In this paper we argue that predictive processing (PP) theory cannot account for the phenomenon of affect-biased attention prioritized attention to stimuli that are affectively salient because of their associations with reward or punishment. Specifically, the PP hypothesis that selective attention can be analyzed in terms of the optimization of precision expectations cannot accommodate affect-biased attention; affectively salient stimuli can capture our attention even when precision expectations are low. We review the prospects of three recent attempts to accommodate affect with (...) tools internal to PP theory: Miller and Clark’s (2018) embodied inference; Seth’s (2013) interoceptive inference; and Joffily and Coricelli’s (2013) rate of change of free energy. In each case we argue that the account does not resolve the challenge from affect-biased attention. For this reason, we conclude that prediction error minimization is not sufficient to explain all mental phenomena, contrary to the claim that the PP framework provides a unified theory of all mental phenomena or the brain ‘s cognitive functioning. Nevertheless, we suggest that empirical investigation of the interaction between affective salience and precision expectations should prove helpful in understanding the limits of PP theory, and may provide new directions for the application of a Bayesian perspective to perception. (shrink)

Jaswal & Akhtar provide several quotes ostensibly from people with autism but obtained via the discredited techniques of Facilitated Communication and the Rapid Prompting Method, and they do not acknowledge the use of these techniques. As a result, their argument is substantially less convincing than they assert, and the article lacks transparency.

McKay & Dennett's (M&D's) description of beliefs, and misbeliefs in particular, is a commendable contribution to the literature; but we argue that referring to beliefs as adaptive or maladaptive can cause conceptual confusion. “Adaptive” is inconsistently defined in the article, which adds to confusion and renders it difficult to evaluate the claims, particularly the possibility of “adaptive misbelief.”.

