ABSTRACT In this paper we attempt to sharpen and to provide an answer to the question of when human beings first become conscious. Since it is relatively uncontentious that a capacity for raw sensation precedes and underpins all more sophisticated mental capacities, our question is tantamount to asking when human beings first have experiences with sensational content. Two interconnected features of our argument are crucial. First, we argue that experiences with sensational content are supervenient on facts about electrical activity in (...) the cerebral cortex which can be ascertained through EEG readings. Second, we isolate from other notions of a‘functioning brain’that which is required to underpin the view that a cortex is functioning in a way which could give rise to rudimentary conscious experiences. We investigate the development in the human fetus of the anatomical and chemical pathways which underpin (immature) cortical activity and the growth and maturation of the electrical circuitry specifically associated with sensational content in adult experience. We conclude (tentatively) that a fetus becomes conscious at about 30 to 35 weeks after conception; an answer based on a careful analysis of EEG readings at various stages of cortical development. Finally, we survey the possible ethical ramifications of our answer. (shrink)

In this paper we attempt to sharpen and to provide an answer to the question of when human beings first become conscious. Since it is relatively uncontentious that a capacity for raw sensation precedes and underpins all more sophisticated mental capacities, our question is tantamount to asking when human beings first have experiences with sensational content. Two interconnected features of our argument are crucial. First, we argue that experiences with sensational content are supervenient on facts about electrical activity in the (...) cerebral cortex which can be ascertained through EEG readings. Second, we isolate from other notions of a‘functioning brain’that which is required to underpin the view that a cortex is functioning in a way which could give rise to rudimentary conscious experiences. We investigate the development in the human fetus of the anatomical and chemical pathways which underpin cortical activity and the growth and maturation of the electrical circuitry specifically associated with sensational content in adult experience. We conclude that a fetus becomes conscious at about 30 to 35 weeks after conception; an answer based on a careful analysis of EEG readings at various stages of cortical development. Finally, we survey the possible ethical ramifications of our answer. (shrink)

This article explores the tension between an understanding of Europe as purveyor of a certain kind of cultural, spiritual or religious identity and the more or less bureaucratic project of European construction undertaken in its name. The central axis of this tension is the theoretical relationship between identity and legitimacy. The classical modern problem of nation-state building involves integrating the legitimating force of collective identity into the institutions of the state. How does the project of European construction respond to an (...) analogous challenge? This article develops this theoretical question by turning to two canonical positions concerning the relation between institutional legitimacy and its cultural, spiritual or religious under-pinnings - Montesquieu and Weber. It then returns to the founding documents of the EU in order to interrogate the legitimacy of the EU in light of the concept of European identity. (shrink)

The potential use, relevance, and application of AI and other technologies in the democratic process may be obvious to some. However, technological innovation and, even, its consideration may face an intuitive push-back in the form of algorithm aversion (Dietvorst et al. J Exp Psychol 144(1):114–126, 2015). In this paper, I confront this intuition and suggest that a more ‘extreme’ form of technological change in the democratic process does not necessarily result in a worse outcome in terms of the fundamental concepts (...) of democracy and the Rule of Law. To provoke further consideration and illustrate that initial intuitions regarding democratic innovation may not always be accurate, I pose and explore four ways that AI and other forms of technology could be used to augment the representative democratic process. The augmentations range from voting online to the wholesale replacement of the legislature’s human representatives with algorithms. After first noting the intuition that less invasive forms of augmented democracy may be less objectionable than more extreme forms, I go on to critically assess whether the augmentation of existing systems satisfies or enhances ideas associated with democracy and the Rule of Law (provided by Dahl and Fuller). By imagining a (not too far-fetched) future in a (not too far-removed) democratic society, my conclusion is that, when it comes to democracy and the Rule of Law, intuitions regarding technology may lead us astray. (shrink)

This paper addresses a recent wave of criticisms of liberal peacebuilding operations. We decompose the critics’ argument into two steps, one which offers a diagnosis of what goes wrong when things go wrong in peacebuilding operations, and a second, which argues on the basis of the first step that there is some deep principled flaw in the very idea of liberal peacebuilding. We show that the criticism launched in the argument’s first step is valid and important, but that the second (...) step by no means follows. Drawing a connection between liberal peacebuilding and humanitarian intervention, we argue that the problems that the critics point to are in fact best addressed within the framework of liberal internationalism itself. Further, we argue that the development of the notion of human security marks a dawning awareness within liberal internationalism of the kinds of problems that the critics point to, however difficult it may still be to embody these ideas in practice. (shrink)

