Psychologists have demonstrated the value of diversity – particularly diversity of viewpoints – for enhancing creativity, discovery, and problem solving. But one key type of viewpoint diversity is lacking in academic psychology in general and social psychology in particular: political diversity. This article reviews the available evidence and finds support for four claims: (1) Academic psychology once had considerable political diversity, but has lost nearly all of it in the last 50 years. (2) This lack of political diversity can undermine (...) the validity of social psychological science via mechanisms such as the embedding of liberal values into research questions and methods, steering researchers away from important but politically unpalatable research topics, and producing conclusions that mischaracterize liberals and conservatives alike. (3) Increased political diversity would improve social psychological science by reducing the impact of bias mechanisms such as confirmation bias, and by empowering dissenting minorities to improve the quality of the majority's thinking. (4) The underrepresentation of non-liberals in social psychology is most likely due to a combination of self-selection, hostile climate, and discrimination. We close with recommendations for increasing political diversity in social psychology. (shrink)

In Wittgenstein on Rules and Private Language, Saul Kripke rejects some of the most popular accounts of what meaning facts consist in on the grounds that they fail to accommodate the normative character of meaning. I argue that a widespread interpretation of Kripke's argument is incorrect. I contend that the argument does not rest on the contrast between descriptive and normative facts, but on the thought that speakers' uses of linguistic expressions have to be justified. I suggest that the line (...) of reasoning that I attribute to Kripke can be seen as putting pressure on the idea that predicate satisfaction is to be explained in terms of a relation between predicates and properties. (shrink)

The paper argues against Sosa’s claim that sensitivity cannot be differentially supported over safety as the right requirement for knowledge. Its main contention is that, although all sensitive beliefs that should be counted as knowledge are also safe, some insensitive true beliefs that shouldn’t be counted as knowledge are nevertheless safe.

The subject matter of this paper is the view that it is correct, in an absolute sense, to believe a proposition just in case the proposition is true. I take issue with arguments in support of this view put forward by Nishi Shah and David Velleman.

In the recent literature on confirmation there are two leading approaches to the provision of a probabilistic measure of the degree to which a hypothesis is confirmed by evidence. The first is to construe the degree to which evidence E confirms hypothesis H as a function that is directly proportional to p and inversely proportional to p . I shall refer to this as the probability approach. The second approach construes the notion as a function that is directly proportional to (...) the true-positive rate – the probability of the evidence if the hypothesis is true, p – and inversely proportional to the false-positive rate – the probability of the evidence if the hypothesis is false, p . These reverse conditional probabilities – of the evidence on the truth or falsehood of the hypothesis – are sometimes known as likelihoods. I shall refer to the approach to confirmation that uses them as the likelihood approach.For each of these approaches, there are two obvious options as to how to define the confirmation function. The first is to define it as the difference between the magnitude that is treated as increasing confirmation or p ) and the magnitude that is treated as decreasing confirmation or p ). The second is to define confirmation as the quotient of these two magnitudes.This yields four different measures of confirmation, represented in the following table: Differences RatiosProbabilities PD = p – p1 PR = Graphic2Likelihoods LD = p – p3 LR = Graphic4All these measures agree on whether or not E provides some support for H. Intuitively, we want to say that E provides some support for H just in case learning that E is true would make us assign a higher probability to H, i.e. when p(H …. (shrink)

I offer an interpretation of Wittgenstein's claim that Russell's theory of judgment fails to show that it's not possible to judge nonsense.

I focus on a family of inferences that are intuitively incapable of producing knowledge of their conclusions, although they appear to satisfy sufficient conditions for inferential knowledge postulated by plausible epistemological theories. They include Moorean inferences and inductive-bootstrapping inferences. I provide an account of why these inferences are not capable of producing knowledge. I argue that the reason why these inferences fail to produce knowledge of their conclusions is that inferential knowledge requires that the subject is more likely to believe (...) the premises of the inference if the conclusion is true than if it is false. I end by comparing the treatment of these cases that emerges from the approach that I recommend with the position advocated by Sherrilyn Roush in her recent book, Tracking Truth (2005). (shrink)

