Afferent feedback can appreciably alter the pharyngeal phase of swallow. In order to measure the stability of the swallow motor pattern during several types of alterations in afferent feedback, we assessed swallow during a conventional water challenge in four anesthetized cats, and compared that to swallows induced by fixed (20 Hz) and stochastic (1-20Hz) electrical stimulation applied to the superior laryngeal nerve. The swallow motor patterns were evaluated by electromyographic activity (EMG) of eight muscles, based on their functional significance: laryngeal (...) elevators (mylohyoid, geniohyoid, and thyrohyoid); laryngeal adductor (thyroarytenoid); inferior pharyngeal constrictor (thyropharyngeus); upper esophageal sphincter (cricopharyngeus); and inspiratory activity (parasternal and costal diaphragm). Both the fixed and stochastic electrical stimulation paradigms increased activity of the laryngeal elevators, produced short-term facilitation evidenced by increasing swallow durations over the stimulus period, and conversely inhibited swallow-related diaphragm activity. Both the fixed and stochastic stimulus conditions also increased specific EMG amplitudes, which never occurred with the water challenges. Stochastic stimulation increased swallow excitability, as measured by an increase in the number of swallows produced. Consistent with our previous results, changes in the swallow motor pattern for pairs of muscles were only sometimes correlated with each other. We conclude that alterations in afferent feedback produced particular variations of the swallow motor pattern. We hypothesize that specific SLN feedback might modulate the swallow central pattern generator during aberrant feeding conditions (food/liquid entering the airway), which may protect the airway and serve as potentially important clinical diagnostic indicators. (shrink)

Many recent discussions of the identity and individuation of actions focus on attempts to find satisfactory answers to questions like, “When, if ever, is a shooting a killing?” Those who attempt to answer such questions divide themselves, on the whole, into two opposing groups. I. Thalberg has conveniently labelled the members of one group ‘unifiers’, and the members of the other group ‘multipliers’.The unifier account is commonly attributed to philosophers such as G. E. M. Anscombe and Donald Davidson. Proponents (...) of this account characteristically believe that many non-basic actions such as shootings, killings, etc., are identical with those basic actions by means of which the non-basic ones are performed. This position is indicated in the following remarks:… in moving her hand, the queen was doing something that caused the death of the king. These are two descriptions of the same event — the queen moved her hand in that way; she did something that caused the death of the king. Doing something that causes a death is identical with causing a death. But there is no distinction to be made between causing the death of a person and killing him. (shrink)

In 1958, economist A. W. Phillips published an article describing what he observed to be the inverse relationship between inflation and unemployment; subsequently, the "Phillips curve" became a central concept in macroeconomic analysis and policymaking. But today's Phillips curve is not the same as the original one from fifty years ago; the economy, our understanding of price setting behavior, the determinants of inflation, and the role of monetary policy have evolved significantly since then. In this book, some of the top (...) economists working today reexamine the theoretical and empirical validity of the Phillips curve in its more recent specifications. The contributors consider such questions as what economists have learned about price and wage setting and inflation expectations that would improve the way we use and formulate the Phillips curve, what the Phillips curve approach can teach us about inflation dynamics, and how these lessons can be applied to improving the conduct of monetary policy. ContributorsLawrence Ball, Ben Bernanke, Oliver Blanchard, V. V. Chari, William T. Dickens, Stanley Fischer, Jeff Fuhrer, Jordi Gali, Michael T. Kiley, Robert G. King, Donald L. Kohn, Yolanda K. Kodrzycki, Jane Sneddon Little, Bartisz Mackowiak, N. Gregory Mankiw, Virgiliu Midrigan, Giovanni P. Olivei, Athanasios Orphanides, Adrian R. Pagan, Christopher A. Pissarides, Lucrezia Reichlin, Paul A. Samuelson, Christopher A. Sims, Frank R. Smets, Robert M. Solow, Jürgen Stark, James H. Stock, Lars E. O. Svensson, John B. Taylor, Mark W. Watson. (shrink)

