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1.
2.
On–off phenomena in Parkinson's disease (PD) are unpredictable motor fluctuations associated with long-term levodopa use. Mood fluctuations have been found to coincide with the motor fluctuations in that depression and anxiety increase while the person with PD is in the off state. What has been relatively unexplored is whether those persons with PD who have on–off phenomena differ psychologically in fundamental ways from those who do not have on–off phenomena. In the present study, depression and anxiety symptoms were assessed in 36 persons with PD (n = 14 with on–off phenomena, n = 22 without on–off phenomena). All those with on–off phenomena were assessed in their on state. Those persons with PD with on–off phenomena had significantly higher levels of anxiety than those without on–off phenomena. However, both groups, regardless of on–off status, were mildly depressed. Neurobiological interpretations of the results implicate the locus coeruleus in the pathogenesis of both on–off phenomena and anxiety, whereas psychological interpretations of the results involve the issues of learned helplessness and control over health symptoms in PD.  相似文献   

3.
Harvey  CHARLES W. 《Synthese》1997,111(1):15-30
Responding to claims to the contrary, this essay shows how liberal education, the education of critical exposure, indoctrinates students into a style of belief and belief formation. It argues that a common liberal view about what constitutes freedom from indoctrination is precisely the form of indoctrination feared by many conservative communitarians. While I support the style and procedures of liberal education, I argue that we cannot excise all indoctrinating components from it by semantic, logical or epistemic analyses of what indoctrination or education means.  相似文献   

4.
This commentary on Karl Jansen's ketamine model for the near-death experience expands upon and raises additional questions about several issues and hypotheses: self-experimentation as a source of data; ketamine's similarities to and differences from classical hallucinogens; the need for quantification of unusual subjective states; clinical research and toxicological implications of this model; drugs as gateways to religious states; and evolutionary versus religious significance of naturally occurring compounds released in the near-death state. I suggest future research that could help explicate several of these areas.Formerly Associate Professor of Psychiatry at the University of New Mexico School of Medicine  相似文献   

5.
In John McDowell's recent Woodbridge Lectures at Columbia University, he characterizes Wilfrid Sellars's master thought, in Empiricism and the Philosophy of Mind, as drawing a line between two types of characterizations of states that occur in people's mental lives: Above the line are placings in the logical space of reasons, and below it are characterizations that do not do that (McDowell, 1998, p. 433). In this essay, I ask what would be required for ethics to be above the line. More precisely, what would be necessary to characterize episodes as actions, and persons as agents, so as for them to be answerable to moral criticism in light of rationally relevant considerations. The requirements are twofold: that practical reason motivate in virtue of the content of its deliverances; and that there be a will which is sensitive to those deliverances, and which chooses freely. A widespread procedural account of practical reason is examined and found insufficient to place ethics above the line; and a suspicion is raised that McDowell himself, and Jonathan Dancy, do not have a robust enough conception of will to avoid the below the line ethics they accuse their opponents of defending.  相似文献   

6.
Several of the so-called fallacies in Aristotle are not in fact mistaken inference-types, but mistakes or breaches of rules in the questioning games which were practiced in the Academy and in the Lyceum. Hence the entire Aristotelian theory of fallacies ought to be studied by reference to the author's interrogative model of inquiry, based on his theory of questions and answers, rather than as a part of the theory of inference. Most of the fallacies mentioned by Aristotle can in fact be diagnosed by means of the interrogative model, including petitio principii, multiple questions, babbling, etc., and so can Aristotle's alleged anticipation of the fallacy of argumentum ad hominem. The entire Aristotelian conception of inquiry is an interrogative one. Deductive conclusions caught Aristotle's attention in the form of answers that every rational interlocutor must give, assuming only his own earlier answers. Several features of Aristotle's methodology can be understood by means of the interrogative model, including the role of endoxa in it. Theoretically, there is also considerable leeway as to whether fallacies are conceived of as mistakes in questioning or as breaches of the rules that govern questioning games.  相似文献   

7.
Wayne A. Davis 《Erkenntnis》2004,61(2-3):257-281
David Lewis, Stewart Cohen, and Keith DeRose have proposed that sentences of the form S knows P are indexical, and therefore differ in truth value from one context to another.1 On their indexical contextualism, the truth value of S knows P is determined by whether S meets the epistemic standards of the speakers context. I will not be concerned with relational forms of contextualism, according to which the truth value of S knows P is determined by the standards of the subject Ss context, regardless of the standards applying to the speaker making the knowledge claim. Relational contextualism is a form of normative relativism. Indexical contextualism is a semantic theory. When the subject is the speaker, as when S is the first person pronoun I, the two forms of contextualism coincide. But otherwise, they diverge. I critically examine the principal arguments for indexicalism, detail linguistic evidence against it, and suggest a pragmatic alternative.  相似文献   