I endorse Kripke's (Wittgenstein's) conclusion that the standard of correct application required by the notion of rule-following can only be made sense of in terms of intersubjective agreement. This is not to be taken, as Kripke does, merely as providing assertibility conditions, but rather as a genuine account of what normativity consists in. As Blackburn has pointed out, this result entails that the notion of objective judgment is dependent, in a sense, on the shared inclinations of the members of the (...) community. But since the sceptical paradox admits of no noncommunal solution, it is the inclination-independence of the notion of objective judgment that has to be given up. (shrink)

The paper develops an account of semantic notions which occupies a middle ground between antirealism and traditional forms of realism, using some ideas from the work of John McDowell. The position is based on a contrast between two points of view from which we might attempt to characterize our linguistic practices from the cosmic exile s point of view and from the midst of language as a going concern. The contrast is drawn in terms of whether our characterization of our (...) linguistic practices is taken to result from engagement in the very same practices that we are trying to characterize. The position takes realism to be correct when understood as an account from the internal perspective, but incorrect when taken as an account from the external perspective. However, the intelligibility of the question as to what our practices would look like from the cosmic exile s point of view is presented as problematic. (shrink)

I provide a construal of the epistemic regress problem and I take issue with the contention that a foundationalist solution is incompatible with an internalist account of warrant. I sketch a foundationalist solution to the regress problem that respects a plausible version of internalism. I end with the suggestion that the strategy that I have presented is not available only to the traditional versions of foundationalism that ascribe foundational status to experiential beliefs. It can also be used to generate a (...) version of internalist foundationalism based on reliabilist principles. (shrink)

The paper deals with Hilary Putnam's model-theoretic argument against metaphysical realism. It considers the objections to the argument raised by David Lewis, Mark Heller, James van Cleve, Anthony Brueckner and others, to the effect that Putnam's reasoning fails to undermine versions of metaphysical realism which construe reference along externalist lines. I argue that the version of Putnam's argument that his critics have attacked is indeed powerless against externalist accounts of reference, but that, on a different construal, the argument puts genuine (...) pressure on externalism. On the version of the argument that I develop, the thrust of the model-theoretic considerations is that an externalist construal of reference would make grasp of reference facts impossible. (shrink)

There are good moral reasons to support euthanasia, and these reasons are fundamentally of a utilitarian root. There are few moral reasons to oppose euthanasia in its strict sense, and they are clearly outweighed by the reasons argumented from a utilitarian perspective. Such teleological and consequentialist good reasons were originally advanced by David Hume in his brief and brilliant essay "Of Suicide" (1757), the true source for current Bioethics. Hume's arguments have been expanded in scope by some contemporary utilitarians, especially (...) by Peter Singer. Both the classical arguments of Hume as the most current by Sin­ger (and by some other utilitarian thinkers) are evaluated here, holding, in conclusion, that, regardless of specific criticisms, and of some important discrepancies between the different kinds of utilitarianists, however, the utilitarian ethical position is a strong and solid support for the defense of the "good voluntary death" as an individual right (in fact, a legitimate interest that demands legal protection) with a dominant force over other rights or interests, both individual or collective. (shrink)

Understanding compositional practices is a major goal of musicology and music theory. Compositional practices have been traditionally viewed as disembodied and idiosyncratic. This view makes it hard to integrate musical creativity into our understanding of the general cognitive processes underlying meaning construction. To overcome this unnecessary isolation of musical composition from cognitive science, in this conceptual analysis, we approach compositional processes with the analytic tools of blending theory, material anchoring, and enaction. Our case study is Iannis Xenakis’ use of sieves (...) for distributing rhythmic patterns inPsappha. Though disregarded in previous accounts, the timeline and the gearwheel provide crucial conceptual templates for anchoring Xenakis’ idea of time for this score. This case study of conceptual integration templates for temporal representation seeks to gain insight into musical creativity, embodiment, and blending, especially into how virtual interactions with material structures facilitate the construction of complex meanings. (shrink)

