Information is a central notion for cognitive sciences and neurosciences, but there is no agreement on what it means for a cognitive system to acquire information about its surroundings. In this paper, we approximate three influential views on information: the one at play in ecological psychology, which is sometimes called information for action; the notion of information as covariance as developed by some enactivists, and the idea of information as minimization of uncertainty as presented by Shannon. Our main thesis is (...) that information for action can be construed as covariant information, and that learning to perceive covariant information is a matter of minimizing uncertainty through skilled performance. We argue that the agent’s cognitive system conveys information for acting in an environment by minimizing uncertainty about how to achieve her intended goals in that environment. We conclude by reviewing empirical findings that support our view and by showing how direct learning, seen as instance of ecological rationality at work, is how mere possibilities for action are turned into embodied know-how. Finally, we indicate the affinity between direct learning and sense-making activity. (shrink)

The extended mind thesis claims that at least some cognitive processes extend beyond the organism’s brain in that they are constituted by the organism’s actions on its surrounding environment. A more radical move would be to claim that social actions performed by the organism could at least constitute some of its mental processes. This can be called the socially extended mind thesis. Based on the notion of affordance as developed in the ecological psychology tradition, I defend the position that perception (...) extends to the environment. Then I will expand the notion of affordance to encompass social affordances. Thus, perception can in some situations also be socially extended. (shrink)

In this paper we advocate the thesis that qualia are tropes (or qualitons), and not (universal) properties. The main advantage of the thesis is that we can accept both the Wittgensteinian and Sellarsian assault on the given and the claim that only subjective and private states can do justice to the qualitative character of experience. We hint that if we take qualia to be tropes, we dissolve the problem of inverted qualia. We develop an account of sensory concept acquisition that (...) takes the presence of qualia as an enabling condition for learning. We argue that qualia taken to be qualitons are part of our mechanism of sensory concept acquisition. (shrink)

In Fact, Fiction and Forecast, Nelson Goodman claims that the problem of justifying induction is not something over and above the problem of describing valid induction. Such claim, besides suggesting his commitment to the collapse of the distinction between the context of description and the context of justification, seems to open the possibility that the new riddle of induction could be addressed empirically. Discoveries about psychological preferences for projecting certain classes of objects could function as a criterion for determining which (...) predicates are after all projectible. In this paper, I argue that Goodman's claim must be construed within his project for constructional definitions, which is methodologically oriented by reflective equilibrium. The description of inductive practice is committed to the articulation of the extension of the class selected by the predicate ‘valid induction’. The mutual adjustment between theoretical considerations and inductive practice involved in the proposal of a definition of ‘valid induction’ must preserve that practice as much as possible, there is no way to get rid of entrenchment. Empirical discoveries about the psychological mechanism that underlies projections may help that adjustment but they cannot substitute the role played by the entrenchment of predicates. (shrink)

The foundationalist needs to deal with two fundamental problems: (i) to explain how a justificator grants justification without itself need justification and (ii) to determine the justificator’s epistemic status. Burdzinski (Burdzinski 2007), following Sellars and Bonjour, argues that the perceptive experience could not be a response to the first problem, because if its content was not propositional it would not grant justification and if its content was propositional it would grant justification and would require justification. My proposal is that perceptual (...) experience justifies in virtue of its representational nature. The act of taking the content of a perception by its face value is justified until there is a reason to the contrary, ie, this act is prima facie justified. This forces us to answer the second problem by saying that the basic justificator is not infallible. This falibilist response dislike the skeptic, but it is the best foundationalist answer to epistemic regress. (shrink)

The extended mind thesis claims that some mental states and cognitive processes extend onto the environment. Items external to the organism or exploratory actions may constitute in part mental states and cognitive processes. In Clark and Chalmers’ original paper, ‘The Extended Mind’, this thesis receives support from the parity principle and from the active externalism. In their paper, more emphasis is given to the parity principle, which is presented as neutral regarding the nature of cognition. It would be advantageous to (...) maintain that extended mental states and processes do not require a reform of our pre-theoretical view of cognition. In the present paper, I submit that we should give more emphasis on the active externalism, which, I argue, is not neutral regarding the nature of cognition. Cognition is viewed as successful adaptation to a specific task. Although this move may seem at first disadvantageous, it is necessary for the correct understanding and justification of Otto case as an example of extended mental state. Additionally, the parity principle cannot handle Weiskopf’s criticism that information registered in Otto’s notebook is not responsive to reasons. In order to address this criticism, we need to appeal to active externalism and its corresponding view of cognition. (shrink)