Revered for his contributions to empiricism, skepticism and ethics, David Hume remains one of the most important figures in the history of Western philosophy. His first and broadest work, A Treatise of Human Nature, comprises three volumes, concerning the understanding, the passions and morals. He develops a naturalist and empiricist program, illustrating that the mind operates through the association of impressions and ideas. This Companion features essays by leading scholars that evaluate the philosophical content of the arguments in Hume's Treatise (...) while considering their historical context. The authors examine Hume's distinctive views on causation, motivation, free will, moral evaluation and the origins of justice, which continue to influence present-day philosophical debate. This collection will prove a valuable resource for students and scholars exploring Hume, British empiricism and modern philosophy. (shrink)

If a bit of perceptual behavior is a trope, so is any response to a stimulus, and so is the stimulus, and so therefore, more generally, is every effect and its cause. When we say that the sunlight caused the blackening of the film we assert a connection between two tropes; when we say that Sunlight in general causes Blackening in general, we assert a corresponding relation between the corresponding universals. Causation is often said to relate events, and generally speaking (...) any event is a trope: a smile, a sneeze, a scream, an election, a cold snap, a storm, a lightning flash, a conspiracy, perhaps a wave, and so on up to such big and important events that they have proper names, like the Passover and Lulu the H-bomb explosion. We have called a trope a "case" of its universal, while the universal is the "kind" of the trope, so it is no surprise that a medical "case" is a trope--in the sense, at any rate, in which a person is said to have a case of typhoid fever rather than to be a case of it. A high-school boy, uncoached, has assured me, "Of course there's such a thing as Redness--this pencil has a case of it." When a scientist reports a temperature or a velocity or a viscosity he is reporting a trope--not a universal, because it is a once-for-all occurrence, but not a concrete thing either, though doubtless a component of one. He is likely to call it an "aspect" of the thing or, preferably, a "state," and generally speaking a "state" of a thing or a nation is a trope. Recent developments in sub-atomic physics, a none too reliable oracle, suggest that an electron, e.g., just is an existent state, and that the common-sense philosophy of concreta here abdicates altogether in favor of the trope. (shrink)

This textbook is a flexible and affordable collection of classic and contemporary primary sources in philosophy. The readings cover seven basic topics of Western Philosophy. The selections are long enough to present a self-contained argument but not so lengthy that students lose track of the main point. The book includes a glossary and an appendix on logic and argumentation.

The thesis of this book is that despite Freud's low opinion of philosophy and despite his claim that psychoanalysis avoids value judgements, psychoanalytic theory does contain a moral philosophy.

David Hume is famous as a sceptical philosopher but the nature of his scepticism is difficult to pin down. Hume's True Scepticism provides the first sustained interpretation of Part 4 of Book 1 of Hume's Treatise: his deepest engagement with sceptical arguments, in which he notes that, while reason shows that we ought not to believe the verdicts of reason or the senses, we do so nonetheless. Donald C. Ainslie addresses Hume's theory of representation; his criticisms of Locke, Descartes, (...) and other predecessors; his account of the imagination; his understanding of perceptions and sensory belief; and his bundle theory of the mind and his later rejection of it. (shrink)

This book takes a novel look at the topics of school mathematics--arithmetic, geometry, algebra, and calculus. In this stroll on the mathematical seashore we hope to find, quoting Newton, "...a smoother pebble or a prettier shell than ordinary..." This book assembles a collection of mathematical pebbles that are not only curious but also important.

My main thesis is that the necessary and its necessity are factual, or matters of fact, in the sense that they are realities on the same ontic plane or planes with any other beings there may be, physical, phenomenal, or Platonically transcendent, and are no more creatures of thought and speech than dogs and gravity are; if I think they are all physical actualities, this is only because I think everything is. I have a second thesis, however, which is that (...) the realities objectively characterized by necessity are "facts" in the more special sense in which we say it is a fact that the earth is round but not that the earth is a fact or that roundness is a fact. It is fashionable to declare that necessity and contingency pertain only to statements, judgments, or "propositions"; and though the popularity of this is due, I am afraid, to what is false in it, namely, its subjectivism, its philosophic force is due to a covert truth, that necessity can qualify nothing short of the states of affairs which make statements or judgments necessarily true. Any shifts that can avoid the admission of facts in general as first-class members of the universe can provide for what I shall say of necessary facts, but meanwhile the worth of the category will be so proving itself that I cannot foresee abandoning it, and it is all I shall be meaning hereinafter by the word "facts.". (shrink)

