Background: Electroconvulsive therapy is one of the most effective treatments for major depressive disorder. Recently, there has been increasing attention to evaluate the effect of ECT on resting-state functional magnetic resonance imaging. This study aims to compare rs-fMRI of depressive disorder patients with healthy participants, investigate whether pre-ECT dynamic functional network connectivity network estimated from patients rs-fMRI is associated with an eventual ECT outcome, and explore the effect of ECT on brain network states.Method: Resting-state functional magnetic resonance imaging data were (...) collected from 119 patients with depression or depressive disorder, and 61 healthy participants, with an age mean of 52.25 years old. The pre-ECT and post-ECT Hamilton Depression Rating Scale were 25.59 ± 6.14 and 11.48 ± 9.07, respectively. Twenty-four independent components from default mode and cognitive control network were extracted, using group-independent component analysis from pre-ECT and post-ECT rs-fMRI. Then, the sliding window approach was used to estimate the pre-and post-ECT dFNC of each subject. Next, k-means clustering was separately applied to pre-ECT dFNC and post-ECT dFNC to assess three distinct states from each participant. We calculated the amount of time each subject spends in each state, which is called “occupancy rate” or OCR. Next, we compared OCR values between HC and DEP participants. We also calculated the partial correlation between pre-ECT OCRs and HDRS change while controlling for age, gender, and site. Finally, we evaluated the effectiveness of ECT by comparing pre- and post-ECT OCR of DEP and HC participants.Results: The main findings include depressive disorder patients had significantly lower OCR values than the HC group in state 2, where connectivity between cognitive control network and default mode network was relatively higher than other states, Pre-ECT OCR of state, with more negative connectivity between CCN and DMN components, is linked with the HDRS changes. This means that those DEP patients who spent less time in this state showed more HDRS change, and The post-ECT OCR analysis suggested that ECT increased the amount of time DEP patients spent in state 2.Conclusion: Our finding suggests that dynamic functional network connectivity features, estimated from CCN and DMN, show promise as a predictive biomarker of the ECT outcome of DEP patients. Also, this study identifies a possible underlying mechanism associated with the ECT effect on DEP patients. (shrink)

Mirrored-self misidentification is the delusional belief that one's own reflection in the mirror is a stranger. In two experiments, we tested the ability of hypnotic suggestion to model this condition. In Experiment 1, we compared two suggestions based on either the delusion's surface features (seeing a stranger in the mirror) or underlying processes (impaired face processing). Fifty-two high hypnotisable participants received one of these suggestions either with hypnosis or without in a wake control. In Experiment 2, we examined the extent (...) to which social cues and role-playing could account for participants' behaviour by comparing the responses of 14 hypnotised participants to the suggestion for impaired face processing (reals) with those of 14 nonhypnotised participants instructed to fake their responses (simulators). Overall, results from both experiments confirm that we can use hypnotic suggestion to produce a compelling analogue of mirrored-self misidentification that cannot simply be attributed to social cues or role-playing. (shrink)

This book brings together some of the best minds in neurology and philosophy to discuss the concept of personal identity and the moral dimensions of treating ...

The author argues that there is a sharp contrast between Plato's earlier teleological explanation of nature and his later conception. In the Phaedo Anaxagoras' νοṽς as a teleological principle is rejected, the forms taking its place, in the Philebus the existence of a νοṽς explaining order and finality in nature, is strictly demonstrated. After that nature and consequences of this new doctrine are briefly discussed : the ineffable character of the transcendent cause of the world ; the reduction of the (...) number of the Forms to those of substances in nature ; the causality of νοṽς as an immanent and intermediate one ; the foundation of a mathematical science of nature. Thirdly the author makes an effort to reconstruct the philosophical grounds of this development, starting from the three theses, on which the argumentation of the Philebus is based. 1) νοṽς can only exist in a soul. It is argued that the dynamic conception of soul in the Phaedrus logically leads to the conclusion, that νοṽς also is movement . 2) To explain cosmic order and finality a νοṽς has to be accepted. This new idea occurs for the first time in the Sophistes and in the myth of the Politicus. 3) Cosmic order has a mathematical and astronomical character. This aspect is absent before the Philebus and seems to have been a consequence of Plato's discovery of the regularity in the planitary motions . Finally the author thinks he can indicate in the Sophistes the turning-point in the theory of Forms, as a result of the extension of the notion of being. (shrink)

