In people with chronic low back pain, maladaptive structural and functional changes on a cortical level have been identified. On a functional level, somatosensory cortical excitability has been shown to be reduced in chronic pain conditions, resulting in cortical disinhibition. The occurrence of structural and/or functional maladaptive cortical changes in people with CLBP could play a role in maintaining the pain. There is currently no measurement protocol for cortical excitability that employs stimulation directly to the lower back. We developed a (...) protocol for the measurement of single pulse somatosensory evoked potential waveforms and paired-pulse behavior generated from sensory nerves of the lower back and quantified its test–retest reliability in a sample of 30 healthy individuals to gain insights into the normal variability of cortical responses, which could then be compared to results from people with CLBP. We investigated cortical excitability by measuring SEPs and PPB. PPB was defined as the ratio of the amplitude of the second cortical response divided by the first cortical response. A2s was determined by subtracting the response to single-pulse stimuli from the paired pulse stimuli response to account for linear superposition effects. The test–retest reliability of the protocol was very poor with no evidence of systematic bias but a high amount of random variability between sessions. There was no significant difference in the right side PPB for session 1 and session 2 ; mean session difference [ = −0.44 ; t = −1.17, p = 0.26]. The ICC3.1 for the outlier-removed right side PPB were 0.19 and 0.43 for left side PPB. This finding potentially has wider implications for PPB protocols. If these findings were replicated in other groups and other nerves, it would question the validity of this measure more generally. However, these findings are restricted to healthy people and sensory nerves of the lower back and may not be generalizable. (shrink)

THE PARADOXES OF CONFIRMATION ARE CONSTITUTED BY THE CONTRADICTIONS ARISING FROM THE CONJUNCTION OF THREE PRINCIPLES OF CONFIRMATION - NICOD’S CRITERION, THE EQUIVALENCE CONDITION, AND WHAT THE PAPER CALLS THE SCIENTIFIC LAWS CONDITION. THE PAPER DISCUSSES IN DETAIL THE VARIOUS SOLUTIONS PROVIDED BY ABANDONING ONE OF THE PRINCIPLES. IN THE END IT FINDS NICOD’S CRITERION FALSE, BUT FINDS THE EXPLANATIONS GIVEN BY H.G. ALEXANDER AND OTHERS OF WHY NICOD’S CRITERION IS FALSE THEMSELVES UNSATISFACTORY. IT THEN PROVIDES A MORE ADEQUATE ACCOUNT (...) OF THE CIRCUMSTANCES IN WHICH "RA.BA" CONFIRMS "ALL R’S ARE B". (shrink)

We generalize two well-known model-theoretic characterization theorems from propositional modal logic to first-order modal logic. We first study FML-definable frames and give a version of the Goldblatt–Thomason theorem for this logic. The advantage of this result, compared with the original Goldblatt–Thomason theorem, is that it does not need the condition of ultrafilter reflection and uses only closure under bounded morphic images, generated subframes and disjoint unions. We then investigate Lindström type theorems for first-order modal logic. We show that FML has (...) the maximal expressive power among the logics extending FML which satisfy compactness, bisimulation invariance and the Tarski union property. (shrink)

An algebraic semantics, based on factor algebras, for one-way and two-way implicative verbs is proposed. Implicative verbs denote elements of filters or of ideals generated by identity functions in factor algebras. This semantics explains in particular the problem of implicational equivalence raised by two-way implicative verbs, and shows that the negation necessary to establish the implicativity of these verbs is the negation which preserves the presuppositions of sentences with implicative verbs. In addition, it follows from the proposed semantics that any (...) two implicative verbs denoting in the same algebra but belonging to different categories, are semantically related. (shrink)