Michel Foucault's thought not only converges with a certain type of pragmatism; it can deepen our understanding of pragmatism. There is an ambivalence in pragmatist thought between an approach that privileges the question of: ”What works?” and ”How does it work?” The former misses the political idea that some practices don't just work, but work for one purpose or another. Foucault's pragmatism does not focus on what works, but instead utilizes the concept of practices as a unit of analysis, and (...) then asks how they work. This reintroduces a political element that sometimes goes missing in pragmatist thought. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Bob Dylan’s “Highway Shoes” The Hobo-Hero’s Road through ModernityTodd Kennedy (bio)In the final verse of Bob Dylan’s “Don’t Think Twice, It’s Alright” (1963), the speaker proclaims, “I’m walkin’ down that long, lonesome road, babe / where I’m bound, I can’t tell.” With no destination in sight, he seems content to remain on a perpetual, isolated journey on what he terms “the dark side of the road.” Such an ethos (...) of movement, which permeates Dylan’s corpus, mirrors a dissident strain of American culture that seeks to find a Jeffersonian, individualistic freedom via movement through space outside of mainstream society. As early as Bringing It All Back Home (1965), peaking with Blood on the Tracks (1975), and persisting into his most recent work, Dylan has consistently merged aspects of blues, country, and literary traditions, to invoke images of mobility that examine individual freedom in a world where technology, fragmentation, and homogeneity seem to result in a destructive dehumanizing of individuals. In so doing, Dylan uses an intensely innovative aesthetic as he ambivalently romanticizes uprooted wandering in a manner that both mirrors and expands upon what I term an ontology of the hobo-hero that permeates American letters from Walt Whitman to John Dos Passos (and beyond) as it glorifies those who remain in constant motion in order to maintain a sense of integrated self in the face of crushing modernity.Gilles Deleuze and Félix Guattari similarly identify such an ontology within American culture when they, in A Thousand Plateaus, declare America a “special case” defined by its ceaseless search for a “rhizome,” or a “space in which two things that have nothing to do with one another form a parallel constructed by the mind. It is not imitation or resemblance, but becoming” (10). For Deleuze, Guattari, and, as I argue, Bob Dylan, the rhizome occupies a singular place within American letters. In other words, Deleuze and Guattari admit that America “is not immune from [...] the search for roots” in its “quest for a national identity or even for a European ancestry or genealogy (Kerouac going off in search for his ancestors),” yet they adamantly assert,every thing important that has happened or is happening takes the route of the American rhizome [...]. American books are different from European books, even when Americans set off in search of trees. The conception of the book is different. Leaves of Grass. And directions in America are different: the search for arborescence and the return to the Old World occur in the East. But there is the rhizomatic West, with its Indians without ancestry, its ever-receding limit, its shifting and displaced frontiers.(19) [End Page 37]Such an assertion should come as no surprise, I would argue, since, beginning with the earliest attempts to define “America,” Americans have seen their identity linked to mobility. In fact, the lone commonality that Americans share is descent from immigrants who came to the United States from a “home” or “homeland” where cultural identity was not far removed from national identity. It would stand to reason, therefore, that a group of uprooted individuals thrust into a self-declared melting pot would begin to define themselves by their dislocation. For instance, eighteenth-century French immigrant J. Hector St. John de Crèvecœur claimed that, within the American continent, “individuals of all nations are melted into a new race of men” (44) as America represents, for Crèvecœur, an “asylum” in which “the poor of Europe have by some means met together” (42). Crèvecœur proceeded to privilege those people, such as farmers, who planted “roots” as they helped to build and improve their society, but Crèvecœur’s assertion that we are united by our mutual uprootedness proves indicative of what critic Robert James Butler has observed as a recurrent American “quest for pure motion” (80, emphasis in original). Or, one encounters what the novelist John Steinbeck claimed he perceived in “nearly every American”: a “burning desire to go, to move, to get under way, anyplace, away from any Here” (10). It is such an attempt for perennial rebirth through movement, a rhizomatic selfhood, that... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:William James and the Moral Life: Responsible Self-Fashioning New by Todd LekanHenry JackmanBy Todd LekanWilliam James and the Moral Life: Responsible Self-Fashioning New York: Routledge, 2022. 156pp., incl. indexWhile William James wrote just a single article in theoretical ethics, it has often been said that ethical concerns animate almost all of his work.1 Indeed, there has been a growing interest in James’s (...) moral philosophy, and Todd Lekan’s William James and the Moral Life: Responsible Self-Fashioning is the latest, and arguably the best, sustained attempt to introduce readers to James’s ethical thought. The task is not an easy one, since the one essay of James’s that explicitly focuses on theoretical ethics, 1891’s “The Moral Philosopher and the Moral Life”, deals with ‘social’ concerns that don’t clearly align with the more ‘existential’ questions that run through the rest of his corpus.2 In particular, James’s main ‘ethical’ concerns in most of his writings seem to relate more to our living ‘meaningful’ or ‘significant’ lives than it does to our living a ‘moral’ ones. Consequently, writings on James’s ethics tend to treat these two strands separately, either focusing disproportionately on just one of these two aspects, or treating the two as separate components that do not affect one another.3 Weaving both strands of James’s ethical though into a coherent whole may be the primary achievement of Lekan’s book, but he provides much insight into interpretive problems relating to the individual threads along the way.The more ‘social’ strand is admirably explained in Lekan’s first chapter, “Pragmatist Moral Philosophy and Moral Life: Embracing the Tensions”, where he outlines James’s meta-ethical views from “The Moral Philosopher and the Moral Life”, and gives an account of the regulative assumptions and regulative ideals that James appeals to in order to go from his initial thesis that all goodness originates from the desires of sentient beings to the conclusion that “we are morally obligated to [End Page 105] satisfy as many demands as possible”, and that among the available ideals we might choose, “we are morally obligated to adopt ideals whose realization does not undermine the ideals held by others” (15).Ideals move to center stage in the book’s second chapter, “Ideals and Significant Lives”, which trades the social ethics of the first chapter for more existential concerns, and explains how James takes the strenuous pursuit of our own ideals to amount to a kind of ‘self-fashioning’ that makes for a ‘meaningful’ life (36). This answer to the existential question is, however, ambivalent about the social one. Unlike some other interpreters who focus primarily on the existential question, Lekan notes that James’s pluralism about ideals seems to leave plenty of room for ideals that were very much out of line with the moral injunctions of James’s social ethics to produce perfectly significant lives.4 So, for instance, pursuing an ideal tied to the promotion of the supremacy of one’s religion at the expense of all others might satisfy the requirements for creating a significant life, even if that ideal required the relentless persecution of those who did not share it. Indeed, the ideals in question need not be as extreme as this; even more mundane ideals like becoming a great painter, while not directly requiring that you harm others, might still be successfully pursued in a way that ignored the demands of others that was in tension with “The Moral Philosopher”’s emphasis on maximizing overall demand satisfaction.5As the book’s subtitle suggests, Lekan attempts to harmonize the social and existential strands of James’s thought by arguing that our self-fashioning is “responsible” when the ideals involved satisfy the constraints of the moral philosopher discussed in chapter one (50). In particular, the subject who strenuously pursues such moral ideals is characterized as the “existential moral philosopher” (29–30) and striving to satisfy that ideal would produce a life that met both James’s social and existential concerns. That said, it would have been helpful to see a little more about the tension between these two sides... (shrink)

