The cortical visual mechanisms involved in processing spatial relationships remain subject to debate. According to one current view, the ''dorsal stream'' of visual areas, emanating from primary visual cortex and culminating in the posterior parietal cortex, mediates this aspect of visual processing. More recently, others have argued that while the dorsal stream provides egocentric coding of visual location for motor control, the separate ''ventral'' stream is needed for allocentric spatial coding. We have assessed the visual form agnosic patient DF, whose (...) lesion mainly affects the ventral stream, on a prehension task requiring allocentric spatial coding. She was presented with transparent circular disks. Each disk had circular holes cut in it. DF was asked to reach out and grasp the disk by placing her fingers through the holes. The disks either had three holes (for forefinger, middle finger, and thumb) or two holes (for forefinger and thumb). The distance between the forefinger and thumb holes, and the orientation of the line formed by them, were independently varied. DF was quite unable to adjust her grip aperture or her hand orientation in the three-hole task. Although she was able to orient her hand appropriately for the two-hole disks, she still remained unable to adjust her grip aperture to the distance between the holes. These findings are consistent with the idea that allocentric processing of spatial information requires a functioning ventral stream, even when the information is being used to guide a motor response. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy and Literature 25.2 (2001) 350-353 [Access article in PDF] Book Review The Ways of Naysaying: No, Not, Nothing, and Nonbeing, The Ways of Naysaying: No, Not, Nothing, and Nonbeing, by Eva T. H. Brann; xviii & 249 pp. Lanham, Md.: Rowman & Littlefield Publishers, 2001, $35.00. This, the third of Eva Brann's trilogy on imagination, time, and naysaying respectively, is described by one of her colleagues as her (...) "cradle-to-grave book" (p. xvi). The word "naysaying" plays felicitously on the sound of the English word "nay" and the cognate Indo-European root "ne," which gives Brann a convenient starting-point for discerning what various forms of naysaying have in common. Note that this is saying rather than thinking, being, or doing, although the relations among these acts are a recurring concern in her discussion. Unlike some "postmoderns," Brann does not regard language as a self-contained arena with no reference outside of itself. Rather, for her, language is a convenient medium for thinking about what is extralinguistic, whether in the mind or elsewhere.Nor does she think that a word must necessarily have some underlying unity beneath its various meanings. In fact, heeding Wittgenstein's warning, she admits that "it is a pathologically bad craving to want a word to have one ultimate meaning, worse to look for one meaning over many words, and worst to assume that such a meaning may apply to a something beyond the realm of language." Nevertheless, she suggests, "this craving to look for one truth behind many appearances may be simply irradicable, being nothing less than the philosophical impulse" (p. xiv).Where does her "philosophical impulse" focus, on texts or on things? She explicitly tells us that texts are indispensable (at least for her) to get very far with the things themselves (p. 2). And so, in the course of her investigation, she attends to Parmenides, Plato, Aristotle, Anselm, Kant, Fichte, Hegel, Bergson, Frege, Meinong, Russell, Whitehead, Dewey, Heidegger, and Wittgenstein, among others. Nonetheless, she begins by noticing a sort of willful denial that is pre-linguistic and "speechless" (the contrariness of an infant), and she ends with the nothingness that is void of all language and everything else. These two topics, expressed by the words "No" (Chapter One) and "Nothing" (Chapter Six) respectively, "frame" her inquiry (p. 42). Along the way she always has an eye to what lies behind or beyond language, in the world or in the mind, with a chapter each for "Not," "Nonexistence," "Nonbeing," and "Negativity." She [End Page 350] says that Chapter Four, concerning "Nonbeing," is the center and philosophic focus of her study. Brann's chapters thus represent the six big divisions for organizing her observations. Indeed, for Brann, the plurality of naysayings "seems to fall naturally" into her sixfold division (p. xiv).Thoughtfully pondering this structure takes the reader a long way toward understanding the work (in both senses of "work": the thought itself and the text which records that thought). The chapter divisions progress from the willful, through the logical, the imaginative, the philosophic, and the dialectical, to end, as we noted, in the absolute Nothing, the "antagonist of Being." For instance, the distinction between the first two--the willful and the logical--is the distinction between the personal (denial) and the impersonal (negation). In considering willful denial, Brann understands the will to be a "willingness, inclination, readiness"--usually "determinate," "focused and active" (p. 7). Likewise, negation also has a personal origin: "Negation arises from the human desire and ability to make distinctions; it is (most likely) grounded in the opposition and polarities that belong to beings (of which the first... is surely that of thinking itself to its object, be it ideal or real)" (p. 29f.). Thus, although logical negation seems to originate in the personal subject there is something quite detachable and impersonal about logical formulations, so that Heraclitus "bids people hear his truth 'not listening to me but to the logos,' the cosmic collecting and distinguishing power" (p. 128). So the logos that begins for us as "reason manifested in... (shrink)

