This paper argues for a version of perspectival realism as to abstract objects. Differently from bodies and mental states, abstract realities are supposed to be always unobservable objects, things never given in perception. Contrary to this received view, this paper tries to show that abstract objects can be perceived, even though people aren’t currently aware of perceiving them. Moreover, in order to perceive abstract objects we must be accordingly equipped. Our equipment to perceive abstract objects involves not only retino-cortical elements, (...) but mental and cultural conditions as well. (shrink)

In this paper, I try to argue that both science, as a specific kind of knowledge, and human knowledge in general are activities of constructing models. In the first part, I present my conception according to which scientific models are abstract entities, and that scientific theories may be interpreted as classes of models as abstract replicas of real settings, in which certain laws apply. In the second part, I try to extend that same conception to ordinary human knowledge, particularly to (...) the case of the cognitive activity of classifying objects of experience. (shrink)

Nota sobre Psicologia Experimental e Natureza Humana: Ensaios de Filosofia da Psicologia, de Hugh Lacey. (Flonanopolis NEL–UFSC, 2001).

Este artigo procura discutir a concepção behaviorista radical de Skinner sobre as regras metodológicas e as leis científicas. Skinner é basicamente simpático ao operacionismo porque, de acordo com essa concepção, as possíveis leis psicológicas não são interpretadas de forma realista (e mentalista), mas como uma forma de controlar e modelar o comportamento. Como a análise do comportamento é aplicada à própria ciência, é natural esperar que os behavioristas defendam uma filosofia operacionista da ciência. Mas Skinner também é um crítico do (...) operacionismo por causa das conexões dessa doutrina com o positivismo. Ora, desse ponto de vista, o problema é como interpretar a ciência como um empreendimento “operacionista,” embora o comportamento dos cientistas não deva ser reduzido a um comportamento dirigido por regras, nem os enunciados científicos a regras metodológicas. Compreendida assim, a filosofia da ciência de Skinner é muito parecida com a de Kuhn, o que vai ser discutido aqui também. Palavras-chave: Skinner, operacionismo, behaviorismo radical, regras metodológicas. (shrink)

Este artigo apresenta um modelo do agente livre compatível com as teorias evolutivas e neurofisiológicas da mente e com base especificamente nas noções de liberdade em situação, de Sartre, e de racionalidade limitada, de Simon. Além disso, a noção de agência de controle de Skinner é generalizada, sendo aplicada também ao caso de estruturas cerebrais. O agente livre é descrito como o indivíduo humano cujo eu consciente escolhe e decide no contexto de múltiplas determinações tanto ambientais quanto neurofisiológicas. A autonomia (...) do agente humano é resultado dos processos que levam à aquisição das modalidades da consciência existencial, inclusive a consciência moral. O agente livre é alguém que alcança o autocontrole. (shrink)

In this paper I analyze the relation between ascribing knowledge to a human agent in two kinds of circumstances, namely acting according to environmental contingences and acting according to a rule. My discussion begins with the distinction I put forward between descriptive and explicative hypotheses. After relating the notions of rule and belief, I try to support the idea that modifications in overt behavior are prior to any ascriptions of knowledge to an agent, connecting this topic with processes of investigation. (...) I discuss also if there can be beliefs which do not bring about modifications of behavior, and I argue that in certain circumstances of our investigation about the behavior of people, in order to give it unity, we are to ascribe beliefs of that kind to people. Given those points, I depict epistemology as the theory of the processes of investigation involved in human action. DOI:10.5007/1808-1711.2010v14n2p279. (shrink)

In this paper I analyze the relation between ascribing knowledge to a human agent in two kinds of circumstances, namely acting according to environmental contingences and acting according to a rule. My discussion begins with the distinction I put forward between descriptive and explicative hypotheses. After relating the notions of rule and belief, I try to support the idea that modifications in overt behavior are prior to any ascriptions of knowledge to an agent, connecting this topic with processes of investigation. (...) I discuss also if there can be beliefs which do not bring about modifications of behavior, and I argue that in certain circumstances of our investigation about the behavior of people, in order to give it unity, we are to ascribe beliefs of that kind to people. Given those points, I depict epistemology as the theory of the processes of investigation involved in human action. • DOI:10.5007/1808-1711.2010v14n2p279. (shrink)

