In their target article, O'Regan & Noë (O&N) give convincing arguments for there being no elaborate internal representation of the outside world. We show two more categories of empirical results that can easily be understood within the view that the world serves as an outside memory that is probed only when specific information is needed.

An alternative multi-joint extension to the lambda model is proposed. According to this extension, the activity of a muscle depends not only on the difference between lambda and length of that muscle, but also on the difference between lambda and length of other muscles. This 2-D extension can describe more neurophysiological experiments than the extension proposed in the target article.

The visual prediction that Nijhawan proposes cannot explain why the flash-lag effect depends on what happens after the flash. Moreover, using a visual prediction based on retinal image motion to compensate for neuronal time delays will seldom be of any use for motor control, because one normally pursues objects with which one intends to interact with ones eyes.

Stoffregen & Bardy's target article is based on the assumption that our senses' ultimate purpose is to provide us with perfect information about the outside world. We argue that it is often more important that information be available quickly than that it be perfect. Consequently our nervous system processes different aspects of information about our surrounding as separately as possible. The separation is not between the senses, but between separate aspects of our surrounding. This results in inconsistencies between judgments: sometimes (...) because different frames of reference are used. Such inconsistencies are fundamental to the way the information is picked up, however, and hence cannot be avoided with clearer instructions to the subjects. (shrink)

We argue that one can explain why the influence of illusions decreases during a movement without assuming that different visual representations are used for planning and control. The basis for this is that movements are guided by a combination of correctly perceived information about certain attributes (such as a target's position) and illusory information about other attributes (such as the direction of motion). We explain how this can automatically lead to a decreasing effect of illusions when hitting discs that move (...) in an illusory direction, and when grasping objects of which the apparent size or orientation has been changed by an illusion. (shrink)

The colors we perceive are the outcome of an attempt to meaningfully order the spectral information from the environment. These colors are not the result of a straightforward mapping of a physical property to a sensation, but arise from an interaction between our environment and our visual system. Thus, although one may infer from a surface’ reflectance characteristics that it will be perceived as “colored,” true colors only arise by virtue of the interaction of the reflected light with the eye (...) (and brain) of an observer. (shrink)

Norman tries to link the ecological and constructivist approaches to the dorsal and ventral pathways of the visual system. Such a link implies that the distinction is not only one of approach, but that different issues are studied. Norman identifies these issues as perception and action. The influence of contextual illusions is critical for Norman's arguments. We point out that fast (dorsal) actions can be fooled by contextual illusions while (ventral) perceptual judgements can be insensitive to them. We conclude that (...) both approaches can, in principle, be used to study visual information processing in both pathways. (shrink)

This article raises the question of whether bioethics qualifies as a discipline. According to a standard definition of discipline as “a field of study following specific and well-established methodological rules” bioethics is not a specific discipline as there are no explicit “well-established methodological rules.” The article investigates whether the methodological rules can be implicit, and whether bioethics can follow specific methodological rules within subdisciplines or for specific tasks. As this does not appear to be the case, the article examines whether (...) bioethics’ adherence to specific quality criteria (instead of methodological rules) or pursuing of a common goal can make it qualify as a discipline. Unfortunately, the result is negative. Then, the article scrutinizes whether referring to bioethics institutions and professional qualifications can ascertain bioethics as a discipline. However, this makes the definition of bioethics circular. The article ends by admitting that bioethics can qualify as a discipline according to broader definitions of discipline, for example, as an “area of knowledge, research and education.” However, this would reduce bioethics’ potential for demarcation and identity-building. Thus, to consolidate the discipline of bioethics and increase its impact, we should explicate and elaborate on its methodology. (shrink)

Human papillomavirus (HPV) is one of the most common sexually transmitted infections. It is a leading cause of cervical cancer in women but the virus is increasingly being linked to several other cancers in men and women alike. Since the introduction of safe and effective but also expensive vaccines, many developed countries have implemented selective vaccination programs for girls. Some however argue that these programs should be expanded to include boys, since (1) HPV constitutes non-negligible health risks for boys as (...) well and (2) protected boys will indirectly also protect girls. In this paper we approach this discussion from an ethical perspective. First, on which moral grounds can one justify not reimbursing vaccination for the male sex? We develop an ethical framework to evaluate selective vaccination programs and conclude that, in the case of HPV, efficiency needs to be balanced against non-stigmatization, non-discrimination and justice. Second, if vaccination programs were to be expanded to boys as well, do the latter then also have a moral duty to become immunized? Two arguments in favor of such a moral duty are well known in vaccination ethics: the duty not to harm others and to contribute to the public good of public health. However, we argue that these are not particularly convincing in the context of HPV. In contrast, we believe a third, more powerful but also more controversial argument is possible. In our view, the sexual mode of transmission of HPV constitutes an additional reason to believe that boys in fact may have a moral obligation to accept vaccination. (shrink)

