Spatial asymmetries are an intriguing feature of directed attention. Recent observations indicate an influence of temperament upon the direction of these asymmetries. It is unknown whether this influence generalises to visual orienting behaviour. The aim of the current study was therefore to explore the relationship between temperament and measures of spatial orienting as a function of target hemifield. An exogenous cueing task was administered to 92 healthy participants. Temperament was assessed using Carver and White's (1994) Behavioural Inhibition System and Behavioural (...) Activation System (BIS/BAS) scales. Individuals with high sensitivity to punishment and low sensitivity to reward showed a leftward asymmetry of directed attention when there was no informative spatial cue provided. This asymmetry was not present when targets were preceded by spatial cues that were either valid or invalid. The findings support the notion that individual variations in temperament influence spatial asymmetries in visual orienting, but only when lateral targets are preceded by a non-directional (neutral) cue. The results are discussed in terms of hemispheric asymmetries and dopamine activity. (shrink)

This introduction to the Common Knowledge symposium titled “Comparative Relativism” outlines a variety of intellectual contexts where placing the unlikely companion terms comparison and relativism in conjunction offers analytical purchase. If comparison, in the most general sense, involves the investigation of discrete contexts in order to elucidate their similarities and differences, then relativism, as a tendency, stance, or working method, usually involves the assumption that contexts exhibit, or may exhibit, radically different, incomparable, or incommensurable traits. Comparative studies are required to (...) treat their objects as alike, at least in some crucial respects; relativism indicates the limits of this practice. Jensen argues that this seeming paradox is productive, as he moves across contexts, from Lévi-Strauss's analysis of comparison as an anthropological method to Peter Galison's history of physics, and on to the anthropological, philosophical, and historical examples offered in symposium contributions by Barbara Herrnstein Smith, Eduardo Viveiros de Castro, Marilyn Strathern, and Isabelle Stengers. Comparative relativism is understood by some to imply that relativism comes in various kinds and that these have multiple uses, functions, and effects, varying widely in different personal, historical, and institutional contexts that can be compared and contrasted. Comparative relativism is taken by others to encourage a “comparison of comparisons,” in order to relativize what different peoples—say, Western academics and Amerindian shamans—compare things “for.” Jensen concludes that what is compared and relativized in this symposium are the methods of comparison and relativization themselves. He ventures that the contributors all hope that treating these terms in juxtaposition may allow for new configurations of inquiry. (shrink)

Jeffrey has devised a probability revision method that increases the probability of hypothesis H when it is discovered that H implies previously known evidence E. A natural extension of Jeffrey's method likewise increases the probability of H when E has been established with sufficiently high probability and it is then discovered, quite apart from this, that H confers sufficiently higher probability on E than does its logical negation H̄.

We establish a probabilized version of modus tollens, deriving from p(E|H)=a and p()=b the best possible bounds on p(). In particular, we show that p() 1 as a, b 1, and also as a, b 0. Introduction Probabilities of conditionals Conditional probabilities 3.1 Adams' thesis 3.2 Modus ponens for conditional probabilities 3.3 Modus tollens for conditional probabilities.

Evidentiary propositions E 1 and E 2, each p-positively relevant to some hypothesis H, are mutually corroborating if p > p, i = 1, 2. Failures of such mutual corroboration are instances of what may be called the corroboration paradox. This paper assesses two rather different analyses of the corroboration paradox due, respectively, to John Pollock and Jonathan Cohen. Pollock invokes a particular embodiment of the principle of insufficient reason to argue that instances of the corroboration paradox are of negligible (...) probability, and that it is therefore defeasibly reasonable to assume that items of evidence positively relevant to some hypothesis are mutually corroborating. Taking a different approach, Cohen seeks to identify supplementary conditions that are sufficient to ensure that such items of evidence will be mutually corroborating, and claims to have identified conditions which account for most cases of mutual corroboration. Combining a proposed common framework for the general study of paradoxes of positive relevance with a simulation experiment, we conclude that neither Pollock’s nor Cohen’s claims stand up to detailed scrutiny. I am quite prepared to be told…”oh, that is an extreme case: it could never really happen!” Now I have observed that this answer is always given instantly, with perfect confidence, and without any examination of the proposed case. It must therefore rest on some general principle: the mental process being something like this—“I have formed a theory. This case contradicts my theory. Therefore, this is an extreme case, and would never occur in practice.”Rev. Charles L. Dodgson. (shrink)