A total of 944 expressed sequence tags generated 2212 EST loci mapped to homoeologous group 1 chromosomes in hexaploid wheat. EST deletion maps and the consensus map of group 1 chromosomes were constructed to show EST distribution. EST loci were unevenly distributed among chromosomes 1A, 1B, and ID with 660, 826, and 726, respectively. The number of EST loci was greater on the long arms than on the short arms for all three chromosomes. The distribution of ESTs along chromosome arms (...) was nonrandom with EST clusters occurring in the distal regions of short arms and middle regions of long arms. Duplications of group 1 ESTs in other homoeologous groups occurred at a rate of 35.5%. Seventy-five percent of wheat chromosome 1 ESTs had significant matches with rice sequences, where large regions of conservation occurred between wheat consensus chromosome 1 and rice chromosome 5 and between the proximal portion of the long arm of wheat consensus chromosome 1 and rice chromosome 10. Only 9.5% of group 1 ESTs showed significant matches to Arabidopsis genome sequences. The results presented are useful for gene mapping and evolutionary and comparative genomics of grasses. (shrink)

A naturalistic theory of intentionality is proposed that differs from previous evolutionary and tracking theories. Full-blown intentionality is constructed through a series of evolvable refinements. A first, minimal version of intentionality originates from a conjectured internal process that estimates an organism’s own fitness and that continually modifies the organism. This process produces the directedness of intentionality. The internal estimator can be parsed into intentional components that point to components of the process that produces fitness. It is argued that such intentional (...) components can point to mistaken or non-existing entities. Different Fregian senses of the same reference correspond to different components that have different roles in the estimator. Intentional components that point to intentional components in other organisms produce directedness towards semi-abstract entities. Finally, adding a general, population-wide means of communication enables intentional components that point to fully abstract entities. Intentionality thus naturalized has all of its expected properties: being directed; potentially making errors; possibly pointing to non-existent, abstract, or rigid entities; capable of pointing many-to-one and one-to-many; distinguishing sense and reference; having perspective and grain; and having determinate content. Several examples, such as ‘swampman’ and ‘brain-in-a-vat’, illustrate how the theory can be applied. (shrink)

A number of recent books and articles have defended the concept of de re modality. Although Slote makes some contributions toward its defense, he is mainly concerned with using de re modality to provide analyses of key concepts in metaphysics, including "process", "event", "change", "physical body", "self", "future", "past", "fact", and "state of affairs". Each concept is defined by essence and accident, that is, by specifying what is either accidental or essential to the entities covered by the concept. Such definitions (...) focus on the ontological relationships of exact similarity, necessary coexistence, and logical dependence. They provide the necessary existence conditions for processes, events, selves, etc. These existence conditions are a major concern in metaphysical questions about the relationship between psychic and physical existence, selves and their experiences, and things and their alterations. Thus Slote provides an important analytical procedure for this type of metaphysical problem. (shrink)

The Eton Latin Grammar, For Use in the Higher Forms. By Francis Hay Rawlins, M.A., and William Ralph Inge. London: Murray, 1888. 6s.The Revised Latin Primer. By Benjamin Hall Kennedy, D.D. Longmans, 1888. 2s. 6d.The New Latin Primer. Edited by J. P. Postgate, M.A., and C. H. Vince, M.A. Cassell, 1888. 2s. 6d.The Shorter Latin Primer, by Dr. Kennedy. Longmans, 1888. 1s.

Feedback control in neural systems is ubiquitous. Here we study the mathematics of nonlinear feedback control. We compare models in which the input is multiplied by a dynamic gain (multiplicative control) with models in which the input is divided by a dynamic attenuation (divisive control). The gain signal (resp. the attenuation signal) is obtained through a concatenation of an instantaneous nonlinearity and a linear low-pass filter operating on the output of the feedback loop. For input steps, the dynamics of gain (...) and attenuation can be very different, depending on the mathematical form of the nonlinearity and the ordering of the nonlinearity and the filtering in the feedback loop. Further, the dynamics of feedback control can be strongly asymmetrical for increment versus decrement steps of the input. Nevertheless, for each of the models studied, the nonlinearity in the feedback loop can be chosen such that immediately after an input step, the dynamics of feedback control is symmetric with respect to increments versus decrements. Finally, we study the dynamics of the output of the control loops and find conditions under which overshoots and undershoots of the output relative to the steady-state output occur when the models are stimulated with low-pass filtered steps. For small steps at the input, overshoots and undershoots of the output do not occur when the filtering in the control path is faster than the low-pass filtering at the input. For large steps at the input, however, results depend on the model, and for some of the models, multiple overshoots and undershoots can occur even with a fast control path. (shrink)

Tragic allusions to contemporary events are not, as a rule, taken on trust, but the Eumenides of Aeschylus provides three notable exceptions. The view that the Athenian-Argive alliance of 462 B.C. is reflected in Eum. 287–91, 667–73, anc^ 762–74 has won wide acceptance, although no systematic theory of the relation between the drama and the historical context has yet been advanced. If demonstration in detail has been wanting, the view seems to be supported by three general considerations. In the first (...) place, the emphasis put on the dramatic declaration of friendship exceeds the requirements of the plot: the acquittal of Orestes rather than his gesture of gratitude to Athens is the natural climax of this part of the drama, 1–777, and yet the gesture has been considered important enough to be heralded twice before it is actually made in 762–74. Secondly, Orestes' declaration is not limited in duration but binding on his successors in perpetuity; it seems, therefore, to have been deliberately formulated in order to react upon historical fact. Thirdly, in instituting the Council of the Areopagus and dwelling upon the importance of its constitutional function , Aeschylus seems to have gone out of his way to pass judgement of some sort on the recent reforms of Ephialtes and Pericles; the theory that he has also appreciated their foreign policy on the tragic stage is thus relieved of some of the obvious practical objections and made inherently more plausible. (shrink)