In his book, "Perception as a Capacity for Knowledge" (2011), John McDowell advocates that the warrant provided by perception is infallible. For such, it is necessary to understand the role reason plays in the constitution of genuine perceptual states. Based on reason, we situate these states in the logical space of reasoning. So, we not only make the perceptual state into an episode of knowledge, but we also acquire knowledge of how we arrived to that knowledge. McDowell argues that this (...) condition for knowledge - the possession of the capacity to situate a perceptual state in the logical space of reasoning - does not commit him to intellectualism. In this paper, I defend that McDowell's internalism is not entirely exempt from intellectualism, and that internalism is more reasonable not only without intellectualism, but also without reflexivity. (shrink)

In this paper, I try to articulate and clarify the role of the epistemic authority of experts in Kuhn’s explanation for the transition process between rival paradigms in the scientific revolutionary period. If science progresses, that process should contribute to the attainment of the cognitive aim of science, namely, the articulation of paradigms increasingly successful at the resolution of problems. It is hard to see that process as rational and as attaining the cognitive aim of science without the consideration of (...) epistemic authority.The mistake of Kuhn was to emphasize and clarify insufficiently the role of the epistemic authority of experts; his critics failed for ignoring it altogether. (shrink)

The argument from illusion/hallucination have been proposed many times as supporting the strong conclusion that we are always perceiving directly sense-data. In Sense & Sensibilia, Austin argues that this argument is based on a “mass of seductive (mainly verbal) fallacies”. In this paper, I argue that Austin's argumentative moves to deconstruct the argument from illusion is better understood if they are seen as due to his implicit commitment to some disjunctivist conception of perception. His considerations should be taken as a (...) depth discussion about how to conceive perception. If we conceive the perceptual capacity disjunctively, even the weaker conclusion that we sometimes perceive sense-data does not hold. In response to Austin, Ayer claimed that the strong conclusion of the argument from illusion could be sustained by the method of the possibility of error. I argue that this method alone does not sustain that conclusion and the controversy turns back to the conflict between different conceptions of perception. The argument from illusion is philosophically interesting by putting in evidence the problem of how the perceptual capacity should be articulated and conceived. Although matters of fact are relevant to this question, they alone do not decide it. (shrink)

Is ruling out the possibility that one is dreaming a requirement for a knowledge claim? In “Philosophical Scepticism and Everyday Life” (1984), Barry Stroud defends that it is. In “Others Minds” (1970), John Austin says it is not. In his defense, Stroud appeals to a conception of objectivity deeply rooted in us and with which our concept of knowledge is intertwined. Austin appeals to a detailed account of our scientific and everyday practices of knowledge attribution. Stroud responds that what Austin (...) says about those practices is correct in relation to the appropriateness of making knowledge claims, but that the skeptic is interested in the truth of those claims. In this paper, we argue that Stroud’s defense of the alleged requirement smuggles in a commitment to a kind of internalism, which asserts that the perceptual justification available to us can be characterized independently of the circumstances in which we find ourselves. In our reading of Austin, especially of Sense & Sensibilia, he rejects that kind of internalism by an implicit commitment to what is called today a “disjunctive” view of perception. Austin says that objectivity is an aspect of knowledge, and his disjunctivism is part of an explanation of why the alleged requirement is not necessary for a knowledge claim. Since both Stroud and Austin are committed to the objectivity of knowledge, Stroud may ask which view of perceptual knowledge is correct, whether the internalist or the disjunctive. We argue that by paying closer attention to what Austin says about our practices of knowledge attribution, one can see more clearly that it is grounded not only on a conception of objectivity, but also on a conception of ourselves as information agents, a conception that is as deeply rooted as that of the objectivity of knowledge. This gives us moral and practical reasons to favor the disjunctive view of perception. (shrink)