Why does one theory "succeed" while another, possibly clearer interpretation, fails? By exploring two observationally equivalent yet conceptually incompatible views of quantum mechanics, James T. Cushing shows how historical contingency can be crucial to determining a theory's construction and its position among competing views. Since the late 1920s, the theory formulated by Niels Bohr and his colleagues at Copenhagen has been the dominant interpretation of quantum mechanics. Yet an alternative interpretation, rooted in the work of Louis de Broglie in (...) the early 1920s and reformulated and extended by David Bohm in the 1950s, equally well explains the observational data. Through a detailed historical and sociological study of the physicists who developed different theories of quantum mechanics, the debates within and between opposing camps, and the receptions given to each theory, Cushing shows that despite the preeminence of the Copenhagen view, the Bohm interpretation cannot be ignored. Cushing contends that the Copenhagen interpretation became widely accepted not because it is a better explanation of subatomic phenomena than is Bohm's, but because it happened to appear first. Focusing on the philosophical, social, and cultural forces that shaped one of the most important developments in modern physics, this provocative book examines the role that timing can play in the establishment of theory and explanation. (shrink)

Intellectual history and the history of political thought are siblings, perhaps even twins. They have similar origins and use similar materials. They attract many of the same friends and make some of the same enemies. Yet like most siblings, they have different temperaments and ambitions. This essay explores the family resemblances and draws out the contrasts by examining two major works by one of the most prominent political theorists of the past half-century, Alan Ryan, who has recently published two big (...) books that intellectual historians will find rewarding and provocative. (shrink)

From the beginning, the implications of quantum theory for our most general understanding of the world have been a matter of intense debate. Einstein argues that the theory had to be regarded as fundamentally incomplete. Its inability, for example, to predict the exact time of decay of a single radioactive atom had to be due to a failure of the theory and not due to a permanent inability on our part or a fundamental indeterminism in nature itself. In 1964, John (...) Bell derived a theorem which showed that any deterministic theory which preserved locality would have certain consequences for measurements performed at a distance from one another. An experimental check seems to show that these consequences are not, in fact, realized. The correlation between the sets of events is much stronger than any local deterministic theory could allow. What is more, this stronger correlation is precisely that which is predicted by quantum theory. The astonishing result is that local deterministic theories of the classical sort seem to be permanently excluded. Not only can the individual decay not be predicted, but no future theory can ever predict it. The contributors in this volume wrestle with this conclusion. Some welcome it; others leave open a return to at lease some kind of deterministic world, one which must however allow something like action-at-a distance. How much lit it? And how can one avoid violating relativity theory, which excludes action-at-a-distance? How can a clash between the two fundamental theories of modern physics, relativity and quantum theory, be avoided? What are the consequences for the traditional philosophic issue of causality explanation and objectivity? One thing is certain; we can never return to the comfortable Newtonian world where everything that happened was, in principle, predictable and where what happened at one measurement site could not affect another set of measurements being performed light-years away, at a distance that a light-signal could not bridge. Contributors: James T. Cushing, Abner Shimony, N. David Mermin, Jon P. Jarrett, Linda Wessels, Bas C. van Fraassen, Jeremy Butterfield, Michael L. G. Redhead, Henry P. Stapp, Arthur Fine, R. I. G. Hughes, Paul Teller, Don Howard, Henry J. Folse, and Ernan McMullin. (shrink)

