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).

Descartes' Meditations is one of the most thoroughly analyzed of all philosophical texts. Nevertheless, central issues in Descartes' thought remain unresolved, particularly the problem of the Cartesian Circle. Most attempts to deal with that problem have weakened the force of Descartes' own doubts or weakened the goals he was seeking. In this book, Stephen I. Wagner gives Descartes' doubts their strongest force and shows how he overcomes those doubts, establishing with metaphysical certainty the existence of a non-deceiving God (...) and the truth of his clear and distinct perceptions. Wagner's innovative and thorough reading of the text clarifies a wide range of other issues that have been left unclear by previous commentaries, including the nature of the cogito discovery and the relationship between Descartes' proofs of God's existence. His book will be of great interest to scholars and upper-level students of Descartes, early modern philosophy and theology. (shrink)

Following several earlier, relatively obscure occurrences of the term in Latin and French sources, the concept of nihilism first enters the broader philosophical discussion in Europe toward the end of the eighteenth century as a critique of German idealism, above all that of Kant and Fichte. Although essential scholarship on this early history has long been available in German, it has remained largely neglected by discussions of nihilism in English. Olson’s contribution on “nihilism” in Edwards’ standard Encyclopedia of Philosophy, though (...) certainly dated, is perhaps typical. Nietzsche, of course, is presented as the most prominent historical figure, with brief mention given to Russian origins and to nineteenth-century uses of the term as a condemnation of atheism. Yet the fundamental philosophical development of nihilism in the context of German idealism receives no attention whatsoever. At least as early as 1900, German scholars had already traced the first use of the concept back to Jacobi, specifically to his influential “Circular Letter to Fichte” of 1799. However, only the most recent studies in English even begin to acknowledge this crucial early development. (shrink)

THIS PAPER PROVIDES A READING OF DESCARTES' COGITO WHICH RESOLVES THE PROBLEMS ENCOUNTERED BY THE OTHER PREVALENT ANALYSES OF HIS THOUGHT. I FIRST INDICATE THE WAYS IN WHICH THE INFERENTIAL AND PERFORMATIVE VIEWS FAIL TO ADEQUATELY EXPLICATE DESCARTES' OWN STATEMENTS REGARDING THE COGITO. I THEN SET OUT MY "GENERATIVE VIEW" AND SHOW THAT IT PROVIDES A FULLY CONSISTENT READING OF THESE SAME STATEMENTS. I CONCLUDE THAT THE GENERATIVE VIEW MORE ADEQUATELY REPRESENTS DESCARTES' INTENTIONS.

Descartes' procedure in "Meditation II" must be brought into line with his claim that "we must never ask about the existence of anything until we first understand its essence." And Descartes' "Meditation III" claim that he is aware of his mind's power to cause ideas must be grounded in a prior discovery of this power. Both demands are met by reading "Meditation II" as a progressive clarification of the nature of mind, with the investigation of the wax providing the discovery (...) of the mind's generative power. This process of discovery also provides the meanings of "thinking" and "existing" -- as "causing ideas" and "exercising causal power", respectively. Thus the discovery of the mind's nature also grounds the cogito. I provide a close reading of the wax investigation which supports this view. (shrink)

This paper spells out the implications, for Descartes's theory of ideas, of my earlier paper, "Descartes's Wax: Discovering the Nature of Mind." I show that my reading of the wax investigation provides a number of clarifications of Descartes's Meditation III discussion of ideas. My reading of Meditation III provides a ground, internal to the Meditations for Descartes's claims about objective reality, the causal laws, material falsity and the idea of God. I show that Descartes's claims and conclusions regarding these issues (...) is strengthened by the perspective I have provided. (shrink)