The authors of *Linguistic Bodies* appeal to shared know-how to explain the social and participatory interactions upon which linguistic skills and agency rest. However, some issues lurk around the notion of shared know-how and require attention and clarification. In particular, one issue concerns the agent behind the shared know-how, a second one concerns whether shared know-how can be reducible to individual know-how or not. In this paper, I sustain that there is no single answer to the first issue; depending on (...) the case, shared know-how can belong to the participants of a social activity or to the system the participants bring forth together. In relation to the second issue, I sustain, following the authors, a non-reductive account of shared know-how. I also suggest that responsiveness to others, which is a fundamental element of shared know-how, can be extended by perceptual learning. (shrink)

In this paper we put forward the thesis that qualia are tropes (or qualitons), and not (universal) properties. Further, we maintain that Wittgenstein hints in this direction. We also find in Wittgenstein elements of an account of language acquisition that takes the presence of qualia as an enabling condition. We conclude by pointing out some difficulties of this view.

Goodman sustentou que o ajuste mútuo entre inferências indutivas particulares e princípios indutivos constitui a única justificação necessária para ambos. Porém, a sua caracterização desse ajuste, posteriormente denominado de “equilíbrio reflexivo”, foi superficial. Isso levantou dúvida sobre a sua adequação. Neste artigo, argumento que o equilíbrio reflexivo, corretamente caracterizado, fornece a única justificação necessária e a melhor que podemos dar para a prática indutiva.

In this paper I claim that perceptual discriminatory skills rely on a suitable type of environment as an enabling condition for their exercise. This is because of the constitutive connection between environment and perceptual discriminatory skills, inasmuch as such connection is construed from an ecological approach. The exercise of a discriminatory skill yields knowledge of affordances of objects, properties, or events in the surrounding environment. This is practical knowledge in the first-person perspective. An organism learns to perceive an object by (...) becoming sensitized to its affordances. I call this position ecological disjunctivism. A corollary of this position is that a case of perception and its corresponding case of hallucination—which is similar to the former only in some respects—are different in nature. I show then how the distinguishability problem is addressed by ecological disjunctivism. (shrink)

The problem of rational prediction, launched by Wesley Salmon, is without doubt the Achilles heel of the critical method defended by Popper. In this paper, I assess the response given both by Popper and by the popperian Alan Musgrave to this problem. Both responses are inadequate and thus the conclusion of Salmon is reinforced: without appeal to induction, there is no way to make of the practical prediction a rational action. Furthermore, the critical method needs to be vindicated if one (...) pretends that its application be suitable for the preference of hypothesis. I argue that the nature of this vindication is such that it may be applied also to induction. Thus, to be a popperian is a good reason also to be an inductivist. (shrink)

In this paper, I defend an account of how perceptual experience can bear rational relation to our empirical thought. In the first part, I elaborate two claims that are central for the justificational role of perceptual experience, namely, the claim that perception and belief share the same kind of content, and the claim that perception is independent from belief. At first sight, these claims seem not to be compatible, since the first one seems to require the truth of content conceptualism, (...) while the second one seems to require its falsity. In the second part, based on Alva Noë's actionist theory of perception, I argue in favor of a less intellectualist interpretation of the first claim, uncommitted to content conceptualism, and then I show how it can be reconciled with the second claim. Finally, I explain how perception holds rational relationships with our empirical thought through the exercise of observational concepts. These concepts link what I propose to call 'space of actions' to the logical space of reasons. (shrink)

Neste texto, discuto a interpretação defendida por Moyal-Sharrock, segundo a qual as proposições eixo são maneiras de agir com o objetivo de oferecer uma proposta sobre como compreendê-las. Sustento que a posição de Moyal-Sharrock deixa algumas lacunas, porque não explica a origem das nossas certezas fundamentais. A sua leitura também carece de recursos para responder ao problema da demarcação, uma vez que não é claro como distinguir maneiras de agir que podem legitimamente cumprir o papel de fundamento não fundamentado das (...) que não podem. Sem uma resposta para esse problema, a ameaça relativista é séria. Proponho, então, que as proposições eixo são maneiras de agir constitutivas de habilidades. Desenvolvo também uma abordagem ecológica das habilidades, a qual me possibilita explicar por que habilidades são embebidas-de-realidade e, por conseguinte, por que as maneiras de agir que as constituem são fundamentos não fundamentados legítimos. Com base nessa abordagem, ofereço uma resposta para o problema da demarcação que afasta a ameaça relativista. (shrink)