Dieser Beitrag bietet eine umfassende Diskussion des Textes “Humanismus und Christentum” (1950) des dänischen Philosophen und Theologen Knud E. Løgstrup. Er verortet den Text in seinem geistesgeschichtlichen Kontext und analysiert seine wichtigsten Argumente wie auch seine zentrale These, der zufolge Humanismus und Christentum einen entscheidenden Grundsatz teilen, insofern beide die Ethik als “stumm“ oder “unausgesprochen“ verstehen. Darüber hinaus wird dargelegt, wie Løgstrups Text zentrale Überlegungen in dessen späteren Publikationen, besonders in dem Hauptwerk Die ethische Forderung (1956), vorwegnimmt.

Over the course of human history there appears to have been a global shift in moral values towards a broadly ‘liberal’ orientation. Huemer argues that this shift better accords with a realist than an antirealist metaethics: it is best explained by the discovery of mind-independent truths through intuition. In this article I argue, contra Huemer, that the historical data are better explained assuming the truth of moral antirealism. Realism does not fit the data as well as Huemer suggests, whereas antirealists (...) have underappreciated resources to explain the relevant historical dynamics. These resources include an appeal to socialization, to technological and economical convergences, to lessons learned from history, to changes induced by consistency reasoning and to the social function of moral norms in overcoming some of the cooperation problems that globalizing societies face. I point out that the realist’s explanans has multiple shortcomings, that the antirealist’s explanans has several explanatory virtues, and conclude that the latter provides a superior account of the historical shift towards liberal values. (shrink)

Kairos has been a key concept in medicine for millennia and is frequently understood as “the right time” in relation to treatment. In this study we scrutinize kairos in the context of diagnostics. This has become highly topical as technological developments have caused diagnostics to be performed ever earlier in the disease development. Detecting risk factors, precursors, and predictors of disease (in biomarkers, pre-disease, and pre-pre-disease) has resulted in too early diagnoses, i.e., overdiagnoses. Nonetheless, despite vast advances in science and (...) technology, diagnoses also come too late. Accordingly, timing diagnostics right is crucial. In this article we start with giving a brief overview of the etymology and general use of the concepts of kairos and diagnosis. Then we delimit kairos in diagnostics by analysing “too early” and “too late” diagnosis and by scrutinizing various phases of diagnostics. This leads us to define kairos of diagnostics as the time when there is potential for sufficient information for making a diagnosis that is most helpful for the person. It allows us to conclude that kairos is as important in diagnostics as in therapeutics. (shrink)

Based on author's thesis (Ph. D., University of Victoria, 2010).

The meta-ethical commitments of folk respondents – specifically their commitment to the objectivity of moral claims – have recently become subject to empirical scrutiny. Experimental findings suggest that people are meta-ethical pluralists: There is both inter- and intrapersonal variation with regard to people’s objectivist commitments. What meta-ethical implications, if any, do these findings have? I point out that current research does not directly address traditional meta-ethical questions: The methods used and distinctions drawn by experimenters do not perfectly match those of (...) meta-ethicists. However, I go on to argue that, in spite of this mismatch, the research findings should be of interest to moral philosophers, including meta-ethicists. Not only do these findings extend the field of moral psychology with new data and hypotheses, but they also provide tentative evidence that touches on the adequacy of theses in moral semantics and moral metaphysics. Specifically, they put pressure on argum... (shrink)