We are often told that quantum phenomena demand radical revisions of our scientific world view and that no physical theory describing well defined objects, such as particles described by their positions, evolving in a well defined way, let alone deterministically, can account for such phenomena. The great majority of physicists continue to subscribe to this view, despite the fact that just such a deterministic theory, accounting for all of the phe nomena of nonrelativistic quantum mechanics, was proposed by David Bohm (...) more than four decades ago and has arguably been around almost since the inception of quantum mechanics itself. Our purpose in asking colleagues to write the essays for this volume has not been to produce a Festschrift in honor of David Bohm or to gather together a collection of papers simply stating uncritically Bohm's views on quantum mechanics. The central theme around which the essays in this volume are arranged is David Bohm's version of quantum mechanics. It has by now become fairly standard practice to refer to his theory as Bohmian mechanics and to the larger conceptual framework within which this is located as the causal quantum theory program. While it is true that one can have reservations about the appropriateness of these specific labels, both do elicit distinc tive images characteristic of the key concepts of these approaches and such terminology does serve effectively to contrast this class of theories with more standard formulations of quantum theory. (shrink)

When searching for concepts in memory—as in the verbal fluency task of naming all the animals one can think of—people appear to explore internal mental representations in much the same way that animals forage in physical space: searching locally within patches of information before transitioning globally between patches. However, the definition of the patches being searched in mental space is not well specified. Do we search by activating explicit predefined categories and recall items from within that category, or do we (...) activate and recall a connected sequence of individual items without using categorical information, with each item recalled leading to the retrieval of an associated item in a stream, or both? Using semantic representations in a search of associative memory framework and data from the animal fluency task, we tested competing hypotheses based on associative and categorical search models. Associative, but not categorical, patch transitions took longer to make than position-matched productions, suggesting that categorical transitions were not true transitions. There was also clear evidence of associative search even within categorical patch boundaries. Furthermore, most individuals' behavior was best explained by an associative search model without the addition of categorical information. Thus, our results support a search process that does not use categorical information, but for which patch boundaries shift with each recall and local search is well described by a random walk in semantic space, with switches to new regions of the semantic space when the current region is depleted. (shrink)

An exploration of the moral and ethical implications of new biotechnologies Many of the ethical issues raised by new technologies have not been widely examined, discussed, or indeed settled. For example, robotics technology challenges the notion of personhood. Should a robot, capable of making what humans would call ethical decisions, be held responsible for those decisions and the resultant actions? Should society reward and punish robots in the same way that it does humans? Likewise, issues of safety, environmental concerns, and (...) distributive justice arise with the increasing acceptance of genetically modified organisms in food production nanotechnology in engineering and medicine, and human gene therapy and enhancement. The problem of dual-use—when a technology can be used both to benefit and to harm—exists with virtually all new technologies but is central in the context of emerging 21st century technologies ranging from artificial intelligence and robotics to human gene-editing and brain-computer interfacing. In Re-Creating Nature: Science, Technology, and Human Values in the Twenty-First Century, James T. Bradley addresses emerging biotechnologies with prodigious potential to benefit humankind but that are also fraught with ethical consequences. Some actually possess the power to directly alter the evolution of life on earth including human. Specifically, these topics include stem cells, synthetic biology, GMOs in agriculture, nanotechnology, bioterrorism, CRISPR gene-editing technology, three-parent babies, robotics and roboethics, artificial intelligence, and human brain research and neurotechnologies. Offering clear explanations of these various technologies, a pragmatic presentation of the conundrums involved, and questions that illuminate hypothetical situations, Bradley guides discussions of these and other thorny issues resulting from the development of new biotechnologies. He also highlights the responsibilities of scientists to conduct research in an ethical manner and the responsibilities of nonscientists to become “science literate” in the twenty-first century. (shrink)

I don’t think Lynne Rudder Baker’s constitution view can account for personal identity problems of a synchronic or diachronic nature. As such, it cannot accommodate the Christian’s claim of eschatological bodily resurrection-a principle reason for which she gives this account. In light of this, I press objections against her constitution view in the following ways: First, I critique an analogy she draws between Aristotle’s “accidental sameness” and constitution. Second, I address three problems for Baker’s constitution view [‘Constitution Problems’ ], each (...) more problematic than the next: CP1: Her definition of constitution lacks explanatory power; CP2: If there is a plausible definition of constitution, constitution implies either too many persons or no human persons at all; CP3: Constitution yields no essential distinction between human and divine persons. If my argument go through, her constitution view has neither an explanation for diachronic personal identity nor personal identity through resurrection. (shrink)