The problems and the history of contacts between distant continents in bygone ages and long before the age of fast and easy travel, have always fascinated both professional scholars and the interested public. Was ancient history really nothing but the history of co-existing and isolated geographic, cultural and political “islands?” Already at school we learned too much about migrations of peoples, economic contacts, influences on art styles, conquests, and the rise, expansion and fall of empires to believe that. The (highly (...) improbable) theory that certain archaeological finds in America suggest, or even prove, Mediterranean influence (e.g., the arrival of Phoenician ships), or the alleged Viking discovery of America centuries before Columbus, or Thor Heyerdahl's adventurous journey to prove South American influence on remote Pacific islands did not fail to cause widespread interest and even excitement (although many scholars still feel that Heyerdahl's epic adventure, thrilling as it is, failed to prove what it set out to prove). The island of Madagascar is pretty close to the African continent, but its language exhibits more points of contact with Polynesian than with African tongues. And the blow-bellows used by Malagache smiths are similar to those used in Malaysia and unlike those known to African metalworkers. Clearly the Polynesians, those great ancient mariners, sailed further than originally seemed likely. Musicologists studying the cantillation of the Hebrew Bible in the liturgy of the ancient Jewish communities on the Malabar coast in India discovered to their surprise that it was similar to the cantillation not of the Babylonian but of the Yemenite Jews! This surprise was, of course, no surprise to those who knew anything about trade-winds and shipping routes between South Arabia and the Indian coast. Historians of religion, even more than general historians, studying the spread and expansion of religious ideas and movements have realised long ago that the beginning of all wisdom is a basic knowledge of economic geography. (shrink)

Arvind Thomas has written a remarkable book. That said, however, it must be quickly added that it is not a book for everyone, not even for all students of medieval literature. It is a very thoughtf...

The aim of this paper is to understand the philosophical role of Collingwood’s proposed logic of question and answer. I shall consider its historical background as a response to Bradley, to the “realists” and to the logical positivists. I shall also consider the similarities and differences between it and modern developments in logics of question and answer and also in anti-realist philosophical logic. In analysing Collingwood’s proposed logic, and its potential for development, I shall attempt a sketch of how it (...) would work out in formal terms. To be sure Collingwood dismissed the symbolism of Russell and Whitehead’s Principia Mathematica as “typographical jargon” and he thought the various artificial logical languages of his time to be “numerous and frightful offspring of propositional logic out of illiteracy”. Nevertheless he did recognise an important role for the logician in articulating his system, namely to identify what it is to be a proposition and what it is to be a question and in doing so to identify what constitutes an “absolute presupposition”. Moreover since Collingwood’s day there have been important developments in logic and semantics, which are expressed through typographical jargon, and yet which are highly relevant to Collingwood’s proposed logic and to its philosophical role. (shrink)

Book Information Self-Governance and Cooperation. By Robert H. Myers. Oxford University Press. Oxford. 1999. Pp. vi + 179. Hardback, £30.00.

As everyone knows, since the end of the Second World War there has been a sensational revival of interest in the non-Christian religions particularly in the United States and in this country. The revival has taken two forms, the one popular, the other academic. The first of these has turned almost exclusively to Hindu and Buddhist mysticism and can be seen as an energetic reaction against the dogmatic and until very recently rigid structure of institutionalised Christianity and a search for (...) a lived experience of the freedom of the spirit which is held to be the true content of mysticism, obscured in Christianity by the basic dogma of a transcendent God, the ‘wholly Other’ of Rudolf Otto and his numerous followers, but wholly untrammelled by any such concept in the higher reaches of Vedanta and Buddhism, particularly in its Zen manifestation. On the academic side the picture is less clear. There is, of course, the claim that the study of religion, like any other academic study, must be subjected to and controlled by the same principles of ‘scientific’ objectivity to which the other ‘arts’ subjects have been subjected, to their own undoing. But even here there would seem to be a bias in favour of the religions of India and the Far East as against Islam, largely, one supposes, in response to popular demand. (shrink)

Regarded as a revisionist historian in the West, Patricia Crone, who wrote many books and articles on various subjects of early Islamic history, was a prolific researcher. The place and role of mawālī, in the Umayyad and Abbāsid society, has been one of the special topics she has been interested in since the very beginning of her academic life. Her works with a revisionist perspective have been faced many criticisms by colleagues, especially the western ones, because of her biased view (...) of the sources written by Muslim authors, her methodology, and her results. However, it is obvious that Crone’s studies on mawālī have positively or negatively affected the Eastern and Western academics in Islamic studies. This article’s main purpose is to reveal Crone’s views on mawālī in Isla-mic society and draw an outline without comment as much as possible. The paper consists of three parts. In the first part, Crone’s revisionist perspective and her works on mawālī have been explained. In the second part, her distinctive views on the mawālī and its origin have been discussed. Finally, in the third part, her findings of the position of mawālī in social, political, military, and economic life during the Rāshidun Caliphs, the Umayyads, and the Abbāsids have been introduced. This study, which tackles Crone’s views on mawālī, aims to encourage the further studies on this subject. (shrink)