This chapter discusses a re-emerging topic in Cartesian scholarship—mind and body interaction. A number of thinkers, from his contemporaries onward, have maintained that Descartes' account of his two substances rules out the possibility of the interaction that he attempted to defend. Often, however, the ground for asserting this impossibility has been left less than explicit. Recent discussion has attempted to clarify the issue by asking whether there can be specified grounds within Descartes' philosophy which are sufficient to rule out mind–body (...) interaction. There are three elements of Descartes' thinking which might seem to create problems for mind–body interaction—his insistence that mind and body are absolutely distinct substances, his own restrictions on possible causal relations, and his views on the freedom of the will. Recent work has focused on the first two of these issues. The chapter's goal is to suggest that an essential element of Descartes' worldview has been overlooked in this recent discussion, and to show that once it is taken into account many of the apparent difficulties about Cartesian interaction can be resolved. (shrink)

This paper examines the significance of Anscombe’s decision to substitute the example of Excalibur for that of Nothung in section 39 of the PhilosophicalInvestigations. It argues that the substitution significantly alters the mythological background to Wittgenstein’s discussion of naming and its philosophical subliming, in which the Theatetus conception of identity, composition, and decomposition is contrasted with that of Wagner’s Ring; for Arthurian legend conceives of these matters differently again. The broader purpose of the paper is to demonstrate that these (...) mythological worlds are not dispensable ornaments to Wittgenstein’s philosophical explorations, but rather internal to his way of guiding and reorienting our reflections on proper names, personal identity, and selfhood. (shrink)

A major contribution to Descartes studies, this book provides a panorama of cutting-edge scholarship ranging widely over Descartes's own primary concerns: metaphysics, physics, and its applications. It is at once a tool for scholars and--steering clear of technical Cartesian science--an accessible resource that will delight nonspecialists. The contributors include Edwin Curley, Willis Doney, Alan Gabbey, Daniel Garber, Marjorie Grene, Gary Hatfield, Marleen Rozemond, John Schuster, Dennis Sepper, Stephen Voss, Stephen Wagner, Margaret Welson, Jean Marie Beyssade, Michelle Beyssade, (...) Michel Henry, Evert van Leeuwen, Jean-Luc Marion, Genevieve Rodis-Lewis, and Jean-Pierre Seris. Combining new textual sensitivity with attentiveness to history, they represent the best established scholars and most exciting new voices, including both English speaking and newly-translated writers. Part I examines the foundations of Descartes's philosophy: Cartesian certainty; the phenomenology of the cogito and its modulations in the passions; and the defensibility and comprehensibility of the Cartesian God. The second part examines Descartes's groundbreaking metaphysics: mind's distinctness from and interaction with body; imagination; perception; and language. Part III examines Cartesian science: the revolutionary rhetoric of the Rules and the Discourse; the metaphysical foundations of physics; the interplay of rationalism and empiricism; the mechanics and human biology that flow from Descartes's physics. (shrink)

The paper analyzes the incompatibility of Evolutionary Epistemology of Theories (EET) with Charles Darwin’s theory of evolution. The argument consists of four parts, each addressing a specific problem with EET and offering examples. Firstly, advocates of EET frequently misapply Darwin’s theory by asserting that evolution is teleological, which is at odds with Darwinism. Secondly, the “universal Darwinism” underlying EET is inconsistent with the relativism present in Darwin’s theory. Thirdly, because of the relativistic character of Darwin’s theory, philosophies that appeal to (...) it need to provide additional justification for using Darwin’s ideas outside of biology, which EET fails to do. Finally, the paper demonstrates that the Darwinocentric historiography proposed by EET underappreciates neo-Lamarckism, whose model of evolution is closer to that used in EET. (shrink)

This is a unique book, drawing together the profound insights of Eastern philosophy (Advaita Vedanta), Western depth-psychology (Jungian), and spirituality (Ignatian) as applied to decision-making. Mention is made of Plato, C. G. Jung, Ira Progoff, Viktor Frankl, and Bernard Lonergan, amongst others. Powerful and practical tools and techniques for making wise decisions are offered. There are sections on Descartes's famous square, the ego and the Self, the I Ching and synchronicity, archetypes, neuroscience and the triune brain, biases and blind spots (...) which can derail decision-making, together with chapters on creativity, the "aha" experience, and the Enneagram with its nine decision-making styles. Dr. Costello is at pains to point out that heart (emotions), head (reason), and hands (action/doing) must be integrated before effective decision-making can take place and bear fruition. (shrink)