This paper provides a statistical survey of the incidence of elision at the penthemimeral caesura in the iambic trimeters of Greek tragedy. It updates and builds on the work of Descroix by considering the rates of elision of different types of words: lexicals, nonlexical polysyllables, and nonlexical monosyllables. While all tragedians elide less at the caesura than throughout the line, in Aeschylus the rate of this reduction is far greater for lexicals and polysyllabic nonlexicals than it is for monosyllabic nonlexicals. (...) On this evidence, and the evidence of interlinear elision, it is tentatively suggested that lexicals and nonlexical polysyllables should together be considered as the more constrained elisions. When the rates of constrained elision are examined, the difference between Aeschylus and later Euripides is revealed to be twice that obtained when bulk figures are used. This difference is attributed to a combination of Euripides’ adoption of more fluent phrasing towards the end of his career and the tragedians’ different approaches to compositional constraints. (shrink)

Up to the present time the science of physics has given us no purely physical theory by which the characteristic formal properties of sensation can be derived. No explanation of the sense world purely in terms of the postulated physical world has been forthcoming, so that the psychologist has had either to ignore sensations or consider them as at least partially unaccountable additions to the entities of physics.That there is, nevertheless, a purely physical explanation of the sense world we hope (...) the following pages will make clear. We will present a theory in which the characteristic properties of sensation are derived from postulated physical entities. (shrink)

Darwin and the Art of Science will consist of excerpts from six of Darwin's books, chosen and introduced by James Costa. The excerpts will be arranged by plant (rather than according to which book they're from) in order to make the most of extraordinary images provided by the Oak Springs Garden Foundation library. As a group, they will provide unparalleled access to Darwin's fascinating observations and musings about the world of plants and how their distinctive features have evolved.

Alexis de Tocqueville, a French aristocrat paradoxically famous for his insights into democracy and equality, is one of history’s greatest analysts of American society and politics. His contributions to political theory and sociology are of enduring significance. This book, from one of the world’s leading experts, is a clearly written and accessible introduction to Tocqueville’s social and political theories. Schleifer guides readers through his two major works, Democracy in America (1835/40) and The Old Regime and the Revolution (1856), as well (...) as his working papers, correspondence, and other writings. Schleifer examines Tocqueville’s essential themes and explores the various meanings of his key terms, including equality, democracy, liberty, and revolution. He combines a skillful exposition of Tocqueville’s analysis of the beneficial and harmful consequences of democracy with a crystal clear discussion of his often overlooked economic ideas and social reform proposals. Schleifer traces both the overall unity and the significant changes in Tocqueville’s ideas, demonstrating the complexity and subtlety of his thought and the importance of his legacy. It will be essential reading for all scholars, students, and general readers interested in the history of political thought, political theory, American politics, and sociology. (shrink)

Categorization and decision making are combined in a task with photorealistic faces. Two different types of face stimuli were assigned probabilistically into one of two fictitious groups; based on the category, faces were further probabilistically assigned to be hostile or friendly. In Part I, participants are asked to categorize a face into one of two categories, and to make a decision concerning interaction. A Markov model of categorization followed by decision making provides reasonable fits to Part I data. A Markov (...) model predicting decision making followed by categorization is rejected. In Part II, a no-parameter model predicts decisions using categorization and decision responses collected in separate trials, suggesting that Part 1 results are not an artifact of the presentation of categorization and decision questions within a single trial. Decisions concerning interaction (defensive/friendly) appear to be based on information from the category decision, and not from the face stimuli alone. (shrink)

In the sixteenth century, Sir Thomas More criticized Martin Luther’s purported denial of a conscious intermediate state between bodily death and bodily resurrection. In the same century, William Tyndale penned a response in defense of Luther’s view. His argument essentially defended the proposition: If the Intermediate State obtains, then bodily resurrection is superfluous for those in the paradisiacal state. In this article, I enter the fray and argue for the truth of this conditional claim. And, like William Tyndale, I use (...) the content and argument of a particular chapter in the Bible, namely, 1 Corinthians 15, to make the point. (shrink)

This essay is an analysis of conscious perception and conscious memory. It tries to show that percepts and mental images (roughly, experientially, the same as Hume's "impressions and ideas") are sets of particles at the perceived stimulus objects and at the remembered stimulus objects. It is thus a theory of direct perception and direct memory, and a materialism but not a central state materialism. The percept (we claim) is an "appearance" of the stimulus object particles (perceived object particles) which is (...) due to the way the particles at the perceived object are interconnected (interrelated) by the networks of stimuli-plus-neuron-impulses starting from them. The same is true of the mental image. This essay is primarily an analysis of such networks--to show, we claim, how they make the sets of object particles seem to have sense qualities and gestalts and other properties of percepts and mental images. (shrink)