Biobanks are increasingly being created specifically for research purposes. Concomitantly, we are seeing significant and evolving shifts in research ethics in relation to biobanking. Three discrete shifts are identified in this article. The first extends the ethical focus beyond the protection of human subjects to the promotion of broader community benefits of research utilizing biobanked resources, and an expectation that these benefits will be shared. The second involves the evolution of the traditional consent paradigm for future research uses of biobanks (...) resources that are not in contemplation at the time of donation. The third involves a move away from single project management to more dynamic governance accountability to research participants and the public. These shifts may take different local and institutional forms but share common recognizable elements. (shrink)

This is the verbatim manuscript of a paper which has circulated underground for close to thirty years, reaching a metethical conclusion close to J. L. Mackie’s by a somewhat different route.

Previous research has shown that short-term fasting in healthy individuals is associated with changes in risky decision-making. The current experiment was designed to examine the influence of short-term fasting in healthy individuals on four types of impulsivity: reflection impulsivity, risky decision-making, delay aversion, and action inhibition. Participants were tested twice, once when fasted for 20 hours, and once when satiated. Participants demonstrated impaired action inhibition when fasted; committing significantly more errors of commission during a food-related Affective Shifting Task. Participants also (...) displayed decreased reflection impulsivity when fasted, opening significantly more boxes during the Information Sampling Task (IST). There were no significant differences in performance between fasted and satiated sessions for risky decision-making or delay aversion. These findings may have implications for understanding eating disorders such as Bulimia Nervosa (BN). Although BN has been characterised as a disorder of poor impulse control, inconsistent findings when comparing individuals with BN and healthy individuals on behavioural measures of impulsivity question this characterisation. Since individuals with BN undergo periods of short-term fasting, the inconsistent findings could be due to differences in the levels of satiation of participants. The current results indicate that fasting can affect performance on the IST, a measure of impulsivity previously studied in BN, whilst performance on other impulsivity measures were unaffected. However, the results from the IST were contrary to the original hypothesis and should be replicated before specific conclusions can be made. (shrink)