The red tape and delays around research ethics and governance approvals frequently frustrate researchers yet, as the lesser of two evils, are largely accepted as unavoidable. Here we quantify aspects of the research ethics and governance approvals for one interview- and questionnaire-based study conducted in England which used the National Health Service procedures and the electronic Integrated Research Application System. We demonstrate the enormous impact of existing approvals processes on costs of studies, including opportunity costs to focus on the substantive (...) research, and suggest directions for radical system change. We have recorded 491 exchanges with 89 individuals involved in research ethics and governance approvals, generating 193 pages of email text excluding attachments. These are conservative estimates. The exchanges were conducted outside IRAS, expected to be the platform where all necessary documents are provided and questions addressed. Importantly, the figures exclude the actual work of preparing the ethics documentation. We propose six areas of work to enable system change: 1. Support the development of a broad range of customised research ethics and governance templates to complement generic, typically clinical trials orientated, ones; 2. Develop more sophisticated and flexible frameworks for study classification; 3. Link with associated processes for assessment, feedback, monitoring and reporting, such as ones involving funders and patient and public involvement groups; 4. Invest in a new generation IT infrastructure; 5. Enhance system capacity through increasing online reviewer participation and training; and 6. Encourage researchers to quantify the approvals processes for their studies. Ethics and governance approvals are burdensome for historical reasons and not because of the nature of the task. There are many opportunities to improve their efficiency and analytic depth in an age of innovation, increased connectivity and distributed working. If we continue to work under current systems, we are perpetuating, paradoxically, an unethical system of research approvals by virtue of its wastefulness and impoverished ethical debate. (shrink)

This paper examines the way Charles Darwin applied his domestic breeding analogy to the practical workings of species evolution: that application, it is argued, centered on Darwin's distinction between methodical and unconscious selection. Methodical selection, which entailed pairing particular individuals for mating purposes, represented conditions of strict geographic isolation, obviously useful for species multiplication (speciation). By contrast, unconscious selection represented an open landmass with a large breeding population. Yet Darwin held that this latter scenario, which often would include multiple ecological (...) subdistricts and thus partial isolation, was better suited for speciation than were isolated conditions. At the same time, many passages in Darwin's writings that apparently portrayed phyletic evolution exclusively (these including references to unconscious selection), actually applied to speciation as well, for phyletic change in a single district could constitute a local manifestation of a larger common-descent pattern. This generic use of "phyletic" change was reflected in Darwin's deployment of the unconscious selection analogy in his published writings as well as in his dispute with Moritz Wagner over the necessity of geographic isolation for speciation. We can thus understand Darwin's otherwise puzzling declaration in The Origin of Species that unconscious selection was 'more important' than the methodical approach. (shrink)

Although it can hardly be denied that BT is—as its first paragraph declares—centrally concerned to advance the science of aesthetics by coming to grips with the essence of Attic tragedy, it should not be forgotten that its author also characterizes the book (in its foreword) as being in constant conversation with Richard Wagner, and hence as a continuation of their joint struggle properly to grasp the true purpose and full value of Wagnerian opera, understood as aspiring to the status (...) of a Gesamtkunstwerk. One might say that BT is an attempt to make sense of the Wagner circle’s habit of referring to their leader as Aeschylus—to ground Nietzsche’s intuition that the work of both men embodies an enigmatic sublimity .. (shrink)

Reviews : Zygmunt Bauman, Intimations of Postmodernity ; Steven Seidman and David G. Wagner, Postmodernism and Social Theory ; Stephen Crook, Jan Pakulski and Malcolm Wa ters, Postmodernization: Change in Advanced Society ; Gianni Vattimo, The End of Modernity—Nihilism and Hermeneutics in Post-modern Culture.