8.
It is shown that de re formulas are eliminable in the modal logic S5 extended with the axiom scheme x x.  相似文献   

9.
Part of Slavoj iek's philosophical background is located in German idealism. In this article, his relation to German idealism is critically assessed, and the key to this assessment is found in iek's favorite medium: film. In film, reality can only appear as a new image, replacing an old reality as fictitious, the real itself, however, remains unreachable by thought. At this point, a parallel with German idealism appears: it was Kant who turned reality into a desert, and Hegel and Schelling who tried to retrieve it. Siding with Adorno and Heidegger, iek reaches a negative conclusion that does justice to neither German idealism nor indeed Schelling. His use of German idealism is one-sided and selective, regardless of the fact that it allows him to formulate an adequate critique of Western society. Perceiving a parallel between iek's conception of cinema and Kantian imagination [Einbildungskraft], the final conclusion is that he approaches German idealism not in terms of its conceptual system-character, but in terms of sensual multiplicity, not seeking unity in it, but precisely fragmentation.  相似文献   

10.
The definition of spirituality poses a variety of problems for the development of theory and research, as well as practical problems for persons interested in promoting the spiritual well-being of older adults. Although any definition of spirituality is problematic, a definition is proposed that comes out of the writer's clinical experience and is relevant to his understanding of the aging process in different cultural and religious contexts. Two case studies are presented to illustrate the relevance of the definition to the experience of older persons from different cultural and religious backgrounds. Reflections on the case studies suggest ways that an appropriately trained advocate might have helped the persons in these illustrations make changes in their situations that might have improved the quality of their lives. Material from the case studies is also used to clarify differences among terms such as spirituality, religion, religiosity, and piety. The paper proposes to be a contribution to a theoretical foundation for studying and working with spirituality in older adults.  相似文献   

11.
Byrne  Alex 《Philosophical Studies》2002,108(1-2):213-222
This paper discusses a number of themes and arguments in The Quest for Reality: Stroud's distinction between philosophical and ordinary questions about reality; the similarity he finds between the view that coloris unreal and the view that it is subjective; his argument against thesecondary quality theory; his argument against the error theory; and the disappointing conclusion of the book.  相似文献   

12.
Zusammenfassung Mit Hilfe eines 2×2×2-Designs wurde die Wirkung der Anzahl der Signalflächen, Anzahl der irrelevanten Reize und Art der Motivation auf die Vigilanzleistung untersucht. Dabei zeigte sich, daß die Wahrscheinlichkeiten von verpaßten Signalen und falschen Alarmen mit der Anzahl der Signalquellen zunehmen. Die Menge der Nicht-Signale gleicher Modalität wie die Signalreize beeinflußt weder die Signalentdeckungen noch die falschen Alarme.Weiterhin wurde versucht, eine Systematisierung von Motivationswirkungen in Vigilanzaufgaben im Rahmen des detection-Modells vorzunehmen. Bei großen Gewinnen für richtige Signalentdeckungen und geringen Verlusten für falsche Alarme (Risiko-Motivation) ergab sich eine wesentlich höhere Entdeckungswahrscheinlichkeit und eine geringfügig höhere Rate von falschen Alarmen als bei geringen Gewinnen für richtige Signalentdeckungen und hohen Kosten für falsche Alarme (Vorsichts-Motivation). Weiterhin zeigte sich unter Risiko-Motivation ein Abfall der Entdeckungswahrscheinlichkeit und bei Vorsichts-Motivation ein Anstieg, während sich die entsprechenden Raten der falschen Alarme im Verlauf der Aufgabe nicht signifikant veränderten.
Experimental application of detection theory to vigilance behaviour
Summary In a 2×2×2-design the effects of number of dials, number of irrelevant stimuli and kind of motivation were combined. It was found out, that probabilities of missed signals and false alarms increased with spatial uncertainty. The number of irrelevant stimuli, which were of equal sensory modality as the relevant stimuli, had no influence either on detection probability or on false alarms rate.Further attempt was made to systematize effects of motivation on vigilance performance in the detection model. With great values for hits and small costs for false alarms (risky motivation) there was an essentially higher detection pobability and a slightly higher false alarms rate than with small values for hits and high costs for false detections (cautious motivation). The probabilities of detections decreased under risky motivation and increased under cautious motivation as the watch prolonged, whereas the corresponding probabilities of false alarms showed no significant changes.


Teil I der Dissertation, die im Januar 1969 der Philosophischen Fakultät der Freien Universität Berlin vorgelegt wurde.  相似文献   

13.
In this paper I argue that Martha Nussbaums Aristotelian analysis of compassion and pity is faulty, largely because she fails to distinguish between (a) an emotions basic constitutive conditions and the associated constitutive or intrinsic norms, (b) extrinsic normative conditions, for instance, instrumental and moral considerations, and (c) the causal conditions under which emotion is most likely to be experienced. I also argue that her defense of compassion and pity as morally valuable emotions is inadequate because she treats a wide variety of objections as all stemming from a common commitment to a Stoic conception of the good. I argue that these objections can be construed as neutral between conceptions of the good. I conclude by arguing that construed in this way there are nonetheless plausible replies to these objections.  相似文献   