Background Policy decisions about childhood vaccination require consideration of multiple, sometimes conflicting, public health and ethical imperatives. Examples of these decisions are whether vaccination should be mandatory and, if so, whether to allow for non-medical exemptions. In this article we argue that these policy decisions go beyond typical public health mandates and therefore require democratic input.Methods We report on the design, implementation, and results of a deliberative public forum convened over four days in Ontario, Canada, on the topic of childhood (...) vaccination.Results 25 participants completed all four days of deliberation and collectively developed 20 policy recommendations on issues relating to mandatory vaccinations and exemptions, communication about vaccines and vaccination, and AEFI (adverse events following immunization) compensation and reporting. Notable recommendations include unanimous support for mandatory childhood vaccination in Ontario, the need for broad educational communication about vaccination, and the development of a no-fault compensation scheme for AEFIs. There was persistent disagreement among deliberants about the form of exemptions from vaccination (conscience, religious beliefs) that should be permissible, as well as appropriate consequences if parents do not vaccinate their children.Conclusions We conclude that conducting deliberative democratic processes on topics that are polarizing and controversial is viable and should be further developed and implemented to support democratically legitimate and trustworthy policy about childhood vaccination. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:For More than One Voice: Toward a Philosophy of Vocal ExpressionSarah K. Burgess and Stuart J. MurrayFor More than One Voice: Toward a Philosophy of Vocal Expression. Adriana Cavarero. Trans. Paul A. Kottman. Stanford: Stanford University Press, 2005. Pp. 262. $65.00, hardcover; $24.95, paperback.Adriana Cavarero's most recent book, For More than One Voice, offers the reader a critique of Western metaphysics that challenges the hegemony of speech's (...) relation to thought within politics. Revisiting Aristotle's Politics, Cavarero examines the famous definition of man as "zoon logon echon"—usually translated as "rational animal." She is critical of the tradition that renders logos here as "reason" or "rationality," modeled on the abstract and disembodied Platonic idea. Reading the Politics alongside the Poetics, she brings politics into a distinctly rhetorical sphere, and therefore figures logos as "phone semantike." In this light, man is a "speaking animal," an animal who speaks with a voice (phone) that is meaningful (semantike—an adjectival form that qualifies the voice itself). Cavarero's argument is that voice and meaning—phonic and semantic—must be sharply distinguished. The history of Western philosophy, she contends, has effaced this vital difference and focused instead on speech as a unitary phenomenon in which the vocalic and the semantic are always already joined as meaningful signification. In this way, the singularity of the vocalic itself has been elided in favor of speech that strongly privileges meaning. She therefore wishes to deliver us from language, as it were, through a recuperation of the force of the vocalic, the acoustic, the resonant and sonorous auditory quality of phone.Absent in the history of Western philosophy, this sonorous aspect of the vocalic stands as a corrective to our logocentric metaphysical tradition that singularly values the visual over the acoustic, semantic content over vocal utterances, and an abstract, anonymous "what" over a particular, embodied "who." Cavarero claims that the vocalic is an "anti-metaphysical" force that exceeds and challenges signification. In other words, the vocalic immediately communicates the uniqueness of the speaker without recourse to the signifying content of his or her speech. The voice is essentially relational—a relation that is described as "the condition of every communication.... the communicability of the communicable, or the significance of signification" (29). Indeed, for Cavarero the voice is that which "precedes, generates, and exceeds verbal communication" [End Page 166] (29–30). In this way, remarkably, Cavarero refigures the voice as a presymbolic origin that is both temporally and ontologically prior to signification, as that which is a condition of possibility for signification, and as that which is never exhausted by any signifying speech act as such.The voice is the expression of one unique, embodied individual to another. This expression, a "reciprocal invocation" founded in the sonorous, rhythmic, and resonant materiality of the voice, constitutes a "duet," a musical exchange of voices in and through which individuals mutually invoke one another. Cavarero resists inscribing such a relation within the symbolic realm; yet for her this relation is a "wordless language" that takes place in the paradigmatic scene between mother and infant. Here, in this originary scene, there is not yet the movement of language or speech as such, but the rhythm and cadence of demand and response—the voices of mother and infant that invoke one another. Drawing on Hélène Cixous's and Julia Kristeva's well-known work on the maternal chora, Cavarero demonstrates that the cadence of the "la-la melody" exchanged between mother and infant "configure[s] a reciprocal dependence" (170) that takes a structural form in the movement between demand and response.For Cavarero, the "scene of infancy" enjoys a primacy: it is both ontologically and chronologically prior to the institution of language and law. The maternal chora is figured as that which invisibly underwrites what will be understood as the law of the father—a law that is said to mark the inauguration of language. But if the law of the father is rational and semantic, the maternal should not be conceived as simply irrational and pure sound. For Cavarero, the maternal vocalic demonstrates its own reason through its rhythmic and musical resonance... (shrink)

THE CENTRALITY OF "SYMPATHY" to Adam Smith's Theory of Moral Sentiments points to the centrality of love in the book. While Smith delineates a somewhat unusual, technical sense of "sympathy", his actual use of the term frequently slips into its more ordinary sense of "compassion" or affectionate fellow feeling. This no doubt intentional equivocation on Smith's part helps suffuse the book with these themes, to the point that, without much exaggeration, one could say that the Theory of Moral Sentiments is (...) generally about love: our need for love and sympathy, love as friendship, self-love, the love of praise and praiseworthiness, the love of beauty. Even in the Wealth of Nations, our loves are thought to be very important in explaining our behavior. Smith is unusual among modern moral philosophers in according so central a place to love in this broad sense, although of course Christianity made love a central theme in reflection on ethical life, and philosophers such as Hutcheson made benevolence a key virtue in their ethical systems. However, it is not our purpose to examine Smith's critique of Hutcheson or indeed of any of his predecessors. Rather we aim in this paper to reflect on his treatment of this topic. We shall do so in part by means of comparisons with Aristotle and Plato, first with respect to friendship and then with respect to love generally. Smith's writing is replete with classical references, raising the issue of the degree to which his thought is "ancient" or "modern." Friendship is arguably the pinnacle of social relations for the ancients, and thus it provides us with a useful device for determining the degree to which Smith's thought embodies classical moral and philosophical principles. The subtlety of Smith's interweaving of traditions will become visible as we reflect not just on the ways Smith's thought exhibits classical conceptions of friendship and love, but also on the ways he departs from them. For in at least one important respect, love is a closed book from Smith's standpoint, and thus, as it turns out, also at odds with classical friendship. (shrink)