In Squaring the Circle in Descartes’ Meditations, Stephen Wagner aims to show that Descartes’ project in the Meditations is best understood as a ‘strong validation of reason’ i.e., as proving in a non-circular way that human reason is a reliable, truth-conducive faculty. For such an enterprise to qualify as a ‘strong’ validation, Wagner contends, skeptical doubt must be given its strongest force. The most stringent doubt available in the Meditations is the deceiving God. To rule out the (...) possibility that an omnipotent God created humans so that their best functioning cognitive faculties provide misleading information about what the world is like, Descartes must prove that a non-deceiving God exists. Furthermore, only a non-circular proof will count as a ‘validation.’ Wagner spells out the requirements of non-circularity as involving a proof for God’s existence that is not deductive, does not simply achieve a clear and distinct perception of God’s existence, and proceeds on the basis of perceptions that remain true even when the reasons underlying them are not attended to any longer by the meditator. (shrink)

This volume addresses the interdependencies between visual technologies and epistemology with regard to our perception of the medical body. It explores the relationships between the imagination, the body, and concrete forms of visual representations: Ranging from the Renaissance paradigm of anatomy, to Foucault's "birth of the clinic" and the institutionalised construction of a "medical gaze"; from "visual" archives of madness, psychiatric art collections, the politicisation and economisation of the body, to the post-human in mass media representations. Contributions to this volume (...) investigate medical bodies as historical, technological, and political constructs, constituted where knowledge formation and visual cultures intersect. Contributors are: Axel Fliethmann, Michael Hau, Birgit Lang, Carolyn Lau, Heikki Lempa, Stefanie Lenk, Joanna Madloch, Barry Murnane, Jill Redner, Claudia Stein, Elizabeth Stephens, Corinna Wagner, and Christiane Weller. (shrink)

Stephen Tracy's neat demonstration that IG I3 35—authorizing the building of a temple and appointment of a priestess for Athena Nike—was cut by the man responsible for the Promachos accounts at first seemed decisive for the traditional c. 448 B.C. against my radical down-dating. Ira Mark then argued that this decree provided for the naiskos and altar of his Stage III in the 440s: the marble temple belonged to Stage IV over twenty years later. Despite these two powerful interventions (...) the matter is not closed. David Gill has, I fancy, convincingly refuted Mark on archaeological and architectural grounds. And there is still more to be said from the epigraphic angle. IG I 36, cut on the back of the stele, looks like a delayed rider to 35. But just how delayed was it? It arranged for the regular payment of the priestess's salary by the kolakretai in office in the month Thargelion. On the traditional view the gap would be close to a quarter of a century, since 36 is firmly dated 424/3 B.C. This is quite extraordinary, though reasons have been found for it. More serious perhaps is some neglected epigraphic evidence. We have eighteen other examples in fifth-century Attic epigraphy where decrees are followed on the same stone by other texts; but virtually all the gaps are short, never more than a few years. The relevant texts are IG I 4, 11/12, 41, 42/43, 52 A–B, 59, 61, 66, 68, 71, 72, 73, 89, 93, 101, 127/II1, 156, 1454. It is true that 42/43 are dated c. 445–442 and c. 435–427 B.C. in IG I, but this is quite arbitrary. (shrink)

Many topics have not been covered, in most cases because I don't know quite what to say about them. Would it be possible to add a decidability predicate to the language? What about stronger connectives, like exclusion negation or Lukasiewicz implication? Would an expanded language do better at expressing its own semantics? Would it contain new and more terrible paradoxes? Can the account be supplemented with a workable notion of inherent truth (see note 36)? In what sense does stage semantics (...) lie “between” fixed point and stability semantics? In what sense, exactly, are our semantical rules inconsistent? In what sense, if any, does their inconsistency resolve the problem of the paradoxes?The ideals of strength, grounding, and closure together define an intuitively appealing conception of truth. Nothing would be gained by insisting that it was the intuitive conception of truth, and in fact recent developments make me wonder whether such a thing exists. However that may be, until the alternatives are better understood it would be foolish to attempt to decide between them. Truth gives up her secrets slowly and grudgingly, and loves to confound our presumptions. (shrink)