By casting a wide net for his interviews - from tiny hamlets to bustling Guatemala City - Carey gained insight into more than a single community or a single group of Maya."--BOOK JACKET.

As the expansion of the Internet and the digital formatting of all kinds of creative works move us further into the information age, intellectual property issues have become paramount. Computer programs costing thousands of research dollars are now copied in an instant. People who would recoil at the thought of stealing cars, computers, or VCRs regularly steal software or copy their favorite music from a friend's CD. Since the Web has no national boundaries, these issues are international concerns. The contributors-philosophers, (...) legal theorists, and business scholars, among others-address questions such as: Can abstract ideas be owned? How does the violation of intellectual property rights compare to the violation of physical property rights? Can computer software and other digital information be protected? And how should legal systems accommodate the ownership of intellectual property in an information age? Intellectual Property is a lively examination of these and other issues, and an invaluable resource for librarians, lawyers, businesspeople, and scholars. (shrink)

Little is known about distance processing in patients with posterior brain damage. Although many investigators have claimed that distance estimates are normal or abnormal in some of these patients, many of these observations were made informally and the examiners often asked for relative, and not absolute, distance estimates. The present investigation served two purposes. First, we wanted to contrast the use of distance information in peripersonal space for perceptual report as opposed to visuomotor control in our visual form agnosic patient, (...) DF. Second, we wanted to see to what extent her abilities to process distance cues were dependent on binocular vision, in light of Milner et al.'s (1991) observations of preserved stereopsis in DF, and Dijkerman et al.'s (1996) and Marotta et al.'s (1997) observations that her visual guidance of grasping may be particularly dependent on binocular vision of the target. We hypothesized that DF's visuomotor responses would show normal sensitivity to target distance, while her perceptual estimates would not. In the first experiment, we required DF and two age- and sex-matched control subjects to reach out and grasp black cubes placed at varying distances, or to estimate the distance of the cubes from the hand starting position without making a reaching movement. In the second experiment, we required DF and two age-matched control subjects to point as rapidly and accurately as possible to small LED targets which differed in spatial location, under binocular and monocular conditions. The results showed that, relative to the control subjects, DF's grasping movements produced normal peak velocity-distance scaling-when she reached for blocks which varied in depth or pointed to LED targets which were presented at different distances in depth. In contrast, in the cube experiment, her verbal estimates of object distance were poorly scaled, although they improved slightly under the binocular conditions. The results are discussed in terms of current theories of processing streams in extrastriate visual cortex and the distinction between categorical and coordinate spatial processing. (shrink)

In this essay we defend the view that from a purely rule-utilitarian perspective there is no sound argument favoring the immorality of hostile liquidating buyouts. All arguments favoring such a view are seriously flawed. Moreover, there are some good argument favoring the view that such buyouts may be morally obligatory from the rule-utilitarian perspective. We also defend the view that most of the shark repellents in the market are immoral. If we are right in our arguments there is no justification, (...) moral or otherwise, for any form of legislation that would constrain the practice of hostile liquidating buyouts. (shrink)

We outline a view of imitative behaviour as largely internally driven and discuss, based on experimental research, the distinction between program versus action level imitation, the role of organismic constraints, observational learning as vicarious exploration, and imitation as selection in speeded response paradigms.