This article traces the continuities in Pocock's work from his early exploration of the 'common law mind' to his recent work calling for a rethinking of English history and an appreciation of its British context. His work is understood here as the product of perspectives available to him as a New Zealander made aware by his own history of the central roles in all human history played by the movement of people across continents and (especially) across oceans, and by the (...) ways in which different cultures situate themselves in time. Pocock's exploration of the history of 'political thought' has, indeed, often been concerned most with that form of political thinking and identity formation that was rooted in a society's understanding of its own past. This is the key continuity explored in the article. (shrink)

In the opening chapter of the Iudicium de Dinarcho Dionysius quotes a passage from the Περì μωνμων of Demetrius Magnes, mat the end of which come the words δ λξις ςτ το Δεινρχου κυρως θικ πθος κινοσα σχεδòν τ πικρí μóνον καì τ τóν το Δημοσθθενικο χαρακτρος λειπομνη το δ πιθανο καì κυρíιυ μηδν νδονσα. [I have deliberately omitted all punctuation marks, because the punctuation of this sentence is still doubtful, though I hope to suggest a possible interpretation of its (...) meaning at the end of this article.] Now there is nothing in this sentence or in the words preceding it to indicate beyond all possibility of doubt the precise meaning ofκυρíως θικ. And in such circumstances, to allow free play to personal prejudices regarding the significance of thephrase is more than dangerous. The whole problem of θικ λξις has been treated too cursorily. If one mentions the phrase to a non-professional student of Greek, who, however, has some acquaintance with the Attic orators, he immediately replies: ‘I suppose you mean the sort of thing you meet in Lysias.’ And he is to beexcused, because, after all, that is the predominant meaning of the term. But it has other senses, and therefore one must fight shy of vague statements like that of Finke, who, after quoting the above lines, comment: ‘Demetrius Magnus attribuit ei τν κυρíαν λξιν qua non sit Demosthene inferior’; or of Burgess, who enumerates qualities, ideas, and topics ‘of special value to the epideictic and court orators, ’ among which appears θοποια which he merely translates ‘impersonation or delineation of character, ’ without offering any further comment. Sandys talks of ‘the ethical warmth of colouring, by which the dullest details are lit up with a fresh life and interest.’ Gromska is even more vague (and seems almost to confuse θς and χαρακτρ: ‘Grammatici antiqui, qui de Hyperide tractabant, de eloquentiae eius genere disputabant, orationum Hyperidearum compositionem et θς respicientes, i.e. quantum in arte rhetorica et oratoria valeret, examinantes.’ In the hope, therefore, of being able to represent the difficulty inherent in these lines, and of attempting to remove it, or at any rate to shed a broader beam of light upon it than has been shed hitherto, I propose to review very briefly the fluctuations of meaning in the life of this phrase and its equivalents, as we find them used in the critical writings of the Greek philosophers and rhetoricians. (shrink)

The fossil record plays a key role in reconstructing deep evolutionary relationships through its documentation of the early diverging stem groups leading to extant phyla. In the middle Cambrian Burgess Shale, two famously problematic worms, Odontogriphus and Wiwaxia, have recently been reinterpreted as stem‐group molluscs based on their shared expression of a putative radula and putative ctenidia in Odontogriphus.1 More detailed analysis of these fossil structures, however, reveals pronounced anatomical and histological discrepancies with molluscan analogues, such that they are (...) more reliably interpreted as primitive features of the superphylum Lophotrochozoa. In the absence of any obviously derived characters, Odontogriphus could be placed in the stem group of the Lophotrochozoa or on the stem of any of its constituent phyla, whereas the dorsal covering of chaetae in Wiwaxia identifies it as a stem‐group polychaete. Despite their close relationship, these two jawed, segmented worms could conceivably represent the early stages of two separate phyla. BioEssays 28: 1161–1166, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