This chapter explores some fundamental consequences of the correspondence between physical process and computations. Most physical questions may be answerable only through irreducible amounts of computation. Those that concern idealized limits of infinite time, volume, or numerical precision can require arbitrarily long computations, and so be considered formally undecidable. The behavior of a physical system may always be calculated by simulating explicitly each step in its evolution. Much of theoretical physics has, however, been concerned with devising shorter methods of calculation (...) that reproduce the outcome without tracing each step. Computational irreducibility is common among the systems investigated in mathematics and computation theory, but it may well be the exception rather than the rule, since most physical questions may be answerable only through irreducible amounts of computation. (shrink)

This article demonstrates that there is no free will problem in forensic psychiatry by showing that free will or its lack is not a criterion for any legal doctrine and it is not an underlying general foundation for legal responsibility doctrines and practices. There is a genuine metaphysical free will problem, but the article explains why it is not relevant to forensic practice. Forensic practitioners are urged to avoid all usage of free will in their forensic thinking and work product (...) because it is irrelevant and spawns confusion. (shrink)

One widely held view of prenatal screening is that its foremost aim is, or should be, to enable reproductive choice; this is the Pure Choice view. The article critiques this position by comparing it with an alternative: Public Health Pluralism. It is argued that there are good reasons to prefer the latter, including the following. Public Health Pluralism does not, as is often supposed, render PNS more vulnerable to eugenics-objections. The Pure Choice view, if followed through to its logical conclusions, (...) may have unpalatable implications, such as extending choice well beyond health screening. Any sensible version of Public Health Pluralism will be capable of taking on board the moral seriousness of abortion and will advocate, where practicable, alternative means of reducing the prevalence of disease and disability. Public Health Pluralism is at least as well-equipped as the Pure Choice model to deal with autonomy and consent issues. (shrink)

This paper explains how the notion of justification transmission can be used to ground a notion of knowledge transmission. It then explains how transmission theories can characterise schoolteacher cases, which have prominently been presented as counterexamples to transmission theories.

First Published in 2005. Routledge is an imprint of Taylor & Francis, an informa company.

Ernest Sosa has recently argued that the knowledge we get from instruments and the knowledge we get from testimony is similar in important ways. Most importantly, the justification that supports it is similar in kind – both instrumental justification and justification from testimony is to be understood in terms of reliability. I argue that Sosa’s theory is problematic. Specifically, I argue that we can take certain attitudes towards people that we cannot coherently take towards instruments. This, I argue, grounds a (...) distinction between the kind of justification that testimony can make available and the kind of justification that instruments can make available. The result is that reliability cannot provide a complete explanation of the justification that testimony makes available. (shrink)

A number of prominent nonconsequentialists support the thesis that we can wrong the dead by violating their moral claims. In contrast, this study suggests that the arguments offered by Thomson, Scanlon, Dworkin, Feinberg and others do not warrant posthumous rights because having claim-grounding interests requires an entity to have the capacity to experience significance. If dead people don't have this capacity, there is no reason to attribute claims to them. Raising doubts about prominent hypothetical examples of ‘no-effect injury’, the study (...) concludes that nonconsequentialists should consider adopting an error theory regarding posthumous claims, and suggests two alternative explanations of the relevant moral domains. (shrink)

Critics of survival research often claim that the survival hypothesis is conceptually problematic at best, and literally incoherent at worst. The guiding intuition behind their skepticism is that there’s an essential link between the concept of a person (or personality or experience) and physical embodiment. Thus (they argue), since by hypothesis postmortem individuals such as ostensible mediumistic communicators have no physical body, there’s something wrong with the very idea of a postmortem person, personality or experience. However, critics can’t simply beg (...) the question and assert that physical embodiment is essential to personhood, personality, or experience, because the evidence suggesting survival is a prima facie challenge to the contrary. On the other hand, defenders of ostensible mediumistic communication need to explain how postmortem awareness and knowledge of the current physical world can occur without a physical body that experiences the world and represents it accurately enough to ground veridical postmortem reports. This paper will fi rst consider why survivalists face potentially serious problems in trying to make sense of apparent postmortem perception. Then it will consider a plausible—and arguably the only—way to deal with the issues. However, that solution turns out to be a double-edged sword. Ironically, the best way to deal with the problem of perspectival postmortem awareness may render the survival hypothesis gratuitous. (shrink)