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 38.1 (2000) 103-110 [Access article in PDF] Hutcheson's Moral Sense and the Problem of Innateness Daniel Carey National University of Ireland Francis Hutcheson's philosophy arguably represented a delicate, and at times precarious, synthesis of positions laid out by John Locke and the third Earl of Shaftesbury. From Shaftesbury, whose influence he acknowledged explicitly in the title page of the first edition of (...) the Inquiry into the Original of our Ideas of Beauty and Virtue (1725), Hutcheson gained an appreciation of the dignity of human nature, reflected in sociable instincts, benevolent impulses, and the moral sense. From Locke he adopted the bias of empiricism, placing moral philosophy on an observational footing, ostensibly free from a priori assumptions.1 The challenge posed by integrating the work of these two mentors arose from their deep incompatibility, evident in Shaftesbury's declared opposition to Locke's mode of philosophizing and rejection of his disagreeable representation of human nature. Nowhere was Hutcheson's combination of Locke and Shaftesbury more difficult to sustain than over the issue of innateness. Locke was intent on jettisoning innate ideas, but Shaftesbury remained keen to rescue them.Of course there are different versions and definitions of innateness at stake here: on one account, it entailed the possession of particular, specifiable ideas or conceptions, somehow inscribed in the soul which might or might not require the trigger of experience to emerge (for example, ideas of God, good and, evil); on another, a predisposition to hold certain beliefs and make certain judgments, provided that 'normal' conditions of maturity and rationality have been met; finally, a faculty, that is, an inborn structure enabling the subject to experience the world in a moral way, and to register ethical responses to it, whatever they may be.2 All of these orientations on innateness impinge on Hutcheson's approach to the problem. On the one hand, he conceded Locke's critique as consistent with modern philosophizing, but he restricted its force to innate ideas or propositions, leaving the moral sense conveniently exempt from the [End Page 103] objection. On the other hand, Hutcheson was determined to reintroduce the content of innate ideas if not the name, assigning the moral sense a familiar, normative role in underwriting perceptions and judgments.The intricacy of the issue has led critics to arrive at contradictory assessments of Hutcheson's outlook on innateness. Stephen Buckle and Knud Haakonssen take Hutcheson at his word and argue that he abandoned innate ideas altogether.3 David Fate Norton agrees that Hutcheson found Locke's critique persuasive, at least against neo-Platonic theories of ethics (such as Cudworth's), but elsewhere Norton maintains that Hutcheson sets up the moral sense as an "innate and independent" moral faculty.4 Charles Taylor, meanwhile, stresses the dispositional inclination of Hutcheson's argument: "Goodness and generosity are natural to us. He might have been tempted in an earlier generation to say 'innate,' but he has internalized enough of the Lockean psychology to shy away from this. So he claims that these sentiments are ones we naturally grow to have, just as we develop to our normal stature and shape."5 Given the disparate of conclusions drawn by historians of philosophy, the issue clearly merits reinvestigation. Differing lines of interpretation have emerged precisely because Hutcheson frequently changed his tack. His shifting strategy appears both in the revisions he made to later editions of the Inquiry, and in the development of his work over the course of his career. Closer attention to these considerations offers an insight into the predicament of moral philosophy in the early decades of the eighteenth century.In the critique of innate practical ideas launched in the first book of the Essay concerning Human Understanding (1690), Locke took a sceptical view of Stoic assertions about human uniformity and the existence of "common notions" indicating moral consensus around the world.6 Evidence drawn from contemporary travelers suggested the absence of any moral agreement of this kind; Locke based his conclusion on an investigation of human practice influenced by techniques... (shrink)