The ethics of belief involves an inquiry into what beliefs are legitimate to hold, including religious beliefs. Whatever the criteria determined in such an investigation, adopting a belief that does not meet this criterion is seen as illegitimate and it is considered an ethical violation. English mathematician W. K. Clifford (d. 1879) defines “sufficient evidence” as a criterion in his famous essay, “The Ethics of Belief”. Clifford’s evidence-centered argument becomes one of the most frequent references in the evidentialist objection against (...) theism. It turns out that this argument is not functional in the face of the diversity of beliefs. In this context, different suggestions are presented about what the ethics of belief could be. American philosopher William James (d. 1810), one of the founding names of pragmatism, offers a new proposal. In his classic work, “The Will to Believe”, James claims that Clifford is wrong in seeking the requirement of evidence for all beliefs. Because it is not possible to prove beliefs from the passionate nature of human beings, especially religious beliefs. Following this distinction, James proposes a new criterion for religious beliefs: a religious belief can be vivid or dead, forced or avoidable; and momentous or trivial. If a religious belief is vivid, forced, and momentous, it is necessary to have the courage to believe in it instead of suspending it. James' proposal is often valued as a strong counter-challenge or defense of religious beliefs. However, this argument also has aspects that are open to criticism. One of them is that the will to believe argument concurrently accepts conflicting religious beliefs or, in other words, confronts the issue of religious diversity. According to J. Hick, for example, this argument inevitably results in religious pluralism, even though James does not want to. Contrary to Hick, S. F. Aikin claims that the will to believe does not result in religious pluralism. According to Aikin, who draws attention to the relationship of argument with pragmatism, James obscures religious beliefs and removes them from being claims about truth. Therefore, there is no contradiction in the classical sense. So, which of the objections is valid? Does the will-to-believe argument result in religious pluralism by legitimizing more than one religious belief at the same time, or does it make a purely pragmatic proposition by devaluing religious beliefs? Which religion do I have the right to believe in according to the will to believe? The aim of this article is to provide an answer to the mentioned question. In the article, unlike the current evaluations, it is argued that the argument is closely related to James's theory of knowledge, radical empiricism, not pragmatism as it is usually made. For this purpose, after showing the relationship between the arguments of Clifford and James, the argument will be re-examined in this context and it will be revealed that James has two steps regarding religious beliefs: to make religious beliefs independent from factual beliefs; leaving theism to accept a monistic vision of God and basing religion on mystical experience, which is an emotional experience. As details emerge, it will become clear that James defends a natural religion that excludes traditional religions in his philosophical system and that he defends the beliefs of a humanized religion. With an individual definition of religion based on emotion, James on the one hand ensures the commonality of religious feeling, on the other hand, he makes religion independent from the field of facts. Therefore, with this study, it will be seen that the argument of the will to believe does not aim to legitimize believing in traditional religions, and diversity is not a fundamental problem. (shrink)

Kur’an’ın kendine has birbiriyle irtibatlı kelimeler dünyası bulunmakta-dır. Doğru bir Allah tasavvuru, Allah-âlem, Allah-kul, âlem-kul ilişkisinin nasıl olması gerektiği bu kelime dünyası tarafından anlatılmaktadır. Bu nok-tada Kur’an’da herhangi bir konu anlatılırken aralarında sıkı irtibat olan kelime grupları kullanılmıştır. Örneğin Allah Kur’ân’da kendisini, Rakîb, Alîm, Basîr, Habîr, Latîf vb. lafızlarla insanın idrakine yansıtmakta ve böylece doğru bir Allah Tasavvuru oluşmasını amaçlamaktadır. Bu çalışmada, öncelikle ra-ka-be /رقب kökünün etimolojisi üzerinde durulacaktır. Zira bir kelimenin dildeki asli anlamı ve türevleriyle beraber sonradan kazandığı anlamların (...) tespiti, ilgili kelimenin anlam sahasını keşfetme ile mümkündür. Akabinde bu kökün türevlerinden “Rakîb” kelimesi ile anlam ilişkisi olan ve Yüce Allah’ın Kur’ân’da kendisine nispet ettiği sıfatlarından, Alîm, Basîr, Habîr, Şehîd kelimeler tahlil edilecektir. Bu bağlamda doğrudan olmasa da dolaylı olarak Allah’ın görmesini ve gözetlemesini ifade eden kelimelere ve ilgili âyetlere yer verilecektir. Böylece ra-ka-be kökünün Kur’an siyakındaki anlam sahası ortaya konulmuş olacaktır. (shrink)