This paper deals with the questions of emergence and complex (mental and social) systems and with downward determination from the viewpoint of perspectival realism. These are issues concerning the foundations of the human sciences, generally speaking, and particularly psychology and sociology. A criterion is put forward, which distinguish metaphysicalfrom ontological (conceptual) problems, and the notions of complex, hierarchic system and causation that would be suitable for those that defend emergence and perspectivist foundations of the human sciences are discussed. Este artigo (...) trata das questões da emergência de sistemas complexos (mentais e sociais) e da determinação descendente do ponto de vista do realismo perspectivista. Essas são questões sobre os fundamentos das ciências humanas em geral e, em particular, da psicologia e da sociologia. É proposto um critério para distinguir problemas metafísicos de problemas ontológicos (ou conceituais), e são discutidas as noções de sistema complexo hierárquico e de causação que seriam adequadas para uma fundamentação emergentista e perspectivista das ciências humanas. (shrink)

Editorial Note doi: 10.5007 / 1808-1711.2011v15n3p381.

RESUMO Este artigo analisa a questão da causalidade descendente em relação a sistemas emergentes. A partir das considerações de Emmeche, Køppe e Stjernfelt, que são aqui criticadas, e em parte com base naquelas de Pattee, o artigo apresenta uma interpretação do tipo de relação que existe entre as condições de base de um evento e este último, e as relações entre a totalidade de um sistema e suas partes, empregando as noções de comunidade e de finalidade interna, noções essas devidas (...) a Kant. ABSTRACT This paper deals with the question of downward causation in connection with emergent systems. Beginning with the comments offered by Emmeche, Køppe, and Stjernfelt, which are criticized here, and partially based on those of Pattee, the paper puts forward an interpretation of the kind of relation that exists between the basal conditions for a given event and the event itself, and the relations between a given system as a whole and its parts making use of the concepts of community and internal purposiveness, concepts due to Kant. (shrink)

This paper aims at discussing the usage by Davidson as to events of Quine's criterion of ontological commitment. According to Davidson, we are ontologically committed to the existence of events as individuals as we employ literally terms such as ‘Caesar’s death’, for instance. Davidson extends this analysis to actions as well, since actions are human events. One of the consequences of this view is that psychology deals with individual events in a non-lawful way. An alternative view is here proposed, based (...) on a complementary criterion, namely ontological density, according to which from the point of view of a given theory, we can always distinguish between events (or phenomena) and individuals (entities) among the overall occurrences described by the theory. Some consequences of this alternative view of psychology as a science dealing lawfully with general human events are also explored here. (shrink)

http://dx.doi.org/10.5007/1808-1711.2008v12n1p73 This paper aims at discussing from the point of view of a pragmatic stance the concept of model as an abstract replica. According to this view, scientific models are abstract structures different from set-theoretic models. The view of models argued for here stems from the conceptions of some important philosophers of science who elaborated on the notion of model, such as Suppe, Cartwright, Hempel, and Nagel. Differently from all those authors, however, the conception of model argued for here is (...) typically pragmatic, not semantic, i.e. it has not to do with the interpretation of scientific theories, but with the explanation and construction of given circumstances (both abstract and concrete), from the point of view of the theory. (shrink)

This paper aims at discussing from the point of view of a pragmatic stance the concept of model as an abstract replica. According to this view, scientific models are abstract structures different from set-theoretic models. The view of models argued for here stems from the conceptions of some important philosophers of science who elaborated on the notion of model, such as Suppe, Cartwright, Hempel, and Nagel. Differently from all those authors, however, the conception of model argued for here is typically (...) pragmatic, not semantic, i.e. it has not to do with the interpretation of scientific theories, but with the explanation and construction of given circumstances, from the point of view of the theory. (shrink)

Nesse artigo, procuramos mostrar que duas alternativas célebres aos fundacionalismos tradicionais - o falibilismo de Popper e o naturalismo de Quine - apresentam consequências indesejáveis a respeito do problema da base empírica. Propomos uma terceira alternativa - o ceticismo alético -, que pode lidar adequadamente com esse problema. Além disso, compreendemos o ceticismo alético como uma doutrina diferente do ceticismo pirrônico tradicional (e outras versões antigas e modernas de ceticismo), no que diz respeito ao objetivo da investigação, embora ele coincida (...) com o pirronismo em seu método. O ceticismo alético evita não apenas o naturalismo, mas também o falibilismo. (shrink)

ABSTRACTIan Hacking puts forward a distinction between two kinds of scientific realism. According to scientific realism about theories, scientific theories are accepted as approximately true; according to scientific realism about unobservable entities, the theoretical terms occurring in scientific theories refer to existing, real entities. This article seeks to show that Claude Bernard's philosophy of science is a realist one about scientific theories, but anti-realist about unobservable entities. The term “fictionalism” is used here to stand for this sort of anti-realism about (...) unobservable entities. (shrink)