The concept of complexity has become very important in theoretical biology. It is a many faceted concept and too new and ill defined to have a universally accepted meaning. This review examines the development of this concept from the point of view of its usefulness as a criteria for the study of living systems to see what it has to offer as a new approach. In particular, one definition of complexity has been put forth which has the necessary precision and (...) rigor to be considered as a useful categorization of systems, especially as it pertains to those we call living. This definition, due to Robert Rosen, has been developed in a number of works and involves some deep new concepts about the way we view systems. In particular, it focuses on the way we view the world and actually practice science through the use of the modelling relation. This mathematical object models the process by which we assign meaning to the world we perceive. By using the modelling relation, it is possible to identify the subjective nature of our practices and deal with this issue explicitly. By so doing, it becomes clear that our notion of complexity and especially its most popular manifestations, is in large part a product of the historical processes which lead to the present state of scientific epistemology. In particular, it is a reaction to the reductionist/mechanistic view of nature which can be termed the Newtonian Paradigm. This approach to epistemology has dominated for so long that its use as a model has become implicit in most of what we do in and out of science. The alternative to this approach is examined and related to the special definition of complexity given by Rosen. Some historical examples are used to emphasize the dependence of our view of what is complex in a popular sense on the ever changing state of our knowledge. The role of some popular concepts such as chaotic dynamics are examined in this context. The fields of artificial life and related areas are also viewed from the perspective of this rigorous view of complexity and found lacking. The notion that in some way life exists at the edge of chaos is examined from the perspective of the second law of thermodynamics given by Schneider and Kay. Finally, the causal elements in complex systems are explored in relation to complexity. Rosen has shown that a clear difference in causal relations exists between complex and simple systems and that this difference leads to a uniquely useful definition of what we mean by living. Rosen makes it very clear that the class of systems which are complex is a much larger class than those which we call living. For that reason, the focus of this review will be on complexity as a stepping stone towards the deeper question of what makes a system alive. (shrink)

Neo-Humean instrumentalist theories of reasons for acting have been presented with a dilemma: either they are normatively trivial and, hence, inadequate as a normative theory or they covertly commit themselves to a noninstrumentalist normative principle. The claimed result is that no purely instrumentalist theory of reasons for acting can be normatively adequate. This dilemma dissolves when we understand what question neo-Humean instrumentalists are addressing. The dilemma presupposes that neo-Humeans are attempting to address the question of how to act, 'simpliciter'. Instead, (...) they are evaluating actions from the agent's normative perspective. (shrink)

Research Articles Donald C. Hubin, Social Philosophy and Policy, FirstView Article.

Argues against G.E. Moore's thesis that "good" is unanalysable. Consulting the dictionary ("more illuminating than many volumes of rational axiology"), Williams concludes that the fundamental meaning of "good" is being in accord with my purposes. That does not rule out a search for some highest good that will unify my purposes.

Mr. E. J. Nelson, in “The Inductive Argument for an External World,” treats of fundamental topics with erudition and urbanity, but his essay remains inconclusive, I believe, with respect to its purpose of discrediting the argument. He agrees with Mr. Savery, Mr. Pratt, and me, as against the positivists, that the question of the existence of an external world is meaningful and indeed of paramount importance for both metaphysics and logic. But he argues against us that it cannot be inductively (...) established by its supposed power of “saving the appearances.” He is not sure that any induction is valid; but even if other inductions are valid, he thinks this one can not be, for the following reasons. By the multiplicative axiom of probability-theory, evidence for a hypothesis can only multiply its antecedent probability, and can increase the probability only when the latter is finite, while the hypothesis of an external world has and can have no finite antecedent probability. By the same axiom, even granted an antecedent probability for the hypothesis itself, no experience can act as evidence to increase the probability of a hypothesis except in so far as the hypothesis implies, makes probable, or “explains” the evidence, and this the hypothesis of an external world cannot do. (shrink)