The EDPS Ethics Advisory Group (EAG) has carried out its work against the backdrop of two significant social-political moments: a growing interest in ethical issues, both in the public and in the private spheres and the imminent entry into force of the General Data Protection Regulation (GDPR) in May 2018. For some, this may nourish a perception that the work of the EAG represents a challenge to data protection professionals, particularly to lawyers in the field, as well as to companies (...) struggling to adapt their processes and routines to the requirements of the GDPR. What is the purpose of a report on digital ethics, if the GDPR already provides all regulatory requirements to protect European citizens with regard to the processing of their personal data? Does the existence of this EAG mean that a new normative ethics of data protection will be expected to fill regulatory gaps in data protection law with more flexible, and thus less easily enforceable ethical rules? Does the work of the EAG signal a weakening of the foundation of legal doctrine, such as the rule of law, the theory of justice, or the fundamental values supporting human rights, and a strengthening of a more cultural approach to data protection? Not at all. The reflections of the EAG contained in this report are not intended as the continuation of policy by other means. It neither supersedes nor supplements the law or the work of legal practitioners. Its aims and means are different. On the one hand, the report seeks to map and analyse current and future paradigm shifts which are characterised by a general shift from analogue experience of human life to a digital one. On the other hand, and in light of this shift, it seeks to re-evaluate our understanding of the fundamental values most crucial to the well-being of people, those taken for granted in a data-driven society and those most at risk. The objective of this report is thus not to generate definitive answers, nor to articulate new norms for present and future digital societies but to identify and describe the most crucial questions for the urgent conversation to come. This requires a conversation between legislators and data protection experts, but also society at large - because the issues identified in this report concern us all, not only as citizens but also as individuals. They concern us in our daily lives, whether at home or at work and there isn’t a place we could travel to where they would cease to concern us as members of the human species. (shrink)

Recoge: 1. Crisis as historical specificity -- 2. The history of science as the history of crisis.

While we are commonly told that the distinctive method of mathematics is rigorous proof, and that the special topic of mathematics is abstract structure, there has been no agreement among mathematicians, logicians, or philosophers as to just what either of these assertions means. John P. Burgess clarifies the nature of mathematical rigor and of mathematical structure, and above all of the relation between the two, taking into account some of the latest developments in mathematics, including the rise of experimental (...) mathematics on the one hand and computerized formal proofs on the other hand. Along the way, a great many historical developments in mathematics, philosophy, and logic are surveyed. Yet very little in the way of background knowledge on the part of the reader is presupposed. (shrink)

Conceptual engineering and conceptual ethics are branches of philosophy concerned with questions about how to assess and ameliorate our representational devices (such as concepts and words). It's a part of philosophy concerned with questions about which concepts we should use (and why), how concepts can be improved, when concepts should be abandoned, and how proposals for amelioration can be implemented. Central parts of the history of philosophy have engaged with these issues, but the focus of this volume is on applications (...) to work in contemporary philosophy of language and mind, epistemology, gender and race theory, ethics, philosophy of science, and philosophical logic. This is the first volume devoted entirely to conceptual engineering and conceptual ethics. The volume explores the possibilities, benefits, problems, and applications of conceptual engineering and conceptual ethics. It consists of twenty chapters written by leading philosophers. (shrink)

BURGESS J and PURKIS ME. Nursing Inquiry 2010; 17: 297–308 The power and politics of collaboration in nurse practitioner role developmentThis health services study employed participatory action research to engage nurse practitioners (NPs) from two health authorities in British Columbia, Canada, to examine the research question: How does collaboration advance NP role integration within primary health‐care? The inquiry was significant and timely because the NP role was recently introduced into the province, supported by passage of legislation and regulation and (...) introduction of graduate education programs. In separate and concurrent inquiry groups, the NPs discussed their practice patterns, role development progress and understanding of collaboration and role integration. The inquiry revealed the political nature of the NP role and the extent to which NPs relied on collaborative relations at all levels of the health system to advance role integration. Given that NP role development is still at an early stage in this province, as well as other provinces in Canada, this study provides important insights into the power and politics of role development, and offers direction for future role advancement. (shrink)