Prior generations’ electoral crises (e.g., gerrymandering) have dealt mainly with political maneuverings around geographical shifts. We analyze four recent (1998–2003) American electoral crises: the Clinton impeachment controversy, the 2000 Florida presidential election, the Texas legislators’ flight to Oklahoma and New Mexico, and the California gubernatorial recall. We show that in each case temporal manipulation was at least as important as geographical. We highlight emergent electoral practices surrounding the manipulation of time, which we dub “temporal gerrymandering.” We suggest a theory of (...) postmodern electoral crises, in which the rules of time and space are simultaneously in flux. These crises expose concerns with early American democratic theory, which was based on an understanding of “the people” as geographically and temporally unidimensional. Representative systems, therefore, were designed largely without reference to geographic and temporal complexity. (shrink)

The introduction and elimination rules for material implication in natural deduction are not complete with respect to the implicational fragment of classical logic. A natural way to complete the system is through the addition of a new natural deduction rule corresponding to Peirce's formula → A) → A). E. Zimmermann [6] has shown how to extend Prawitz' normalization strategy to Peirce's rule: applications of Peirce's rule can be restricted to atomic conclusions. The aim of the present paper is to extend (...) Seldin's normalization strategy to Peirce's rule by showing that every derivation Π in the implicational fragment can be transformed into a derivation Π' such that no application of Peirce's rule in Π' occurs above applications of →-introduction and →-elimination. As a corollary of Seldin's normalization strategy we obtain a form of Glivenko's theorem for the classical {→}-fragment. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Platonopolis: Platonic Political Philosophy in Late AntiquityMichael F. WagnerDominic J. O'Meara. Platonopolis: Platonic Political Philosophy in Late Antiquity. Oxford: Clarendon Press, 2003. Pp. xi + 249. Cloth, $55.00.Porphyry tells of Plotinus's failed petition to emperor Gallienus to (re)establish a "city of philosophers" conformed to Plato's laws, named Platonopolis (Vit. Plo.12). O'Meara here articulates primary themes and developments in philosophical political thought in the classical Neoplatonic period, from Plotinus's (...) day in the mid-third century into the sixth century. Concurrently, he addresses head on "the conventional view that the Platonist philosophers of Late Antiquity had no political philosophy" (3). This view exemplifies the more general perspective that the Neoplatonists were simply disinterested in this-worldly affairs in lieu of "an immaterial world... our true 'homeland,' where we can at last attain the good we desire" (3). Consequently, O'Meara provides both a unique study of an important [End Page 205] topic and a compelling case for a more complete, balanced understanding of Neoplatonic other-worldly-ness. O'Meara's study covers key figures from four main groups of (neo)Platonists: Plotinus and his students; the schools in Syria and Asia Minor inspired by Iamblichus; the Athenian school (Plutarch, Proclus, Damascius et al.); and the Alexandrian school (Hyapatia, Philoponus, Olympiodorus et al.). He organizes his investigation (chapters) into three Parts.The pivotal concept in O'Meara's two-pronged endeavor is divinization - "assimilation and unification, as far as possible, to god" (31, Proclus) - a concept whose meaning for classical Neoplatonists ranges from "becoming a god" to "imitating some form of divine life, in one way or another" (31). Part I focuses on the Neoplatonists' shared association of a human soul's divinization with virtue-osity [my jargon], beginning with Plotinus's distinction between political virtue(s) and purification—or purificatory virtue(s). O'Meara emphasizes the relevance of the resulting "scale of virtues" to a life of continued activity—for example explicating Plotinus's denial that a "purified" soul is somehow exempt from the rightness-of-acting expected of the politically virtuous soul: rather, "reaching higher principles and different measures he will act [directly, immediately] according to these" (43, En. I,2,7).Another organizing theme as O'Meara's investigations proceed beyond Plotinus is the significance of the increasing complexities of particular Neoplatonic metaphysical systems, and so also of their moral systems - e.g. their "scales of virtue." Part I also articulates related attempts (beginning with Porphyry and Iamblichus) to articulate programs of moral and philosophical study - i.e. a related "scale of sciences." Of special note here are proposals by some Neoplatonists to divide the "practical sciences" associated on this scale with political virtuousness into legislative science(s) and judicial science (56). Implicit in the Neoplatonic scale(s) of virtue(s) was the thesis that as one progresses towards divinization "lower" virtue-osity is not transcended in the sense of lost or dismissed but rather it is included or incorporated into a higher form. Arguably, "lower" sciences are likewise not merely aids or stepping-stones towards something "higher," but genuine topoi of study and knowledge in their own right.Part II is the true heart of O'Meara's outstanding scholarly and philosophical inquiry. Here is where he fulfills his intent to discern a substantive tradition of political philosophy and to articulate its key themes and concepts. Though he associates this part of his investigation with Plato's conceit of the philosopher's return to the cave, he immediately parses this "descent" as a "divinization of political life through philosophy" (71). He articulates various Neoplatonists' approaches to questions inspired by Plato's cave allegory—e.g. Is the philosopher socially obligated to "return"? Could s/he then still be happy? (His investigation here does seem to overlook Neoplatonic conceptions of choice, volition, or will as these might pertain to such questions.) O'Meara recognizes, however, that the more fundamental link between Neoplatonic metaphysics and Neoplatonic ethical-political thought derives from Plotinus's conception "of fecundity, of an [overflowing] abundance" (74) in his highest One, and so in a soul assimilated to It. In Proclus's formulation: "that which... (shrink)