14.
In Descartes's philosophy, communicating scientific and philosophical truth does not represent a problem that can be traced back to humanistic rhetoric, meant as the art of persuasion. Descartes states his belief in the eloquence of reason: a clear, precise, and adequately expressed thought cannot fail to convince the listener. This is the measure of the distance between the level of truth and the level of opinion. However, the moment of confrontation with the public is also the very moment when the truth of the new knowledge enters into conflict with other, different conceptions. Education and history influence communication with the result that the distinction between intellectual conviction and persuasion becomes less straightforward. Rational eloquence, as Descartes is well aware, must be articulated in such a way as to avoid any possible language equivocation and to adopt exposition strategies ensuring effective access to readers. The aim of this paper is to illustrate some aspects of this tension as expressed by the writer Descartes with reference to a number of texts (from the Regulae to the Meditationes) that were essential for the elaboration and dissemination of his philosophy.  相似文献   

15.
The essay undertakes to explore the possibilities of mutually fruitful dialogue between moral philosophy and ontology, in particular, the ontology of relations. The latter copes with the question of how relations relate, whereas moral philosophy often ignores the ontological implications of such crucial relations as love and interpersonality. The paper proceeds as follows. First, the ontology of relations is discussed. Second, various examples are analysed. From this, a conception of relation instantiation emerges, according to which to determine which relation actually obtains, one has to take into account (a) the context, (b) the specific content or meaning of the relation, and (c) some action or decision or mode of existence of the relata. This conception suggests that relation instantiation cannot be explained by a single formula. By the help of this conception, Hume's thesis of the identity of killing relations between human and nonhuman beings is questioned. Then, the relation of love is analysed. It is shown that love as a moral relation is perfectly explicable in terms of ontology. Moreover, its essence is best captured by the interrelation of the particulars, the relation of love as a universal, and by the relating action of the particulars. Finally, the alleged relation of universal fraternity (interpersonality as such), linking up each human being to all other human beings, is discussed.  相似文献   

16.
This article explores the concept of phronesis (practical wisdom) in four aging protagonists in Ernest Hemingway's works ranging from the short story A Clean Well-Lighted Place to the novella The Old Man and the Sea. Phronesis represents an understanding of the ways of the world, an acute sensitivity to a critical logic of human existence that can be attained only through extensive experience and suffering. The four aging protagonists are examples of Hemingway's definition of aging productively and profitably by purchasing an inner peace that consists of an intuitive system of continuous adjustment to the exigencies of daily living.  相似文献   

17.
This paper offers an analysis of the notion the quest for identity. The discussion emphasizes the importance of communal belonging, but rejects the view that one ought to belong to the community one was born to. It suggests that the quest for identity may lead individuals to follow many avenues: while some individuals might affirm their inherent affiliations and traditions, others may remain within their community of origin and strive to change its ways, or chose to leave their social group and opt for membership in a new one. This analysis suggests that choice, characteristic of the liberal conception of the person, and rootedness, characteristic of the communitarian conception of the person, both play an important role in the formation of personal identity.  相似文献   

18.
Coming fromI andCl, i.e. from intuitionistic and classical propositional calculi with the substitution rule postulated, and using the sign to add a new connective there have been considered here: Grzegorozyk's logicGrz, the proof logicG and the proof-intuitionistic logicI set up correspondingly by the calculiFor any calculus we denote by the set of all formulae of the calculus and by the lattice of all logics that are the extensions of the logic of the calculus, i.e. sets of formulae containing the axioms of and closed with respect to its rules of inference. In the logiclG the sign is decoded as follows: A = (A & A). The result of placing in the formulaA before each of its subformula is denoted byTrA. The maps are defined (in the definitions of x and the decoding of is meant), by virtue of which the diagram is constructedIn this diagram the maps, x and are isomorphisms, thereforex –1 = ; and the maps and are the semilattice epimorphisms that are not commutative with lattice operation +. Besides, the given diagram is commutative, and the next equalities take place: –1 = –1 and = –1 x. The latter implies in particular that any superintuitionistic logic is a superintuitionistic fragment of some proof logic extension.  相似文献   

19.
Patterson  D. 《Synthese》2003,137(3):421-444
It is often thought that instances of the T-schema such as snow is white is true if and only if snow is white state correspondences between sentences andthe world, and that therefore such sentences play a crucial role in correspondence theories oftruth. I argue that this assumption trivializes the correspondence theory: even a disquotationaltheory of truth would be a correspondence theory on this conception. This discussionallows one to get clearer about what a correspondence theory does claim, and toward the end of thepaper I discuss what a true correspondence theory of truth would involve.  相似文献   

20.
The clinical ethics propounded by Richard Zaner is unique. Partly because of his phenomenological orientation and partly because of his own daily practice as a clinical ethicist in a large university hospital, Zaner focuses on the particular concrete situations in which patients and their families confront illness and injury and struggle toward workable ways for dealing with them. He locates ethical reality in the clinical encounter. This encounter encompasses not only patient and physician but also the patients family and friends and indeed the entire lifeworld in which the patient is still striving to live. In order to illuminate the central moral constituents of such human predicaments, Zaner discusses the often-overlooked features of disruption and crisis, the changed self, the patients dependence and the physicians power, the violation of personal boundaries and their necessary reconfiguring, and the art of listening.  相似文献   

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