Neste artigo, mapeio o terreno da discussão em torno das teorias da conspiração, destacando o problema de como defini-las, os fatores que levam à crença nas teorias da conspiração, os seus potenciais prejuízos e como devemos reagir a elas. Defendo que devemos avaliar as consequências da crença em uma teoria da conspiração para determinar se ela deve ser levada a serio ou não. Em bloco, as teorias da conspiração ameaçam a capacidade coletiva de produção de conhecimento e devemos nos preocupar (...) com a sua difusão. (shrink)

In this paper, I present the discussion between Ayer and Austin about whether sentences or utterances can be incorrigible and I argue in favor of Austin position. I defend Austin against objections from Ayer presented after the publication of Sense & Sensibilia. Unlike what was sustained by Ayer, experiential sentences and material object sentences are not epistemically asymmetrical. A material object sentence can be incorrigible if uttered in appropriated circumstances, and an experiential sentence can be corrigible if uttered in unappropriated (...) circumstances. Relying on Austin position, I argue that self-knowledge does not have any epistemic privilege in relation to knowledge of the external world. These kinds of knowledge equally depend on objective circumstances of the utterance situation. (shrink)

Tomamos como certo que os nossos sentidos nos colocam em contato com o ambiente ao nosso redor. Enquanto caminhamos em uma rua, vemos obstáculos que temos de contornar ou remover. Mesmo de costas, podemos ouvir a bicicleta que se aproxima e dar passagem. Em suma, por meio de experiências perceptivas (visuais, auditivas, olfativas etc.), ficamos conscientes de objetos ou eventos que estejam ocorrendo ao nosso redor. Além disso, com base no que percebemos, podemos formar e manter crenças acerca do ambiente (...) e, assim, adquirir conhecimento perceptivo acerca do mundo. A importância desse conhecimento acerca do que está ao nosso alcance perceptivo é inestimável para a nossa sobrevivência e a condução de nossos projetos cotidianos. Contudo, podemos querer saber (1) se de fato temos acesso ao mundo físico circundante por meio das nossas experiências perceptivas, e (2) se e como essas experiências justificam as nossas crenças acerca do que percebemos. Esses problemas são centrais para a epistemologia da percepção, embora não sejam os únicos. Nessa entrada, abordaremos esses dois problemas. (shrink)

A tese da mente estendida alega que ao menos alguns processos cognitivos se estendem para além do cérebro do organismo no sentido de que eles são constituídos por ações realizadas por esse organismo no ambiente ao seu redor. Um movimento mais radical seria alegar que ações sociais realizadas pelo organismo poderiam pelo menos constituir alguns dos seus processos cognitivos. Isso pode ser chamando de tese da mente socialmente estendida. Baseando-me na noção de affordance tal como ela foi desenvolvida na tradição (...) da psicologia ecológica, eu defendo que a percepção se estende ao meio ambiente. Então, apoiado no fenômeno da atenção conjunta, eu estendo a noção de affordance para encorporar affordances sociais. Assim, a percepção pode, em algumas situações, ser também estendida socialmente. (shrink)

Há pelo menos três modos pelos quais o debate sobre a conduta doxástica se relaciona com a ética. O primeiro e menos contencioso assinala que o ato de crer, analogamente às ações morais, responde a um tipo de normatividade, não necessariamente moral. Por exemplo, as normas para o ato de crer podem ser puramente epistêmicas. Nesse caso, essas normas diriam respeito a como o agente deve visar ou buscar a verdade. O segundo modo como o debate da ética da crença (...) se relaciona com a ética diz respeito à fundamentação das normas para crer. A ideia é que a adoção dessas normas se fundamenta com base em razões morais e sociais. Por fim, o modo mais substancial consiste em sustentar que o ato de crer, ao menos em alguns casos, é em parte um fenômeno essencialmente moral e que, portanto, razões morais incidem diretamente sobre a legitimidade da crença. Por razões morais, alguém poderia ser recriminado por sustentar uma crença ainda que tivesse evidência favorável para ela. Neste verbete, tangenciando o clássico debate entre Clifford e William James e reações mais contemporâneas ao debate, apresentaremos e discutiremos cada um desses aspectos da ética da crença. (shrink)