Frege believes (1) that his definition of number is (partly) arbitrary; (2) that it "makes" numbers of certain extensions; (3) that without such a definition we cannot even think or understand arithmetical propositions. this position is part of a view according to which mathematics in general involves the free construction of objects, their properties, and the very contents of mathematical propositions. frege tries to avoid excess subjectivism by the kantian device of treating alternative systems of arithmetic (e.g.) as different appearances (...) of a single realm of unstructured truths. (shrink)

Standard views of personal identity over time often hover uneasily between the subjective, first-person dimension (e. g. psychological continuity), and the objective, third-person dimension (e. g. biological continuity) of a person’s life. Since both dimensions capture something integral to personal identity, we show that neither can successfully be discarded in favor of the other. The apparent need to reconcile subjectivity and objectivity, however, presents standard views with problems both in seeking an ontological footing of, as well as epistemic evidence for, (...) personal identity. We contend that a fresh look at neutral monism offers a novel way to tackle these problems; counting on the most fundamental building blocks of reality to be ontologically neutral with regards to subjectivity and objectivity of personal identity. If the basic units of reality are, in fact, ontologically neutral – but can give rise to mental as well as physical events – these basic units of reality might account for both subjectivity and objectivity in personal identity. If this were true, it would turn out that subjectivity and objectivity are not conflictive dimensions of personal identity but rather two sides of the same coin. (shrink)

The aim of this paper is to show that doxastic compatibilists are making a strong case for genuine doxastic freedom when modelled on compatibilist free will. Unfortunately, their arguments from analogy can be used for the introduction of rather odd forms of freedom that concern our emotions, e.g. “freedom of fear” and “freedom of anger”. The author argues that this problem of overgeneralisation also concerns free will compatibilists who originally provided the weak conditions that are used by doxastic compatibilists. She (...) points out the possibilities and costs of avoiding these consequences and concludes that the standard compatibilist picture is not tenable. (shrink)

The “scarred villain” trope, where facial differences like scars signify moral corruption, is ubiquitous in film (e.g., Batman’s The Joker). Strides by advocacy groups to undermine the trope, however, suggest cinematic representations of facial differences could be improving with time. This preregistered study characterized facial differences in film across cultures (US vs. India) and time (US: 1980-2019, India: 2000-2019). Top-grossing films by country and decade were screened for characters with facial differences. We found that the scarred villain trope has actually (...) worsened with time, although in tandem with progress in also representing non-villainous characters with facial anomalies. Country of origin did not predict the presence of facial differences in villains or heroes. “Action” and “fantasy” movies were the most likely genres to depict villains with facial differences. Finally, villains’ facial differences crossed more facial subunits and were more likely to involve lips, chin, and mandible than when present in heroes. Our findings underscore the need for critical reflection on the role of cultural practices—even when seemingly innocuous—in shaping and maintaining negative biases against already stigmatized groups. (shrink)