Neo-Humean instrumentalists hold that anagent's reasons for acting are grounded in theagent's desires. Numerous objections have beenleveled against this view, but the mostcompelling concerns the problem of ``aliendesires'' – desires with which the agent doesnot identify. The standard version ofneo-Humeanism holds that these desires, likeany others, generate reasons for acting. Avariant of neo-Humeanism that grounds anagent's reasons on her values, rather than allof her desires, avoids this implication, but atthe cost of denying that we have reasons to acton innocent whims. (...) A version of neo-Humeanismthat holds that an agent has reason to satisfyall of her desires that are not in conflictwith her values appears to allow us to grantthe reason-giving force of innocent whims whiledenying the reason-giving force of alien desires. (shrink)

A well-known relativistic action at a distance interaction of two unequal masses is altered so as to yield purely Newtonian radial forces with fixed particle rest masses in the system center-of-momentum inertial frame. Although particle masses experience no kinematic mass increase in this frame, speeds are naturally restricted to less than the speed of light. We derive a relation between the center-of-momentum frame total Newtonian energy and the composite rest mass. In a new proper time quantum formalism, we obtain an (...) L2(R4 ⊗ R4, C) Hilbert space by varying individual particle rest masses. We propose the use of density operators, recognizing that the auxiliary proper time parameter is not an observable. The quantum formalism is applied to our altered version of the relativistic harmonic oscillator. Our generalized coherent states yield four-dimensional wave packets which follow the correct classical world lines. Appendices contain reviews of classical Hamiltonian reparametrization (incorporating our notion of manifest covariance), and a comparison of this work with the literature. (shrink)

Drawing on previously unknown or unassimilated sources, Donald C. Hodges here presents an entirely new interpretation of the politics and philosophy of Augusto C. Sandino, the intellectual progenitor of Nicaragua's Sandinista revolution. The first part of the book investigates the political sources of Sandino's thought in the works of Babeuf, Buonarroti, Blanqui, Proudhon, Bakunin, Most, Malatesta, Kropotkin, Ricardo Flores Magón, and Lenin—a mixed legacy of pre-Marxist and non-Marxist authoritarian and libertarian communists. The second half of the study scrutinizes the (...) philosophy of nature and history that Sandino made his own. Hodges delves deeply into this philosophy as the supreme and final expression of Sandino's communism and traces its sources in the Gnostic and millenarian occult undergrounds. This results in a rich study of the ways in which Sandino's revolutionary communism and communist spirituality intersect—a spiritual politics that Hodges presents as more realistic than the communism of Karl Marx. While accepting the current wisdom that Sandino was a Nicaraguan liberal and social reformer, Hodges also makes a persuasive case that Sandino was first and foremost a communist, although neither of the Marxist nor anarchist variety. He argues that Sandino's eclectic communist spirituality was more of an asset than a liability for understanding the human condition, and that his spiritual politics promises to be more relevant than Marxism-Leninism for the twenty-first century. Indeed, Hodges believes that Sandino's holistic communism embraces both deep ecology and feminist spirituality—a finding that is sure to generate lively and productive debate. (shrink)