Resumo Neste artigo, procura-se analisar os fatores envolvidos na determinação da natureza substancial do organismo vivo, em Aristóteles. Tais fatores seriam, por um lado, a forte unidade e coesão interna composicional e, por outro, o elevado caráter de independência quanto às propriedades essenciais ou formais, relativamente às propriedades dos componentes materiais, por meio dos quais o organismo vivo vem a ser formado, ou com referência aos outros tipos de particularidades de seres. Com esta análise, pretende-se mostrar, ao mesmo tempo, que (...) a unidade do composto orgânico-animado, de um modo geral, é constituída por um complexo arranjo de camadas estratificadas, no qual as camadas ou os tipos de composições materiais apresentam, entre si, um forte grau de interdependência. Tal interdependência entre as partes materiais, que formam uma rede composicional complexa e bem-articulada, faz com que as propriedades essenciais ou formais do todo orgânico se diferenciem sobremaneira das propriedades essenciais dos tipos de componentes que integram esse todo, caracterizando, assim, o caráter substancial da composição orgânica.In this paper, I will try to analyze the factors involved in determining the substantial nature of the living organism in Aristotle. Such factors would be, on the one hand, the strong unity and compositional internal cohesion and, on the other hand, the high character of independence as regards the essential or formal properties, relative to the proper properties of the material components through which the living organism comes to be formed, or relative to other types of particularities of beings. With this analysis, it is intended at the same time to show that, in a general way, the unity of the organic-animate compound is constituted by a complex arrangement of stratified layers, in which the layers or types of material compositions have a strong degree of interdependence among themselves. Such interdependence between the material parts, which form a complex and well-articulated compositional network, makes the essential or formal properties of the organic whole very different from the essential properties of the types of components that make up the whole, thus characterizing the substantial character of organic composition. (shrink)

One of the most pressing questions concerning singular demonstrative mental contents is what makes their content singular: that is to say, what makes it the case that individual objects are the representata of these mental states. Many philosophers have required sophisticated intellectual capacities for singular content to be possible, such as the possession of an elaborate scheme of space and time. A more recent reaction to this strategy proposes to account for singular content solely on the basis of empirical models (...) of visual processing. We believe both sides make good points, and offer an intermediate way of looking into singular content. Our suggestion is that singular content may be traced to psychological capacities to form flexible, abstract representations in the prefrontal cortex. This allows them to be sustained for increasingly longer periods of time and extrapolated beyond the context of perception, thus going beyond lowlevel sensory representations while also falling short of more sophisticated intellectual abilities. (shrink)

Cognitive sciences as an interdisciplinary field, involving scientific disciplines (such as computer science, linguistics, psychology, neuroscience, economics, etc.), philosophical disciplines (philosophy of language, philosophy of mind, analytic philosophy, etc.) and engineering (notably knowledge engineering), have a vast theoretical and practical content, some even conflicting. In this interdisciplinary context and on computational modeling, ontologies play a crucial role in communication between disciplines and also in a process of innovation of theories, models and experiments in cognitive sciences. We propose a model for (...) this process here. An ontological commitment is advocated as the framework of a scientific realism, which leads computational modeling to search for more realistic models, for a complex systems perspective of nature and cognition. In that way multiagent modeling of complex systems has been fulfilling an important role. (shrink)

What is it like to perceive a feared object? According to a popular neo-Gibsonian theory in psychology, fear biases our perceptions of objects so as to encourage particular kinds of actions: when we are afraid, spiders may be perceived as physically closer than they are in order to promote fleeing. Firestone mounted severe criticisms against this view, arguing that these cases are better explained by non-perceptual biases that operate on accurate perceptions of the external environment. In this paper I will (...) argue that fear might indeed distort our perceptions of the world, but not in the way neo-Gibsonians suppose. In the view I favor, perceptual distortions occur as by-products of fearful attention, a special mode of attention that is part of an orchestrated defensive response that prepares the organism to deal effectively with a threat. To argue for this view I will rely on empirical evidence that fearful attention narrows down the focus of attention and favors processing of local rather than global features of stimuli, which may jointly explain why perceptual distortions might occur in fearful object seeing. This view has consequences not only for empirical investigations in fearful perceptual distortions, but also for an explanation of the intentionality of fear and the phenomenal integration of bodily and intentional elements in fear episodes. (shrink)