This volume reprints a dozen of the author’s papers, most with substantial postscripts, and adds one new one. The bulk of the material is on topics in philosophy of language, but there are also two papers on philosophy of mathematics written after the appearance of the author’s collected papers on that subject, and one on epistemology. As to the substance of Field’s contributions, limitations of space preclude doing much more below than indicating the range of issues addressed, and the general (...) orientation taken towards them. As to the style of his writing, it well exhibits the first of the two virtues, clarity and conciseness, that one looks for in philosophical prose. (shrink)

In recent years, there has been growing discussion amongst philosophers about “conceptual engineering”. Put roughly, conceptual engineering concerns the assessment and improvement of concepts, or of other devices we use in thought and talk (e.g., words). This often involves attempts to modify our existing concepts (or other representational devices), and/or our practices of using them. This paper explores the relation between conceptual engineering and conceptual ethics, where conceptual ethics is taken to encompass normative and evaluative questions about concepts, words, and (...) other broadly “representational” and/or “inferential” devices we use in thought and talk. We take some of the central questions in conceptual ethics to concern which concepts we should use and what words should mean, and why. We put forward a view of conceptual engineering in terms of the following three activities: conceptual ethics, conceptual innovation, and conceptual implementation. On our view, conceptual engineering can be defined in terms of these three activities, but not in a straightforward, Boolean way. Conceptual engineering, we argue, is made up of mereologically complex activities whose parts fall into the categories associated with each of these three different activities. (shrink)

If we [women] have not stopped rape, we have redefined it, we have faced it, and we have set up the structures to deal with it for ourselves.[T]he definition of rape, which has in the past always been understood to mean the use of violence or the threat of it to force sex upon an unwilling woman, is now being broadened to include a whole range of sexual relations that have never before in all of human experience been regarded as (...) rape.In 1989 the philosopher and self-described feminist Christina Sommers published a short essay — ‘an opinion piece,’ she called it — that was eventually developed into and published as a philosophical article. In this essay Sommers criticized ‘feminist philosophers’ for being ‘oddly unsympathetic to the women whom they claim to represent.’ Specifically, Sommers accused these philosophers of ignoring the ‘values of the average woman’ and of being caught up in an ‘ideological fervor.’ To emphasize her point that the so-called feminist philosophers have lost touch with ‘the average woman,’ Sommers wrote that ‘One must nevertheless expect that many women will continue to swoon at the sight of Rhett Butler carrying Scarlett O'Hara up the stairs to a fate undreamt of in feminist philosophy.’. (shrink)

What is the simplest and most natural axiomatic replacement for the set-theoretic definition of the minimal fixed point on the Kleene scheme in Kripke’s theory of truth? What is the simplest and most natural set of axioms and rules for truth whose adoption by a subject who had never heard the word "true" before would give that subject an understanding of truth for which the minimal fixed point on the Kleene scheme would be a good model? Several axiomatic systems, old (...) and new, are examined and evaluated as candidate answers to these questions, with results of Harvey Friedman playing a significant role in the examination. (shrink)

This book explores the research of Professor Hilary Putnam, a Harvard professor as well as a leading philosopher, mathematician and computer scientist. It features the work of distinguished scholars in the field as well as a selection of young academics who have studied topics closely connected to Putnam's work. It includes 12 papers that analyze, develop, and constructively criticize this notable professor's research in mathematical logic, the philosophy of logic and the philosophy of mathematics. In addition, it features a short (...) essay presenting reminiscences and anecdotes about Putnam from his friends and colleagues, and also includes an extensive bibliography of his work in mathematics and logic. The book offers readers a comprehensive review of outstanding contributions in logic and mathematics as well as an engaging dialogue between prominent scholars and researchers. It provides those interested in mathematical logic, the philosophy of logic, and the philosophy of mathematics unique insights into the work of Hilary Putnam. (shrink)

Quine correctly argues that Carnap's distinction between internal and external questions rests on a distinction between analytic and synthetic, which Quine rejects. I argue that Quine needs something like Carnap's distinction to enable him to explain the obviousness of elementary mathematics, while at the same time continuing to maintain as he does that the ultimate ground for holding mathematics to be a body of truths lies in the contribution that mathematics makes to our overall scientific theory of the world. Quine's (...) arguments against the analytic/synthetic distinction, even if fully accepted, still leave room for a notion of pragmatic analyticity sufficient for the indicated purpose. (shrink)