This paper is devoted to the formulation and investigation of a dynamic semantic interpretation of the language of first-order predicate logic. The resulting system, which will be referred to as ‘dynamic predicate logic’, is intended as a first step towards a compositional, non-representational theory of discourse semantics. In the last decade, various theories of discourse semantics have emerged within the paradigm of model-theoretic semantics. A common feature of these theories is a tendency to do away with the principle of compositionality, (...) a principle which, implicitly or explicitly, has dominated semantics since the days of Frege. Therefore the question naturally arises whether non-compositionality is in any way a necessary feature of discourse semantics. Since we subscribe to the interpretation of compositionality as constituting primarily a methodological principle, we consider this to be a methodological rather than an empirical question. As a consequence, the emphasis in the present paper lies on developing an alternative compositional semantics of discourse, which is empirically equivalent to its non-compositional brethren, but which differs from them in a principled methodological way. Hence, no attempts are made to improve on existing theories empirically. Nevertheless, as we indicate in section 5, the development of a compositional alternative may in the end have empirical consequences, too. First of all, it can be argued that the dynamic view on interpretation developed in this paper suggests natural and relatively easy to formulate extensions which enable one to deal with a wider range of phenomena than can be dealt with in existing theories. Moreover, the various approaches to the model-theoretic semantics of discourse that have been developed during the last decade, have constituted a ‘fresh start’ in the sense that much of what had been accomplished before was ignored, at least for a start. Of course, this is a justified strategy if one feels one is trying to develop a radically different approach to recalcitrant problems. However, there comes a time when such new approaches have to be compared with the older one, and when an assessment of the pros and cons of each has to be made. One of the main problems in semantics today, we feel, is that a semantic theory such as Montague grammar, and an approach like Kamp’s discourse representation theory, are hard to compare, let alone that it is possible to unify their insights and results.. (shrink)

Dieser Beitrag bietet eine umfassende Diskussion des Textes “Humanismus und Christentum” (1950) des dänischen Philosophen und Theologen Knud E. Løgstrup. Er verortet den Text in seinem geistesgeschichtlichen Kontext und analysiert seine wichtigsten Argumente wie auch seine zentrale These, der zufolge Humanismus und Christentum einen entscheidenden Grundsatz teilen, insofern beide die Ethik als “stumm“ oder “unausgesprochen“ verstehen. Darüber hinaus wird dargelegt, wie Løgstrups Text zentrale Überlegungen in dessen späteren Publikationen, besonders in dem Hauptwerk Die ethische Forderung (1956), vorwegnimmt.

We demonstrate how to validly quantify into hyperintensional contexts involving non-propositional attitudes like seeking, solving, calculating, worshipping, and wanting to become. We describe and apply a typed extensional logic of hyperintensions that preserves compositionality of meaning, referential transparency and substitutivity of identicals also in hyperintensional attitude contexts. We specify and prove rules for quantifying into hyperintensional contexts. These rules presuppose a rigorous method for substituting variables into hyperintensional contexts, and the method will be described. We prove the following. First, it (...) is always valid to quantify into hyperintensional attitude contexts and over hyperintensional entities. Second, factive empirical attitudes validate, furthermore, quantifying over intensions and extensions, and so do non-factive attitudes, both empirical and non-empirical , provided the entity to be quantified over exists. We focus mainly on mathematical attitudes, because they are uncontroversially hyperintensional. (shrink)

The aim of this article is to identify the strongest evolutionary debunking argument against moral realism and to assess on which empirical assumptions it relies. In the recent metaethical literature, several authors have de-emphasized the evolutionary component of EDAs against moral realism: presumably, the success or failure of these arguments is largely orthogonal to empirical issues. I argue that this claim is mistaken. First, I point out that Sharon Street’s and Michael Ruse’s EDAs both involve substantive claims about the evolution (...) of our moral judgments. Next, I argue that combining their respective evolutionary claims can help debunkers to make the best empirical case against moral realism. Some realists have argued that the very attempt to explain the contents of our endorsed moral judgments in evolutionary terms is misguided, and have sought to escape EDAs by denying their evolutionary premise. But realists who pursue this reply can still be challenged on empirical grounds: debunkers may argue that the best, scientifically informed historical explanations of our moral endorsements do not involve an appeal to mind-independent truths. I conclude, therefore, that the empirical considerations relevant for the strongest empirically driven argument against moral realism go beyond the strictly evolutionary realm; debunkers are best advised to draw upon other sources of genealogical knowledge as well. (shrink)

This important work of archaeological theory challenges us to reconsider our ideas about the nature of things, past and present, arguing that objects themselves possess a dynamic presence that we must take into account if we are to understand the world we and they inhabit.