From all aspects of non-verbal behavior, the face is undoubtedly one of the richest and most important sources of information about the internal states of others. But facial expressions are rarely perceived in isolation. On the contrary, they are embedded in rich, dynamic social contexts that include body gestures and postures, situational knowledge, and so on. On the basis of these observations, we can naturally wonder if the overall context in which the face is embedded can change how emotions are (...) perceived in facial expressions. If so, in what ways, and what are the limits of these contextual effects? The purpose of this paper is to explore some possibilities concerning the role of context in emotion perception, from basic emotion theory, who holds that discrete emotion categories can be read out directly from the face in an invariant manner, to more contemporary approaches that assign a constitutive role for context in emotion perception. Although the debate is far from settled, the conclusions of the paper will point to a new way of looking at emotional phenomena, where the dyad of interaction becomes the basic unit of analysis, and where emotions are conceived as emergent properties of a relationship in particular contexts of interaction. (shrink)

O objetivo deste artigo é sugerir que os ensinamentos Buddhistas sobreanattā(não-eu) não devem ser entendidos como uma negação categórica do eu, mas fazem parte de uma estratégia soteriológica comumente empregada pelo Buddha, de utilizar algo como ferramenta para o seu próprio fim. Tomando o kamma(ação) como o elemento central que estrutura todos os ensinamentos, podemos pensar na identificação do eu como um tipo de ação. Algumas instâncias desta ação serão hábeis e condutoras à libertação, e outras inábeis e condutoras ao (...) sofrimento. Com isso em mente, este artigo irá analisar algumas ações inábeis do eu e do não-eu em suttasselecionados do Cânone Pali, mostrando como se encaixam na estratégia do Buddha de se utilizar de elementos como ferramentas para o abandono desses próprios elementos. Nessa perspectiva, o eu não é negado em absoluto desde o início do caminho, mas aprende-se a usa-lo de forma hábil como um meio de abandoná-lo. (shrink)

A doutrina do renascimento transmite a ideia de uma perspectiva temporal mais extensa, que abarca múltiplas vidas. Mas a medida em que o buddhismo chega à modernidade, outras interpretações começam a aparecer. Um exemplo é a interpretação psicológica de Ajahn Buddhadāsa, segundo a qual o termo “renascimento" se refere ao surgimento sucessivo da ideia do “eu" a cada instante de consciência. Esta interpretação diminui consideravelmente a extensão da perspectiva temporal ligada ao renascimento. Contra esta interpretação, Thānissaro Bhikkhu argumentou que uma (...) perspectiva temporal mais extensa é necessária para a compreensão de conceitos centrais do buddhismo como kamma ou dukkha. O objetivo principal deste artigo será investigar o papel da temporalidade na compreensão desses conceitos. Aliviando as preocupações de Thānissaro Bhikkhu, irei argumentar que uma perspectiva temporal mais restrita parece ser igualmente capaz de prover os elementos necessários para a compreensão profunda e completa dos principais ensinamentos buddhistas. (shrink)

Demonstrative thoughts are distinguished by the fact that their contents are determined relationally, via perception, rather than descriptively. Therefore, a fundamental task of a theory of demonstrative thought is to elucidate how facts about visual perception can explain how these thoughts come to have the contents that they do. The purpose of this paper is to investigate how cognitive psychology may help us solve this metasemantic question, through empirical models of visual processing. Although there is a dispute between attentional and (...) non-attentional models concerning the best metasemantic mechanism for demonstrative thoughts, in this paper I will argue in favor of a hybrid model, which combines both types of processes. In this picture, attentional and non-attentional mechanisms are not mutually exclusive, and each plays a specific role in determining the singular content of demonstrative thoughts. (shrink)

A short entry on social affordance. Social affordances are possibilities for social interaction or possibilities for action that are shaped by social practices and norms.