As we move around in our environment, and interact with it, many of the most important problems we face involve the processing of spatial information. We have to be able to navigate by perceiving and remembering the locations and orientations of the objects around us relative to ourself; we have to sense and act upon these objects; and we need to move through space to position ourselves in favourable locations or to avoid dangerous ones. While this appears so simple that (...) we don't even think about it, the difficulty of solving these problems has been shown in the repeated failure of artificial systems to perform these kinds of tasks efficiently. In contrast, humans and other animals routinely overcome these problems every single day. This book examines some of the neural substrates and mechanisms that support these remarkable abilities. The hippocampus and the parietal cortex have been implicated in various core spatial behaviours, such as the ability to localise an object and navigate to it. Damage to these areas in humans and animals leads to impairment of these spatial functions. This collection of papers, written by internationally recognized experts in the field, reviews the evidence that each area is involved in spatial cognition, examines the mechanisms underlying the generation of spatial behaviours, and considers the relative roles of the parietal and hippocampal areas, including how each interacts with the other. The papers integrate a wide range of theoretical and experimental approaches, and touch on broader issues relating to memory and imagery. As such, this book represents the state of the art of current research into the neural basis of spatial cognition. It should be of interest to anyone - researchers or graduate students - working in the areas of cognitive neuroscience, neuroanatomy, neuropsychology, and cognition generally. (shrink)

This fourth edition of one of the classic logic textbooks has been thoroughly revised by John Burgess. The aim is to increase the pedagogical value of the book for the core market of students of philosophy and for students of mathematics and computer science as well. This book has become a classic because of its accessibility to students without a mathematical background, and because it covers not simply the staple topics of an intermediate logic course such as Godel's Incompleteness (...) Theorems, but also a large number of optional topics from Turing's theory of computability to Ramsey's theorem. John Burgess has now enhanced the book by adding a selection of problems at the end of each chapter, and by reorganising and rewriting chapters to make them more independent of each other and thus to increase the range of options available to instructors as to what to cover and what to defer. (shrink)

Computability and Logic has become a classic because of its accessibility to students without a mathematical background and because it covers not simply the staple topics of an intermediate logic course, such as Godel's incompleteness theorems, but also a large number of optional topics, from Turing's theory of computability to Ramsey's theorem. This 2007 fifth edition has been thoroughly revised by John Burgess. Including a selection of exercises, adjusted for this edition, at the end of each chapter, it offers (...) a simpler treatment of the representability of recursive functions, a traditional stumbling block for students on the way to the Godel incompleteness theorems. This updated edition is also accompanied by a website as well as an instructor's manual. (shrink)

David Lewis in the short monograph Parts of Classes (PC) undertakes a fundamental re‐examination of the relationship between mereology, the general theory of parts, and set theory, the general theory of collections. Given Lewis's theses, to be an element of a set or member of class is just to have a singleton that is a part thereof. Lewis in PC adds a claim of kind of ontological innocence, comparable to that of first‐order logic, for mereology. The only substantive assumption of (...) plethynticology is that for any condition there are some things such that they are precisely the things for which the conditions hold. All the alternatives, making do with a single domain of individuals, have in common that they involve the axiom of choice. Restated in Hazen's terminology rather than Frege's, the fallback assumption is that there are no more small species than individuals. (shrink)

There are three general ways to approach reconciliation: from the side of nonfactualism, from the side of deflationism, or from both sides at once. To approach reconciliation from a given side, as I will use the expression, just means to attend in the first instance to the details of that side’s position. (It will be important to keep in mind that the success of an approach from one side may ultimately require concessions from the other side.) The only attempts at (...) reconciliation in the literature of which I am aware fall in to the first of these three categories. Such writers argue that the tension between our –isms can be resolved by paying sufficiently close attention to the nature of nonfactualism. While I have nothing against this approach in principle, I do have reservations about the particular proposals that have been made in its pursuit. The first section of the present paper briefly develops a line of objection against one such proposal, in order to motivate the approach to reconciliation from the side of deflationism. In section two, I argue that the deflationist can and should reject the inference from (2) to (3) above. Section three addresses a special problem of reconciliation for the nonfactu- alist who continues to use the discourse she takes to be factually defective. By paying close attention to the details of deflationism about reference, I show how a deflationist about truth might avoid this problem. I conclude that deflationism can be developed in a way that renders it compatible with nonfactualism. (shrink)