The paper deals with the interpretation of Wittgenstein's views on the power of occurrent mental states to sort objects or states of affairs as in accord or in conflict with them, as presented in the rule-following passages of the Philosophical Investigations. I shall argue first that the readings advanced by Saul Kripke and John McDowell fail to provide a satisfactory construal of Wittgenstein's treatment of a platonist account of this phenomenon, according to which the sorting power of occurrent mental states (...) is to be explained by reference to the mind's ability to grasp universals. I contend that the argument that Kripke extracts from Wittgenstein's discussion doesn't succeed in undermining the platonist position. Then I argue that McDowell's reading exhibits a more serious shortcoming: the position that he ascribes to Wittgenstein is indistinguishable from the platonist account. Then I put forward a proposal as to how to articulate the relationship between Wittgenstein's views and the platonist position. (shrink)

In this paper I assess the two central ingredients of Laurence BonJour’s position on empirical knowledge that have survived the transition from his earlier coherentist views to his current endorsement of the doctrine of the given: his construal of the problem of the epistemic regress and his rejection of an internalist solution to the problem. The bulk of the paper is devoted to a critical assessment of BonJour’s arguments against externalism. I argue that they fail to put real pressure on (...) externalism, as they rely on a highly questionable conception of epistemic rationality and responsibility. Then, more briefly, I take issue with BonJour’s endorsement of the irrelevance thesis—the claim that even if externalism were true it would not offer a satisfactory solution to the epistemic regress problem. I contend that he is not entitled to subscribe this thesis unless he is prepared to abandon his construal of the problem. (shrink)

Embryonic development in a given species is orchestrated by genes regulating growth and differentiation in a stereotyped and conserved manner, resulting in embryos of consistent size and shape. Several signaling pathways, including that of Sonic Hedgehog (SHH), have been implicated in these processes. Recent experiments with Gas1 indicate that it may act as a growth-inducing gene, challenging its previous function as a gene specifically involved in growth arrest. Moreover, GAS1, a GPI-linked membrane protein, can bind SHH, suggesting an interacting link (...) between growth and patterning through SHH and GAS1.(1-4) BioEssays 24:22–26, 2002. © 2002 John Wiley & Sons, Inc. (shrink)

Information theoretic semantics proposes to construe predicate reference in terms of nomological relations between distal properties and properties of representational mental events. Research on the model has largely concentrated on the problem of choosing the nomological relation in terms of which distal properties are to be singled out. I argue that, in addition to this, an information theoretic account has to provide a specification of which properties of representational mental events will play a role in determining reference, qua bearers of (...) nomological relations. I contend that this task poses a serious additional challenge to the viability of the model. (shrink)

The paper deals with our ability to classify objects as being of a certain kind on the basis of information provided by the senses (empirical classification) and to ascribe empirical predicates to objects on the basis of these classificatory verdicts (empirical predication). I consider, first, the project of construing the episodes in which this ability is exercised as involving universals. I argue that this construal faces epistemological problems concerning our access to the universals that it invokes. I present the empiricist (...) strategy for dealing with these problems by appeal to sensory qualities, and argue that it rests on a mistake. Then I turn to sketching an account of our faculty of empirical classification and predication which doesn't invoke universals. The account takes as its starting point the nominalist construal of sense experience to be found in the work of C. I. Lewis and Nelson Goodman. I argue that this construal has the resources for explaining some of the central features of the practice of empirical predication. There are those who feel that our ability to understand general terms ... would be inexplicable unless there were universals as objects of apprehension. And there are those who fail to detect, in such appeal to a realm of entities over and above the concrete objects in space and time, any explanatory value. W. V. O. Quine, ‘Logic and the Reification of Universals’. (shrink)

An introduction to the basic concepts and results of contemporary logic, including a discussion of the basic mathematical tools needed to master the technical aspects of the subject.