The article suggests that in a modern context, where value pluralism is a prevailing and possibly, even ethically desirable interaction condition, institutional economics provides a more viable business ethics than behavioural business ethics, such as Kantianism or religious ethics. The article explains how the institutional economic approach to business ethics analyses morality with regard to an interaction process, and favours non-behavioural, situational intervention with incentive structures and with capital exchange. The article argues that this approach may have to be prioritised (...) over behavioural business ethics, which tends to analyse morality at the level of the individual and favours behavioural intervention with the individual’s value, norm and belief system, e.g. through ethical pedagogy, communicative techniques, etc. Quaker ethics is taken as an example of behavioural ethics. The article concludes that through the conceptual grounding of behavioural ethics in the economic approach, theoretical and practical limitations of behavioural ethics, as encountered in a modern context, can be relaxed. Probably only then can behavioural ethics still contribute to raising moral standards in interactions amongst the members (stakeholders) of a single firm, and equally, amongst (the stakeholders of) different firms. (shrink)

Barion, J. Was es heisst, ein Philosoph zu sein.--Flach, W. Die Objektivität der Erkenntnis.--Schmidt, G. Die Transzendentalität des Seingedankens.--Winterhager, E. Das Sich-Haben des Subjekts.--Hartmann, K. Analytische und kategoriale Transzendentalphilosophie.--Marx, W. Systemidee und die Problematik ihrer Begründung.--Röd, W. Transzendentalphilosophie und deskriptive Philosophie als wissenschaftliche Theorien.--Vuillemin, J. Caractères et fonctions des signes.--Ritzel, W. Zur Theorie praktischer Wissenschaft.--Hufnagel, E. Relationen--zum Streit um die pädagogische Anthropologie.--Derbolav, J. Politik und Moral.--Wolandt, G. Standpunkte der Kunstphilosophie.

We prove that a stable solvable group $G$ which satisfies $x^n = 1$ generically is of finite exponent dividing some power of $n$. Furthermore, $G$ is nilpotent-by-finite. A second result is that in a stable group of finite exponent, involutions either have big centralisers, or invert a subgroup of finite index (which hence has to be abelian).

Gyenis and Rédei (G&R) have shown that any prior _p_ on a finite algebra _A_, however chosen, significantly restricts the set of posteriors derivable from _p_ by Jeffrey conditioning (JC) on a nontrivial measurable partition (i.e., a partition consisting of members of _A_, at least one of which is not an atom of _A_). They support this claim by proving that the set of potential posteriors _not derivable_ from _p_ in this way, which they call the _Bayes blind spot of (...) p_, is large, having cardinality _c_ and normalized Lebesgue measure 1, as well as being of second Baire category for a natural metrizable topology. In the present paper, we establish results analogous to those of G&R for probability measures on any infinite sigma algebra of subsets of a countably infinite set (which requires distinctly different treatments of the topological and measure-theoretic cases). We also show, in both the finite and infinite cases, that all of the limitative results for a single prior _p_ continue to hold for the intersection of the Bayes blind spots of countably many priors. This leads us to reject the claim of G&R that the large size of blind spots in the single prior case is attributable to the limitations imposed by priors. We argue instead that it is the so-called _rigidity property_ of JC that accounts for the large size of Bayes blind spots. G&R also prove that _any_ potential posterior _q_ can be derived from a prior _p_ by at most two applications of JC on nontrivial partitions. But they remark that their particular two-stage derivation of an \(r \in BS(p)\) from _p_ is barely distinguishable from a single, complete reassessment on a trivial partition. We show, however, that there are two-stage derivations of _r_ from _p_ that require no direct assessment of the probability of any atom at either stage. Finally, in order to situate the aforementioned limitative results in the proper context, we demonstrate that a probability revision that would amount to complete reassessment within a Jeffrey evidentiary framework may arise, in a different evidentiary framework, in a way that involves no direct assessment of the probability of any atom, as, for example, in a generalization of Jeffrey’s solution to the problem of old evidence and new explanation. (shrink)

This article presents the complicated ethical dilemmas that arise in the procedures and proceedings of the Nursing Disciplinary Committee, which deals with matters of life and death (e.g. patients' rights to quality. and safe care, professional integrity and account ability, and the nurse's future). The article also describes the composition and function of the Committee, the type of case it deliberates, its limitations, and the dilemmas its members may encounter.