Does strolling through an art museum, admiring the old masters, improve us morally and spiritually? Would government subsidies of "high art" (such as big-city opera houses) be better spent on local community art projects? In What Good are the Arts? John Carey--one of Britain's most respected literary critics--offers a delightfully skeptical look at the nature of art. In particular, he cuts through the cant surrounding the fine arts, debunking claims that the arts make us better people or that judgements (...) about art are anything more than personal opinion. Indeed, Carey argues that there are no absolute values in the arts and that we cannot call other people's aesthetic choices "mistaken" or "incorrect," however much we dislike them. Along the way, Carey reveals the flaws in the aesthetic theories of everyone from Emanuel Kant to Arthur C. Danto, and he skewers the claims of "high-art advocates" such as Jeannette Winterson. But Carey does argue strongly for the value of art as an activity and for the superiority of one art in particular: literature. Literature, he contends, is the only art capable of reasoning, and the only art that can criticize. Language is the medium that we use to convey ideas, and the usual ingredients of other arts--objects, noises, light effects--cannot replicate this function. Literature has the ability to inspire the mind and the heart towards practical ends far better than any work of conceptual art. Here then is a lively and stimulating invitation to debate the value of art, a provocative book that will pique the interest of anyone who loves painting, music, or literature. (shrink)

This article explores the ethical challenges of providing Medical Assistance in Dying (MAID) in a paediatric setting. More specifically, we focus on the theoretical questions that came to light when we were asked to develop a policy for responding to MAID requests at our tertiary paediatric institution. We illuminate a central point of conceptual confusion about the nature of MAID that emerges at the level of practice, and explore the various entailments for clinicians and patients that would flow from different (...) understandings. Finally, we consider the ethical challenges of building policy on what is still an extremely controversial social practice. While MAID is currently available to capable patients in Canada who are 18 years or older—a small but important subsection of the population our hospital serves—we write our policy with an eye to the near future when capable young people may gain access to MAID. We propose that an opportunity exists for MAID-providing institutions to reduce social stigma surrounding this practice, but not without potentially serious consequences for practitioners and institutions themselves. Thus, this paper is intended as a road map through the still-emerging legal and ethical landscape of paediatric MAID. We offer a view of the roads taken and considered along the way, and our justifications for travelling the paths we chose. By providing a record of our in-progress thinking, we hope to stimulate wider discussion about the issues and questions encountered in this work. (shrink)

In their summary and critique, Gamble, Gamble, and Pruski mischaracterise both the central arguments and the primary objectives of our original paper. Our paper does not provide an ethical justification for paediatric Medical Assistance in Dying by comparing it with other end of life care options. In fact, it does not offer arguments about the permissibility of MAID for capable young people at all. Instead, our paper focuses on the ethical questions that emerged as we worked to develop a policy (...) for responding to MAID requests at our tertiary paediatric institution. Following the Supreme Court of Canada’s recent decriminalisation of MAID, our hospital needed to answer immediate on-the-ground questions such as: ‘What are we going to do if an 18-year-old patient in our care requested MAID today, as is now their legal right? How should we protect their privacy? What is the best way to ensure patients are informed when making these decisions?’ On these important questions, Gamble, Gamble, and Pruskiare silent. (shrink)

Epistemic Modality Epistemic modality is the kind of necessity and possibility that is determined by epistemic constraints. A modal claim is a claim about how things could be or must be given some constraints, such as the rules of logic, moral obligations, or the laws of nature. A modal … Continue reading Epistemic Modality →.

