge. (shrink)

El objetivo de este artículo es desarrollar un conjunto de reflexiones teórico-epistemológicas en tomo al pensamiento complejo de Morin, que en definitiva sirvo como soporte para la proposición de una semiótico de la cultura en la cual se integren los principios fundamentales de este pensamiento y de sus implicancias conceptuales directas. Con este fin revisamos aquí el dispositivo teórico propuesto par Morin, para luego establecer los lineamientos metodológicos básicos o instancias analíticas sobre las cuales definir la semiótica de la cultura. (...) Finalmente podemos señalar que el presente trabajo representa un intento de sistematización de una batería conceptual transdisciplinaria cuya potencia gnoseológica hace posible optimizar metodologías de análisis como la semiótica sobre sistemas de significación específicos. (shrink)

John Ackrill argued that Aristotelian bodies are conceptually promiscuous, since they fail to exemplify the modal relations that are expected to hold between their matter and their form. Although “potentially alive”, organic bodies are bound to be ensouled, on pain of lacking the required potential; but to the extent that they are ensouled, they are already actually alive. It seems odd to claim that a body may lack what it cannot help having. This paper claims that the standard solution falls (...) short of the strong unity living beings display, given that nothing in them can be accidentally alive. An alternative proposal is advanced, based on two distinctions Aristotle draws in his philosophical lexicon: both matter and form have a claim to being called “nature”; formal nature may be found in its subject either in actuality or in potentiality. It is argued that the characterization of organic bodies as “potentially alive” conforms to, a pattern that helps explain the specific way in which bodies share in the organisms’ life. Two possible instances of are finally considered by way of illustration. (shrink)

And how are the answers to these questions affected by the Black and Latino experience in the United States"-From the Preface This collection of new essays explores the relation between race and ethnicity and its social and political ...

This paper introduces the theory QST of quasets as a formal basis for the Nmatrices. The main aim is to construct a system of Nmatrices by substituting standard sets by quasets. Since QST is a conservative extension of ZFA (the Zermelo-Fraenkel set theory with Atoms), it is possible to obtain generalized Nmatrices (Q-Nmatrices). Since the original formulation of QST is not completely adequate for the developments we advance here, some possible amendments to the theory are also considered. One of the (...) most interesting traits of such an extension is the existence of complementary quasets which admit elements with undetermined membership. Such elements can be interpreted as quantum systems in superposed states. We also present a relationship of QST with the theory of Rough Sets RST, which grants the existence of models for SQT formed by rough sets. Some consequences of the given formalism for the relation of logical consequence are also analysed. (shrink)

Investigamos, neste texto, as concepções de informação propostas por Peirce (1839-1914) e Bateson (1904-1980) e suas implicações no processo sistêmico e evolucionário da mente, contextualizando-as no antropoceno. Destacamos as semelhanças entre as abordagens dos dois autores a partir do papel exercido pela informação na dinâmica constitutiva dos processos mentais, bem como tais abordagens podem servir como uma bússola para redirecionarmos nossa visão fragmentada de mundo e minimizarmos os impactos da ação humana na natureza, amenizando as dificuldades da era do antropoceno. (...) Diferentemente da abordagem determinista, mecanicista e reducionista nos estudos da causalidade que rege as relações, mostramos que Peirce e Bateson inserem a informação como elemento principal que propicia a emergência da comunicação, do acaso, da organização e da continuidade dos sistemas vivos. Nossa hipótese é a de que para ambos os autores, a mente é imanente e coextensiva à natureza, cuja complexidade extrapola os limites investigativos da ciência tradicional, lançando luz aos debates sobre o antropoceno, os quais visam investigar, compreender e propor ações para amenizar os impactos da conduta humana na natureza. (shrink)

A recent fMRI study by Webb et al. (Cortical networks involved in visual awareness independent of visual attention, Proc Natl Acad Sci U S A 2016;113:13923–28) proposes a new method for finding the neural correlates of awareness by matching atten- tion across awareness conditions. The experimental design, however, seems at odds with known features of attention. We highlight logical and methodological points that are critical when trying to disentangle attention and awareness.