An account of predicate reference is presented which attempts to steer a middle course between reductionism, which construes the notion in terms of speakers' inclinations, and {transcendent) realism, which construes the notion in terms of properties. It is first introduced in the context of a discussion of the accounts of length (distance) advanced by Hans Reichenbach, Adolf Grünbaum and Hilary Putnam. A general account of predicate reference is then developed that explains the notion in terms of speakers' inclinations, while rejecting (...) the idea that this explanation should take the form of a reduction. The view is presented as a vindication of extreme nominalism, as it explains predicate reference solely in terms of the notion of qualia introduced by C.I. Lewis and developed by Nelson Goodman, which, it is argued, is definable in terms of speakers' classificatory propensities. Some connections are explored between the position that is presented and the views of Michael Dummett, John McDowell, Mark Johnston and Hilary Putnam, among others. (shrink)

ABSTRACT I argue that some of the central doctrines of Wittgenstein's Tractatus Logico-Philosophicus can be seen as addressing the twin problems of semantic unity and...

Propaganda has been historically used for the benefit of certain social groups faced up to another. This propaganda is not always ethical at all. It is based on misconceptions, lies, and fallacies. We have analyzed (by using an experimental Psychology task) the presence and cognitive weight of certain mental footnotes and their influence on the Reasoning of Hispanic-Americans (Ecuadorian). These mental footnotes have been extracted from the classical work “A brief account of the destruction of the Indies” of Bartolomé de (...) las Casas in 1552. The most relevant and significant finding of this study is the clear evidence that nowadays we can still find these historical falsehoods in the current cognitive system of Ecuadorian people which are product of a well-planned and maliciously orchestrated propaganda. We conclude that all the contents of the Spanish black legend are the consequences of the aspirations of some social sectors to boycott the Spanish culture. (shrink)

José L. Zalabardo puts forward a new interpretation of central ideas in Wittgenstein's Tractatus Logico-Philosophicus concerning the structure of reality and our representations of it in thought and language. He presents the picture theory of propositional representation as Wittgenstein's solution to the problems that he had found in Bertrand Russell's theories of judgment. Zalabardo then attributes to Wittgenstein the view that facts and propositions are ultimate indivisible units, not the result of combining their constituents. This is Wittgenstein's solution to (...) the problem of the unity of facts and propositions. Finally, Zalabardo shows that Wittgenstein's views on the analysability of everyday propositions as truth functions of elementary propositions arise from his views on the epistemology of logic: this offers a new perspective on the nature of Tractarian analysis. (shrink)

I consider the problem of reflective knowledge faced by views that treat sensitivity as a sufficient condition for knowledge, or as a major ingredient of the concept, as in the analysis I advance in Scepticism and Reliable Belief. I present the problem as concerning the correct analysis of SATs — beliefs to the effect that one of my current beliefs is true. I suggest that a plausible analysis of SATs should treat them as neither true nor false when they ascribe (...) truth to a non-existent belief. I argue that the problem is inescapable if we construe SATs as ascribing the property of truth to a belief. Deflationism manages to avoid the problem of reflective knowledge, but it does so by violating alethic priority — the principle that our account of representation must be built on our account of truth. I argue that we can avoid the problem of reflective knowledge while preserving alethic priority with a pragmatist account of truth — according to which truth is explicated in terms of the rules that govern the practice of assessing judgments and related items as true or false. (shrink)

This volume comprises nine lively and insightful essays by leading scholars on the philosophy of Ludwig Wittgenstein, focusing mainly on his early work.

I argue that a target of the rule - following considerations is the thought that there are mental episodes in which a consciously accessible item guides me in my decision to respond in a certain way when I follow a rule. I contend that Wittgenstein’s position on this issue invokes a distinction between a literal and a symbolic reading of the claim that these processes of guidance take place. In the literal sense he rejects the claim, but in the symbolic (...) sense he sees nothing wrong with it. I consider some arguments that Wittgenstein deploys against the literal sense of the claim. (shrink)

In this paper we shall prove that certain subvarieties of the variety of Salgebras (Heyting algebras with successor) has amalgamation. This result together with an appropriate version of Theorem 1 of [L. L. Maksimova, Craig’s theorem in superintuitionistic logics and amalgamable varieties of pseudo-boolean algebras, Algebra i Logika, 16(6):643-681, 1977] allows us to show interpolation in the calculus IPC S (n), associated with these varieties.We use that every algebra in any of the varieties of S-algebras studied in this work has (...) a canonical extension, to show completeness of the calculus IPC S (n) with respect to appropriate Kripke models. (shrink)