In the debate on conscientious objection in healthcare, proponents of conscience rights often point to the imperative to protect the health professional’s moral integrity. Their opponents hold that the moral integrity argument alone can at most justify accommodation of conscientious objectors as a “moral courtesy”, as the argument is insufficient to establish a general moral right to accommodation, let alone a legal right. This text draws on political philosophy in order to argue for a legal right to accommodation. The moral (...) integrity arguments should be supplemented by the requirement to protect minority rights in liberal democracies. Citizens have a right to live in accordance with their fundamental moral convictions, and a right to equal access to employment. However, this right should not be unconditional, as that would unduly infringe on the rights of other citizens. The right must be limited to cases where the moral basis is more fundamental in a sense that all reasonable citizens in a liberal democracy should accept, such as the constitutive role of the inviolability of human life in liberal democracies. There should be a legal, yet circumscribed, right to accommodation for conscientious objectors refusing to provide healthcare services that they reasonably consider to involve the intentional killing of a human being. (shrink)

This paper presents three claims concerning boundaries, dependence and parthood. The claims are intuitively plausible, but cannot, at face value, all be true on pain of contradiction. Each of the three claims is shown to be more plausible than its converse and some solutions to the puzzle are presented.

Scholarly discourse on “disruptive technologies” has been strongly influenced by disruptive innovation theory. This theory is tailored for analyzing disruptions in markets and business. It is of limited use, however, in analyzing the broader social, moral and existential dynamics of technosocial disruption. Yet these broader dynamics should be of great scholarly concern, both in coming to terms with technological disruptions of the past and those of our current age. Technologies can disrupt social relations, institutions, epistemic paradigms, foundational concepts, values, and (...) even the nature of human cognition and experience – domains of disruption that are largely neglected in existing discourse on disruptive technologies. Accordingly, this paper seeks to reorient scholarly discussion around a broader notion of technosocial disruption. This broader notion raises three foundational questions. First, how can technosocial disruption be conceptualized in a way that clearly sets it apart from the disruptive innovation framework? Secondly, how does the notion of technosocial disruption relate to the concordant notions of “disruptor” and “disruptiveness”? Thirdly, can we advance criteria to assess the “degree of social disruptiveness” of different technologies? The paper clarifies these questions and proposes an answer to each of them. In doing so, it advances “technosocial disruption” as a key analysandum for future scholarship on the interactions between technology and society. (shrink)

This paper presents an analysis of wh-complements in Montague Grammar. We will be concerned primarily with semantics, though some remarks on syntax are made in Section 4. Questions and wh-comple ments in Montague Grammar have been studied in Hamblin (1976), Bennett (1979), Karttunen (1977) and Hauser (1978) among others. These proposals will not be discussed explicitly, but some differences with Karttunen's analysis will be pointed out along the way.

Refutation systems are formal systems for inferring the falsity of formulae. These systems can, in particular, be used to syntactically characterise logics. In this paper, we explore the close connection between refutation systems and admissible rules. We develop technical machinery to construct refutation systems, employing techniques from the study of admissible rules. Concretely, we provide a refutation system for the intermediate logics of bounded branching, known as the Gabbay–de Jongh logics. We show that this gives a characterisation of these logics (...) in terms of their admissible rules. To illustrate the technique, we also provide a refutation system for Medvedev’s logic. (shrink)

This book is an introduction to and interpretation of the philosophy of language devised by Donald Davidson over the past 25 years. The guiding intuition is that Davidson's work is best understood as an ongoing attempt to purge semantics of theoretical reifications. Seen in this light the recent attack on the notion of language itself emerges as a natural development of his Quinian scepticism towards "meanings" and his rejections of reference-based semantic theories. Linguistic understanding is, for Davidson, essentially dynamic, arising (...) only through a continuous process of theory construction and reconstruction. The result is a conception of semantics in which the notion of interpretation and not the notion of knowing a language is fundamental. In the course of his book Bjorn Ramberg provides a critical discussion of reference-based semantic theories, challenging the standard accounts of the principle of charity and elucidating the notion of radical interpretation. The final chapter on incommensurability ties in with the discussions of Kuhn's work in the philosophy of science and suggests certain links between Davidson's analytic semantics and hermeneutic theory. (shrink)

Soames's cognitive propositions are strings of acts to be performed by an agent, such as predicating a property of an individual. King takes these structured propositions to task for proliferating too easily. King's objection is based on an example that purports to show that three of Soames's propositions are really just one proposition. I translate the informally stated propositions King attributes to Soames into the intensional λ-calculus. It turns out that they are all β-equivalent to the proposition King claims Soames's (...) three propositions are identical to. I argue on philosophical grounds against identifying β-equivalent propositions. The reason is that β-conversion obliterates too many of the procedural distinctions that are central to an act-based theory such as Soames's and which are worth preserving. In fact, β-expansion allows the addition of a fifth proposition that highlights additional procedural distinctions and propositional structure. The welcome conclusion is that we have five procedurally distinct, if equivalent, propositions. (shrink)

Explores the place of intellectual virtues and vices in a social world. Chapters are divided into four sections: Foundational Issues; Individual Virtues; Collective Virtues; and Methods and Measurements.