The time taken to react voluntarily to a stimulus is far longer than can be accounted for by ordinary processes of nerve conduction and synaptic delay, and varies unpredictably from trial to trial. Though random, the distribution of reaction times usually follows a relatively simple law, which in turn can be explained by the LATER model, in which a decision signal, representing belief in the existence of the target, rises in response to incoming sensory evidence from an initial value to (...) a criterion level at which action is initiated. But the rate of rise fluctuates randomly from trial, to an extent that cannot be explained by sensory noise at the input. These conclusions, confirmed by recording from neurons in the frontal eye fields, suggest that the randomness of reaction time is due to a deliberate, gratuitous, neural process which confers certain biological advantages as well as having implications for general ideas about the nature of ‘free will'. (shrink)

Establishing acceptable norms of behavior and consistent standards of conduct has been part of the human enterprise since the dawn of time. Without principles of ethics and the moral rules that affect individual behavior, humankind would plunge into a state of chaotic indifference, insecurity, and unending fear. But while few question the need for moral guidance, a growing number of people believe that the only ethic worth considering must rest on a biblical foundation. Is morality dependent upon God and "revealed (...) truths" found in scripture? Must this claim be accepted without question lest we risk the torment of eternal damnation for questioning it? Without critical evaluation and careful scrutiny, there is little hope of distinguishing truth from unfounded belief. How valuable is the Bible as a source for ethical truth? Do the scriptures truly have the insight needed to guide humankind safely through the moral dilemmas of modern society? What constitutes a biblical ethic? Should the Bible be construed as the only basis for moral teaching? Is it really the final authority on moral issues, or are there secular alternatives that can serve as guides to acceptable conduct within the human community? A distinguished group of social philosophers, biblical scholars, and ethicists met at the University of Richmond, Virginia, under the aegis of the Committee for the Scientific Examination of Religion and its Biblical Criticism Research Project, to address these and related questions. The essays in this provocative work demonstrate a diversity of perspective and breadth of insight that will shed much needed light on the nature of ethics. The contributors to this volume include: Robert S. Alley, Joe Edward Barnhart, Joseph L. Blau, Frank E. Eakin, Jr., Lewis S. Feuer, Joseph Fletcher, Theodor H. Gaster, James H. Hall, R. Joseph Hoffmann, Paul Kurtz, Gerald A. Larue, John Priest, Ellis Rivkin, Richard L. Rubenstein, and Richard Taylor. (shrink)

Nietzsche’s perspectivism has received restricted and unrestricted interpretations. The latter take the cognitive effects of ‘perspectives’ to be pervasive and general; the former argue they are restricted to special subject matters, have limited effects, or are not essentially cognitive at all. I argue on textual grounds that Nietzsche was committed to the unrestricted view. Comparison to A.W. Moore’s treatment of perspectival representation in Points of View illuminates both the nature of perspectivism and key arguments needed to defend it. Nietzschean perspectivism (...) must deny the very possibility of absolute representations (sensu Moore), and to do so, it must block a form of argument that promises to integrate perspectival representations into progressively less restricted, and ultimately absolute, representations of the world. Such arguments depend on a strong assumption about the unity of the independent world, which Moore accepts and Nietzsche denies. Nietzsche’s pluralism about perspectives thereby turns out to rely on pluralism about the world, which shapes his understanding of us as essentially bounded cognitive agents. Nietzsche holds that the longing for absolute representation manifest in Moore, Leibniz, and many other philosophers, which aspires to overcome the limitations of perspective, amounts to ascetic self-denial about our cognitive condition. (shrink)

Editors and writers on the prosody of Plautus and Terence disagree about the prosody of the final -a in the nominative and vocative of proper names taken from the Greek First Declension. The fact that they are often quoted as examples of syllaba anceps either at the diaeresis of longer iambic lines or at loci Iacobsohniani would seem to imply that they normally scan as Latin First Declension nouns with short -a in the nominative and vocative singular. So R. Kauer (...) in the commentary of his edition of Terence's Andria on line 301 writes ‘die griechischen Eigennamen auf -a —Sosia, Byrria, Chaerea, Phaedria usw.—haben bei Terenz stets kurzes -a’. (shrink)