This paper explores the economic factors that influence news coverage and discusses the difficulties of determining the impact of news content on political outcomes. Evidence from the United States clearly shows how supply and demand concepts can be used to predict content in newspapers, television, and the Internet. To demonstrate how the concept of market-driven news extends beyond the US, I trace out hypotheses about how media content in many countries should vary depending on three factors in news markets: the (...) motivations of media outlet owners, the technologies of information dissemination available, and the property rights that govern how information is created and conveyed. I offer three different types of analyses to show how these ideas about competition influencing content could be tested across countries. The paper briefly discusses the degree to which market competition affects content in three Asian countries (China, Thailand, and Japan) and concludes with a section on the difficulties of designing policies to improve the operation of media markets. (shrink)

The origins and evolution of the Archaea, Bacteria, and Eukarya remain controversial. Phylogenomic‐wide studies of molecular features that are evolutionarily conserved, such as protein structural domains, suggest Archaea is the first domain of life to diversify from a stem line of descent. This line embodies the last universal common ancestor of cellular life. Here, we propose that ancestors of Euryarchaeota co‐evolved with those of Bacteria prior to the diversification of Eukarya. This co‐evolutionary scenario is supported by comparative genomic and phylogenomic (...) analyses of the distributions of fold families of domains in the proteomes of free‐living organisms, which show horizontal gene recruitments and informational process homologies. It also benefits from the molecular study of cell physiologies responsible for membrane phospholipids, methanogenesis, methane oxidation, cell division, gas vesicles, and the cell wall. Our theory however challenges popular cell fusion and two‐domain of life scenarios derived from sequence analysis, demanding phylogenetic reconciliation. (shrink)

En este artículo se examinan algunos aspectos de la cultura arabigoislámica, de los cuales Juan Ruiz, Arcipreste de Hita, presunto autor del Libro del Buen Amor, demuestra poseer cierto conocimiento. De resultas se sugiere que, mientras los materiales literarios constituyentes del Libro son de raigambre occidental, su estructura se debe a una combinación de ciertos géneros literarios orientales, de lo cual el Libro resultaría ser una obra culturalmente híbrida. Además, se sugiere que el libro debe interpretarse según tres niveles de (...) significado, de acuerdo con la metodología desarrollada por Averroes para captar la verdad, y que, de esos tres niveles, el más elevado, a saber , el filosófico, nos conduce a una crítica velada de la doctrina del celibato eclesiástico, adoptada por la iglesia occidental solo un siglo antes de la época en que el Arcipreste escribiera su obra. (shrink)

El zéjel n.° 84 de Ibn Quzmān se ha considerado hasta ahora como un poema inacabado, al que le falta la sección final de panegírico, debido a un supuesto accidente en la transmisión del manuscrito. Según esta teoría, el poema ha llegado incompleto a nuestros días. Este artículo, a través del análisis de algunas de sus características temáticas sobresalientes, estrechamente relacionadas y que muestran una estructura compleja y cuidadosamente organizada, pretende mostrar que existen fuertes razones para sugerir que el zéjel (...) n.° 84 no está inacabado, sino que se compuso omitiendo, de forma deliberada, la parte final que se espera encontrar usualmente en un panegírico árabe. Se sugiere a continuación que este recurso fue adoptado por el poeta para estimular, en el oyente/lector, la aparición de unas consideraciones de tipo teológico, filosófico y moral a través de una obra que, superficialmente, parece ser tan sólo de carácter bufonesco y sin preocupación social alguna. Finalmente, el artículo intenta explorar el valor literario del poema y el extraordinario mérito de su autor. (shrink)

THIS ESSAY FIRST PRESENTS GENERAL GUIDELINES FOR INTERPRETING magisterial documents using Lumen gentium's triple criteria of considering the character, manner, and frequency of magisterial teaching in order to better determine its relative authority and weight. Next, these criteria are applied to a close reading of Pope John Paul Il's various documents that deal with end-of-life issues, especially his controversial March 2004 address to the participants in the International Congress on Life-Sustaining Treatments and Vegetative State: Scientific Advances and Ethical Dilemmas. This (...) analysis concludes that the pope did not in fact assert that artificial hydration and nutrition had to be used in virtually every medical case, such as patients diagnosed to be in a persistent vegetative state. (shrink)