Only human beings have a rich conceptual repertoire with concepts like tort, entropy, Abelian group, mannerism, icon and deconstruction. How have humans constructed these concepts? And once they have been constructed by adults, how do children acquire them? While primarily focusing on the second question, in The Origin of Concepts , Susan Carey shows that the answers to both overlap substantially. Carey begins by characterizing the innate starting point for conceptual development, namely systems of core cognition. Representations of (...) core cognition are the output of dedicated input analyzers, as with perceptual representations, but these core representations differ from perceptual representations in having more abstract contents and richer functional roles. Carey argues that the key to understanding cognitive development lies in recognizing conceptual discontinuities in which new representational systems emerge that have more expressive power than core cognition and are also incommensurate with core cognition and other earlier representational systems. Finally, Carey fleshes out Quinian bootstrapping, a learning mechanism that has been repeatedly sketched in the literature on the history and philosophy of science. She demonstrates that Quinian bootstrapping is a major mechanism in the construction of new representational resources over the course of childrens cognitive development. Carey shows how developmental cognitive science resolves aspects of long-standing philosophical debates about the existence, nature, content, and format of innate knowledge. She also shows that understanding the processes of conceptual development in children illuminates the historical process by which concepts are constructed, and transforms the way we think about philosophical problems about the nature of concepts and the relations between language and thought. (shrink)

Part of the appeal of the biological approach to personal identity is that it does not have to countenance spatially coincident entities. But if the termination thesis is correct and the organism ceases to exist at death, then it appears that the corpse is a dead body that earlier was a living body and distinct from but spatially coincident with the organism. If the organism is identified with the body, then the unwelcome spatial coincidence could perhaps be avoided. It is (...) argued that such an identification would be a mistake. A living organism has a different part/whole relationship and persistence conditions than the alleged body. A case will be made that the concept ‘human body’ is a conceptual mess, vague in an unprincipled manner, and that an eliminativist stance towards dead bodies is the appropriate response. CiteULike Connotea Del.icio.us What's this? (shrink)

Epistemic Modality Epistemic modality is the kind of necessity and possibility that is determined by epistemic constraints. A modal claim is a claim about how things could be or must be given some constraints, such as the rules of logic, moral obligations, or the laws of nature. A modal … Continue reading Epistemic Modality →.

Philosophical counseling can be understood as the facilitation of personal narratives in which an individual’s moral frameworks are clarified and re-prioritized. Drawing on Charles Taylor’s notion of narrative, hyper-goods and moral frameworks, and applying them to a case study, this article shows the different roles family can play in the formation of a personal narrative.

Edgar Morin proposed that knowledge construction is best enacted via a complex and circular approach between both the part and the whole, while never enacting a strictly reductionistic or strictly holistic approach. It is the ability to connect and unite the parts within the whole via a dynamic circular process between the parts and whole that frees us from fragmented knowledge and helps us to bridge the gap between our seemingly disparate-competing nursing paradigms. This article examines the benefits of utilizing (...) Morin's complexity theory, the dialogical, and circular processes in creating a liberating structural framework or paradigm for nursing education. (shrink)

This research examined how and why group membership diminishes the attribution of mind to individuals. We found that mind attribution was inversely related to the size of the group to which an individual belonged . Mind attribution was affected by group membership rather than the total number of entities perceived at once . Moreover, mind attribution to an individual varied with the perception that the individual was a group member. Participants attributed more mind to an individual that appeared distinct or (...) distant from other group members than to an individual that was perceived to be similar or proximal to a cohesive group . This effect occurred for both human and nonhuman targets, and was driven by the perception of the target as an entitative group member rather than by the knowledge that the target was an entitative group member. (shrink)

As a continuation of the work of the third author in [5], we make further observations on the features of Galois cohomology in the general model theoretic context. We make explicit the connection between forms of definable groups and first cohomology sets with coefficients in a suitable automorphism group. We then use a method of twisting cohomology (inspired by Serre’s algebraic twisting) to describe arbitrary fibres in cohomology sequences—yielding a useful “finiteness” result on cohomology sets. Applied to the special case (...) of differential fields and Kolchin’s constrained cohomology, we complete results from [3] by proving that the first constrained cohomology set of a differential algebraic group over a bounded, differentially large, field is countable. (shrink)

Psychological ownership may be judged differently or similarly for self and others. Potential differences in how ownership is evaluated by actors and observers raise important questions about the concept of ownership (what is Mine, Ours, and Theirs) and how to resolve conflicting perceptions.