To the claim that Marx has no concept of human nature after 1845 and is not prescriptive, I reply that his work only makes sense in the light of his definition of the human being as creator and producer of himself through his own productive activity; otherwise, there is no reason that labor should “naturally” belong to the laborer, since other animals live from each other’s labor and exploitation is natural Marx’s rejection of exploitation is an ethical principle. On the (...) other hand, I attack the narrow human chauvinism of Marxists which lacks environmental consciousness and concern for other species; I label it “eco-imperialism.” Marx had several important insights, but his work in general was not always free of the limitations of his age; I try to point to those insights most instructive in our time with regard to the problems of environment. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Scepticism About Persons in Book II of Hume’s TreatiseDonald C. AinslieBook ii of Hume’s Treatise—especially its first two Parts on the “indirect passions” of pride, humility, love, and hatred—has mystified many of its interpreters.1 Hume clearly thinks these passions are important: Not only does he devote more space to them than to his treatment of causation, but in the “Abstract” to the Treatise, he tells us that Book II (...) “contains opinions that are altogether as new and extraordinary” (T 659) as those found in Book I. And, he says, these opinions constitute “the foundation” (T 646) for his treatment of morals and politics in Book III.2 The mystery arises, however, because in the actual text of [End Page 469] Book II Hume never spells out what makes his opinions on the passions “new and extraordinary,” nor why they are foundational for his moral theory.Thus some of his interpreters, notably Norman Kemp Smith, conclude that Hume was simply mistaken in his assessment of his treatment of the passions. While his accounts of the will and of motivation (in the early Sections of Part iii of Book II) are significant, Kemp Smith takes the extended analysis of the indirect passions to spring merely from his misplaced enthusiasm for associationist psychology. As such, the philosophical lessons to be learned from the first two Parts of Book II are slim.3 Páll Árdal, in contrast, tries to construct for Hume what he seems to have omitted—a philosophical rationale for his obvious interest in the indirect passions. Árdal starts by drawing attention to the role these passions play in Hume’s moral philosophy, in particular, his repeatedly connecting the indirect passions to the moral sentiments of approval and disapproval. Árdal concludes that Hume means to equate the moral sentiments with particular kinds of indirect passions. The first two Parts of Book II are of interest, on Ardal’s reading, because it is there that he shows us how moral sentimentalism can be founded on something more fully naturalistic than Hutcheson’s somewhat mysterious “moral sense.”4I argue against Árdal’s interpretation in §2. But this reopens the problem of accounting for Hume’s interest in the indirect passions. I offer my view in §§3–5 where, like Árdal, I provide a reconstruction of Hume’s discussion of these passions in order to show how it has an underlying philosophical motivation. My claim is that Hume relies on the indirect passions to explain how we form beliefs about persons as bearers of features that make them into who [End Page 470] they are. It is by feeling an indirect passion towards someone that we think of her as more than accidentally related to some quality, such as her country, her riches, her family, or even her character traits. In support of my interpretation I point to the many parallels Hume draws between the indirect passions and the associative mechanism he offers to explain our forming causal beliefs (I.iii). And I suggest that, just as Hume’s associative explanation of causal beliefs is necessitated by his scepticism about intrinsic “necessary connexions,” so also his associative mechanism for our beliefs about persons—the indirect passions—is necessitated by a certain kind of scepticism about persons. This is not the scepticism about persons that we find in “Of personal identity” (I.iv.6), where Hume argues against the view that our perceptions inhere in a simple soul; it is rather a scepticism about there being intrinsic features of persons that define them as who they are.But, before I explain in more detail what my claim amounts to, it will help to have available a brief description of the mechanism that Hume’s takes to explain the indirect passions.1. THE MECHANISM FOR THE INDIRECT PASSIONSA passion, for Hume, is a simple impression felt in response to various circumstances. Because of their simplicity, we cannot define passions by putting their characteristic feeling into words; instead, Hume thinks, we can only delineate “such circumstances, as attend them” (T 277). Passions are indirect if those circumstances include as an outcome the focusing of attention onto a person... (shrink)

Benefit/cost analysis is a technique for evaluating programs, procedures, and actions; it is not a moral theory. There is significant controversy over the moral justification of benefit/cost analysis. When a procedure for evaluating social policy is challenged on moral grounds, defenders frequently seek a justification by construing the procedure as the practical embodiment of a correct moral theory. This has the apparent advantage of avoiding difficult empirical questions concerning such matters as the consequences of using the procedure. So, for example, (...) defenders of benefit/cost analysis (BCA) are frequently tempted to argue that this procedurejust isthe calculation of moral Tightness – perhaps that what itmeansfor an action to be morally right is just for it to have the best benefit-to-cost ratio given the accounts of “benefit” and “cost” that BCA employs. They suggest, in defense of BCA, that they have found the moral calculus – Bentham's “unabashed arithmetic of morals.” To defend BCA in this manner is to commit oneself to one member of a family of moral theories (let us call thembenefit/cost moral theoriesorB/C moral theories) and, also, to the view that if a procedure is (so to speak) the direct implementation of a correct moral theory, then it is a justified procedure. Neither of these commitments is desirable, and so the temptation to justify BCA by direct appeal to a B/C moral theory should be resisted; it constitutes an unwarranted short cut to moral foundations – in this case, an unsound foundation. Critics of BCA are quick to point out the flaws of B/C moral theories, and to conclude that these undermine the justification of BCA. But the failure to justify BCA by a direct appeal to B/C moral theory does not show that the technique is unjustified. There is hope for BCA, even if it does not lie with B/C moral theory. (shrink)