Romance sui generis, sua estrutura narrativa se tece a partir de contos interconectados, sempre eivados de paixões intensas a ponto de pôr em cheque não só os limites entre fantasia e fato, como também a própria noção de realidade. Sua densa trama psicológica, exuberantemente simbólica, toca aspectos profundos da existência humana. Seu título é uma referência à menção de G.W. Hegel à 'Coruja de Minerva', em que afirma que apenas quando as civilizações aproximam-se de sua decadência final, de sua derradeira (...) agonia, pode a Filosofia expressar algo de substancial conteíudo acerca de sua história, pois tais verdades mais profundas a respeito só poderiam ser capturadas ao saírem de cena ao sobrevir do "crepúsculo", ou seja, apenas em retrospecto. Portanto, a reflexão dos filósofos abordaria a história humana de maneira análoga ao olhar da coruja de caça ao sobrevoar os campos ao cair da noite. Estaria uma última 'Coruja de Minerva' já pairando sobre a humanidade neste século 21, tão obscurecido por temores e sinais apocalípticos? (shrink)

We propose an analogy between optical holography and neural behavior as a hypothesis about the physical mechanisms of neural reuse. Specifically, parameters in optical holography (frequency, amplitude, and phase of the reference beam) may provide useful analogues for understanding the role of different parameters in determining the behavior of neurons (e.g., frequency, amplitude, and phase of spiking behavior).

Despite the periodic table having been discovered by chemists half a century before the discovery of electronic structure, modern designs are invariably based on physicists’ definition of periods. This table is a chemists’ table, reverting to the phenomenal periods that led to the table’s discovery. In doing so, the position of hydrogen is clarified.

In this paper I shall venture into an area with which I am not very familiar and in which I feel far from confident; namely into phenomenology. My main motive is not to get away from standard, boring, methodological questions like those of induction and demarcation; but the conviction that a phenomenological account of the empirical basis forms a necessary complement to Popper's falsificationism. According to the latter, a scientific theory is a synthetic and universal, hence unverifiable proposition. In fact, (...) in order to be technologically useful, a scientific hypothesis must refer to future states-of-affairs; it ought therefore to remain unverified. But in order to be empirical, a theory must bear some kind of relation to factual statements. According to Popper, such a relation can only be one of potential conflict. Thus a theory T will be termed scientific if and only if T is logically incompatible with a so-called basic statement b, where b is both empirically verifiable and empirically falsifiable. In other words: T is scientific if it entails ¬b; where b, hence also ¬b, is an empirically decidable proposition. (shrink)

The Term ‘liberty’ invokes such universal respect that most modern political economists and moralists endeavour to find a conspicuous place for it somewhere in their systems or prescriptions. But in view of the innumerable senses of this term an insistence on some kind of definition prior to any discussion seems to be justified. For our present purposes attention to two particularly conflicting interpretations will be sufficient. These are sometimes called the ‘negative’ and the ‘positive’ notions of Liberty. According to the (...) ‘negative’ notion, my own liberty implies the reduction to a minimum of the deliberate interference of other human beings within the area in which I wish to act. Conversely the absence of liberty, or coercion, is regarded as undesirable because it amounts to the prevention by other persons of my doing what I want. On the other hand, the ‘positive’ sense of the word ‘liberty’ consists in the attainment of self-mastery, or, in other words, the release from the domination of ‘adverse’ influences. This ‘slavery’ from which men ‘liberate’ themselves is variously described to include slavery to ‘nature’, to ‘unbridled passions’, to ‘irrational impulses’, or simply slavery to one's ‘lower nature’. ‘Positive’ liberty is then identified with ‘self-realisation’ or an awakening into a conscious state of rationality. The fact that it is contended that such a state can often be attained only by the interference of other ‘rational’ persons who ‘liberate’ their fellow beings from their ‘irrationality’, brings this interpretation of liberty into open and striking conflict with liberty in the ‘negative’ sense. (shrink)