Esta investigación implementó un modelo multicomponente para promover competencias prosociales y prevenir la violencia escolar. Se desarrolló en once escuelas primarias marginadas en Sonora y Chiapas. Se utilizó un protocolo mixto, la fase cuantitativa se efectuó mediante un cuasiexperimento; la cualitativa recurrió a la investigación-acción participativa. Algunos resultados muestran un aumento en la práctica de competencias prosociales en los participantes; el índice de prosociabilidad estudiantil aumentó en ambas ciudades, y hubo una reducción en la violencia escolar. Las estrategias incidieron en (...) el mantenimiento de climas escolares de cordialidad, mayor participación y cohesión, desarrollo de la empatía, asertividad, mejor manejo de emociones y de resolución pacífica de conflictos, lo que en suma coadyuvó a la mejora del aprovechamiento educativo y al aumento de redes de amistad. (shrink)

The main aim of the present study is to identify which mental footnotes (related to Adam Smith’s Capitalism) have more weight in the current cognitive processing of participants. We used the “Wealth of Nations” as the main source of the concepts from this author. An experimental design (based on a previous qualitative research) was carried out to test the influence of mental footnotes on the citizens’ decision on the validity of the concepts. The findings point out that there are strong, (...) current, mental footnotes related to the Adam Smith’s concept of price. People mostly understand that, for every product, the entrepreneur has to recover their initial investment and to gain a profit. On the other hand, the fact that entrepreneurs have to pay some expenditures and they need to have profits determines the price of products. (shrink)

In this paper it is assumed that pairs of incommensurable theories are in fact comparable. This point of view leads us to accept that incommensurable theories deal with shared portions of the world. Ontosemantic conditions of comparability between two incommensurable theories are considered along the paper.

David Lewis has argued that we cannot identify the fundamental properties. It is generally accepted that we can resist Lewis's conclusion if we are prepared to accept a structuralist account of fundamental properties, according to which their causal/nomological role is essential to their identity. I argue, to the contrary, that a structuralist construal of fundamental properties does not sustain a successful independent strategy for resisting Lewis's conclusion. The structuralist can vindicate our ability to identify fundamental properties only if she accepts (...) epistemic principles that suffice for blocking Lewis's conclusion even if fundamental properties are not construed along structuralist lines. (shrink)

The paper deals with a version of the principle that a belief source can be a knowledge source only if the subject knows that it is reliable. I argue that the principle can be saved from the main objections that motivate its widespread rejection: the claim that it leads to skepticism, the claim that it forces us to accept counterintuitive knowledge ascriptions and the claim that it is incompatible with reliabilist accounts of knowledge. I argue that naturalist epistemologists should reject (...) these claims. I introduce my treatment of the principle by considering the analogous situation posed by the closure principle. (shrink)

I argue that our procedures for determining whether ascriptions of a predicate represent things as being a certain way are ultimately pragmatic. Pragmatic procedures are not subject to validation by the referential procedure – determining whether there is a property playing the role of its referent. Predicates can represent even if we can't provide an independent identification of its referent. For these predicates, the speakers’ knowledge of how they represent objects as being would have to be construed in terms of (...) the ascription practices they associate with the predicates. The same approach can be applied to semantic predicates, such as ‘is representational’ or ‘refers to’. They can be treated as representational even if we can't provide an independent identification of their referents. The availability of this position undermines accounts of the referents of semantic predicates in naturalistic terms. (shrink)

I discuss the idea that the objects of Wittgenstein’s Tractatus are propertyless bare particulars, an idea defended by Leonard Goddard and Brenda Judge in their monograph, The Metaphysics of the Tractatus. I present the difficulties that Goddard and Judge raise for this construal concerning the idea that Tractarian objects have natures that determine their possibilities of combination, and I assess the solution they propose. I offer an alternative construal of the notion with which these difficulties can be overcome.