In this chapter, I put forward and sustain an articulation of the notion of bodily skill based on ecological psychology, and I show how it is relevant for the debate between Dreyfus and McDowell about the skillful coping and also for the debate about whether know-how is reducible or not to propositional knowledge. The right metaphor to understand bodily skills is not the computer metaphor but the radio metaphor. These skills results from a process of organism attunement to its environment.

In this paper, we defend that demonstratives are expressions of joint attention. Though this idea is not exactly new in the philosophical or linguistic literature, we argue here that their proponents have not yet shown how to incorporate these observations into more traditional theories of demonstratives. Our purpose is then to attempt to fill this gap. We argue that coordinated attentional activities are better integrated into a full account of demonstratives as meta-pragmatic information. Our claim is twofold. First, we claim (...) that pragmatically presupposing salience is a fundamental aspect of using demonstratives. Secondly, we hold that the pragmatics of demonstrating can only be properly understood in relation to meta-pragmatic conditions that have to do with joint attention. We use tests of truth-value gap as evidence for our claim. Our proposal provides us with a complete view of what speakers do and presuppose when engaging in acts of demonstrative reference through language. (shrink)

In this paper, I articulate and discuss Clifford's two main arguments in favor of the norm that it is illegitimate to believe based on insufficient evidence. The first argument appeals to the instrumental value of belief, and the second one appeals to our intrinsic interest in the truth. Both arguments bring to the fore the relevance of moral and social factors to determine norms for belief. I sustain that the first argument is insufficient to establish Clifford's norm in general. Beliefs (...) that are not a mean to an action fall outside the scope of the first argument. The second argument has a wider scope. However, it can be undermined if the agent follows an intellectualized norm that aims to protect the rest of her cognitive and active life from her unjustified beliefs. It’s an empirical matter whether a human agent is able to follow this norm. I defend that Clifford’s norm should be reformulated, including some parameters that have influence on the sufficiency of evidence. Finally, prudential and moral factors can affect the legitimacy of belief. It’s legitimate to believe without sufficient evidence only in special cases, when the agent insulates the unjustified belief, or when the good that results from believing surpasses the harms yielded by credulity. (shrink)

Com este artigo, pretendo examinar a maneira pela qual ocorreria a necessidade natural, em seus diversos aspectos, nos distintos processos gerativos composicionais em Aristóteles. Em um caso, a necessidade natural se daria de um modo "sem mais", ou de um modo absoluto, por meio da qual se geram os agregados. Em outro, a necessidade natural se realizaria a partir de um princípio anterior regulativo ou determinante, que Aristóteles denomina de necessidade ex hupoteseos, com relação aos processos envolvidos na constituição dos (...) corpos homogêneos inanimados e, dos organismos vivos. No entanto, haveria uma diferença essencial relativamente ao acabamento composicional associado, por um lado, aos corpos homogêneos inanimados e, por outro, aos organismos vivos. Enquanto que o acabamento constituinte das composições homogêneas inanimadas se restringiria apenas ao todo composicional e suas propriedades características, o acabamento dos organismos vivos corresponderia ao todo composicional e as suas propriedades características, bem como este acabamento em vista da realização das atividades orgânico-funcionais, ou vitais. (shrink)

I try to read Aristotle's Poetics and Rhetoric as if they were an integral part of the Organon instead of separate works as they were sorted by Andronicus of Rhodes. The results are quite surprising. First, poetics and rhetoric, considered as sciences of speech, were much more intimately related to Aristotle's analytical logic than it is generally acknowledged by prominent interpreters. I maintain that Dialectics (the Topics) operated as a bridge leading from these two sciences to analytical logic; that the (...) types of speech encompassed by the four respective sciences did not only form a ladder, ascending from the more loose forms of persuasion to the more rigorous ones, but that there was between them a whole net of cross-currents and implications that were too much obvious for Aristotle to remain unaware of them, notwithstanding the fact that he doesn’t describe them anywhere. I maintain, in short, there was an unified science of persuasive speech, whose principles were implicitly intertwined in the fabric of Aristotle's Organon. By means of a comparative study of the works consecrated by Aristotle to poetics, rhetoric, dialectics and analytics, these principles could be unearthed and accurately expressed. I called them the theory of the four discourses. (shrink)