In this paper we study the admissible rules of intermediate logics. We establish some general results on extensions of models and sets of formulas. These general results are then employed to provide a basis for the admissible rules of the Gabbay–de Jongh logics and to show that these logics have finitary unification type.

The development of ever smaller integrated circuits at the sub-micron and nanoscale—in accordance with Moore’s Law—drives the production of very small tags, smart cards, smart labels and sensors. Nanoelectronics and submicron technology supports surveillance technology which is practically invisible. I argue that one of the most urgent and immediate concerns associated with nanotechnology is privacy. Computing in the twenty-first century will not only be pervasive and ubiquitous, but also inconspicuous. If these features are not counteracted in design, they will facilitate (...) ubiquitous surveillance practices which are widely available, cheap, and intrusive. RFID technology is an instructive example of what nanotechnology has in store for privacy. (shrink)

The power of technology to transform religions, science, and political institutions has often been presented as nothing short of revolutionary. Does technology have a similarly transformative influence on societies’ morality? Scholars have not rigorously investigated the role of technology in moral revolutions, even though existing research on technomoral change suggests that this role may be considerable. In this paper, we explore what the role of technology in moral revolutions, understood as processes of radical group-level moral change, amounts to. We do (...) so by investigating four historical episodes of radical moral change in which technology plays a noteworthy role. Our case-studies illustrate the plurality of mechanisms involved in technomoral revolutions, but also suggest general patterns of technomoral change, such as technology’s capacity to stabilize and destabilize moral systems, and to make morally salient phenomena visible or invisible. We find several leads to expand and refine conceptual tools for analysing moral change, specifically by crystallizing the notions of ‘technomoral niche construction’ and ‘moral payoff mechanisms’. Coming to terms with the role of technology in radical moral change, we argue, enriches our understanding of moral revolutions, and alerts us to the depths of which technology can change our societies in wanted and unwanted ways. (shrink)

The book presents a new logical framework to capture the meaning of sentences in conversation. It is based on a richer notion of meaning than traditional approaches, and allows for an integrated treatment of statements and questions. The first part of the book presents the framework in detail, while the second demonstrates its many benefits.

In this article we discuss what we call the deliberative division of epistemic labor. We present evidence that the human tendency to engage in motivated reasoning in defense of our beliefs can facilitate the occurrence of divisions of epistemic labor in deliberations among people who disagree. We further present evidence that these divisions of epistemic labor tend to promote beliefs that are better supported by the evidence. We show that promotion of these epistemic benefits stands in tension with what extant (...) theories in epistemology take rationality to require in cases of disagreement. We argue that the epistemic benefits that result from the deliberative division of epistemic labor can provide epistemic reason to maintain confidence in cases of disagreement. We then show that the deliberative division of epistemic labor constitutes a distinct kind of epistemic dependence. (shrink)

When the likelihood ratio approach is employed for evidential reasoning in law, it is often necessary to employ subjective probabilities, which are probabilities derived from the opinions and judgement of a human. At least three concerns arise from the use of subjective probabilities in legal applications. Firstly, human beliefs concerning probabilities can be vague, ambiguous and inaccurate. Secondly, the impact of this vagueness, ambiguity and inaccuracy on the outcome of a probabilistic analysis is not necessarily fully understood. Thirdly, the provenance (...) of subjective probabilities and the associated potential sources of vagueness, ambiguity and inaccuracy tend to be poorly understood, making it difficult for the outcome of probabilistic reasoning to be explained and validated, which is crucial in legal applications. The former two concerns have been addressed by a wide body of research in AI. The latter, however, has received little attention. This paper presents a novel approach to employ argumentation to reason about probability distributions in probabilistic models. It introduces a range of argumentation schemes and corresponding sets of critical questions for the construction and validation of argument models that define sets of probability distributions. By means of an extended example, the paper demonstrates how the approach, argumentation schemes and critical questions can be employed for the development of models and their validation in legal applications of the likelihood ratio approach to evidential reasoning. (shrink)