The initial problem which motivated the writing of this thesis arose from reading of Emile by Rousseau. In this work, it was possible to detect the influence of different theoretical approaches, such as rationalism and empiricism, inspiring the development of the educational plan designed by Rousseau for his imaginary student (Emile). The very core question of the present thesis regards to whether there was a theory of knowledge pertaining to Rousseau’s philosophical thinking and, if so, how it was related to (...) his theories of education. In the set of his oeuvre, Rousseau’s affiliation to authors like Descartes, Leibniz, Locke and Malebranche, as well as Condillac, Diderot, D’Holbach and Helvétius was discovered. As the reading of the great philosophical work of Rousseau progressed, an original knowledge theory was discovered, of the kind which accepts the coexistence of opposite thoughts. Pedagogy, in the context of (the work) Emile, arose out of the miscellany of such theories and also for the intense philosophical maturing process on the core of Rousseau’s thinking. This study intended, therefore, to understand the origin and development of Rousseau’s theory of knowledge, and also to figure out how the philosopher formulated his theories on Education, especially in Emile. The object of this research, materialized through the extensive bibliography of the Swiss philosopher, was intensively read and analyzed. The methodology used was that of comparative, descriptive and critical documentary research of the mentioned authors. This research is divided into three sections: the first one intends to investigate the philosophical influence from different authors on the foundations of Rousseau’s epistemology; the second section addresses Rousseau’s theories of Education; the third and final part investigates the link between theory of knowledge and Education within Rousseau’s philosophical thought. -/- . (shrink)

Se efectúa un diagnóstico sobre el estado del Sistema de Museos de la ciudad de Colonia de Sacramento, Uruguay, de forma tal de facilitar a las autoridades competente herramientas que le sean útiles cuando comiencen a utilizar la planificación estratégica. El objetivo se centró entonces en el análisis del entorno en el cual se encuentra inmerso el Sistema de Museos y su gestión actual. En base a dicho análisis se define la Matriz FODA de forma de posibilitar un acercamiento del (...) Sistema a la Planificación estratégica. En cuanto al contenido, el trabajo se divide en dos partes. En la primera parte se realiza una revisión de la literatura. Se comienza con una introducción a la economía de la cultura y luego a los museos; para luego analizar el estado de la cuestión relativa a la gestión de organizaciones y su aplicabilidad a los museos, poniendo énfasis en la misión y visión; planificación estratégica y otras herramientas. La revisión de la literatura culmina con el plan museológico. En la segunda parte se realiza el estudio de un caso concreto, donde se analiza la situación actual del Sistema de Museos en base a diferentes herramientas de gestión. A continuación, se exponen las conclusiones de la investigación y las recomendaciones. (shrink)

Since Wilfrid Sellars' attack on sense-date theories, it became hard to understand the role of perceptual experience in the justification of beliefs about the world. Many philosophers have started to sustain that experience only causes beliefs, never justifies them. In this thesis, I defend that experience justifies empirical beliefs non-inferentially. I work out three senses of 'justification': basement, reason and warrant. The idea is that experience can be a reason to believe. The subject can base upon his experience in order (...) to form or hold a belief about the world. The distinction between vehicle and content has a important role in this thesis. Perceptual experience and belief are representational vehicles. Both can hold the same content. By this step I can explain the relevance of experience content to the truth of the belief. It is also necessary to explain how an experience can be a reason to believe in the first-person perspective. The inference model shows how a belief can be a reason for another belief. Nevertheless, the inference model can not be used to explain the transition from a perceptual state to a doxastic state, because experience can be a non-conceptual vehicle. Following Evans, I submit that the conceptualization act involved in the formation of a belief about the world is the key for understanding how experience can be a reason to believe, that is, how the transition from a perceptual state to a doxastic state can be rational. The empiricism defended is minimal. Although experience works as an unconditioned justifier for beliefs about the world, beliefs thus justified are not incorrigible. (shrink)