Tragic allusions to contemporary events are not, as a rule, taken on trust, but the Eumenides of Aeschylus provides three notable exceptions. The view that the Athenian-Argive alliance of 462 B.C. is reflected in Eum. 287–91, 667–73, anc^ 762–74 has won wide acceptance, although no systematic theory of the relation between the drama and the historical context has yet been advanced. If demonstration in detail has been wanting, the view seems to be supported by three general considerations. In the first (...) place, the emphasis put on the dramatic declaration of friendship exceeds the requirements of the plot: the acquittal of Orestes rather than his gesture of gratitude to Athens is the natural climax of this part of the drama, 1–777, and yet the gesture has been considered important enough to be heralded twice before it is actually made in 762–74. Secondly, Orestes' declaration is not limited in duration but binding on his successors in perpetuity; it seems, therefore, to have been deliberately formulated in order to react upon historical fact. Thirdly, in instituting the Council of the Areopagus and dwelling upon the importance of its constitutional function, Aeschylus seems to have gone out of his way to pass judgement of some sort on the recent reforms of Ephialtes and Pericles; the theory that he has also appreciated their foreign policy on the tragic stage is thus relieved of some of the obvious practical objections and made inherently more plausible. (shrink)

My object in this paper is to suggest a few reflections on some themes in Bentham's work which others as well as I have noted, without perhaps developing them as fully as might with advantage be done. There will be nothing like full development in the limited compass of what is said here, but what is said may at least indicate possible directions for further exploration. The greater part of the paper will be concerned with the notion of natural authority; (...) but I want to begin by taking a broader, though no doubt rather superficial, view of the role in Bentham's thinking of the concepts of ‘nature’ and ‘the natural’. (shrink)

The object of this article is to examine, with the work of Jeremy Bentham as the principal example, one strand in the complex pattern of European social theory during the second half of the eighteenth century. This was of course the period not only of the American and French revolutions, but of the culmination of the movements of thought constituting what we know as the Enlightenment. Like all great historical episodes, the Enlightenment was both the fulfilment of long-established processes and (...) the inauguration of new processes of which the fulfilment lay in the future. Thus the seminal ideas of seventeenth-century rationalism realized and perhaps exhausted their potentialities in the eighteenth-century Enlightenment. The ideas with which this article is concerned, however—conveniently grouped and labelled as the ideas of utilitarianism—only began to achieve systematic development in these later decades of the eighteenth century. Within that period—during the first half and more of Bentham's long life—attempts to apply those ideas to the solution of social problems met largely with failure and frustration. Yet unrealized potentialities remained, the realization of which was reserved for a time when the world of the philosophes no longer existed. The movements for social and political reform which have played so large a part in modern history since the French Revolution may be judged in widely differing ways; but whatever the verdict, these movements surely cannot be understood without due consideration of that part of their origins which lies in eighteenth-century utilitarianism. (shrink)

The contributions to this special collection concern issues and problems discussed in or related to the work of Wesley C. Salmon. Salmon has long been noted for his important work in the philosophy of science, which has included research on the interpretation of probability, the nature of explanation, the character of reasoning, the justification of induction, the structure of space/time and the paradoxes of Zeno, to mention only some of the most prominent. During a time of increasing preoccupation with historical (...) and sociological approaches to under standing science (which characterize scientific developments as though they could be adequately analysed from the perspective of political movements, even mistaking the phenomena of conversion for the rational appraisal of scientific theories), Salmon has remained stead fastly devoted to isolating and justifying those normative standards distinguishing science from non-science - especially through the vindi cation of general principles of scientific procedure and the validation of specific examples of scientific theories - without which science itself cannot be (even remotely) adequately understood. In this respect, Salmon exemplifies and strengthens a splendid tradi tion whose most remarkable representatives include Hans Reichenbach, Rudolf Carnap and Carl G. Hempel, all of whom exerted a profound influence upon his own development. (shrink)

In this book, James Lesher presents the Greek texts of all the surviving fragments of Xenophanes' teachings, with an original English translation on facing pages, along with detailed notes and commentaries and a series of essays on the philosophical questions generated by Xenophanes' remarks.

Α Ν 0 Ι Ε Ν Τ Α Ν ϋ Μ Ε Ο Ι Ε V Α Ι, ΡΗΙΙ,ΟδΟΡΗΥ ΠΕ \ν III, Ρ - Μ Α Ν 5 Ι Ο Ν ΟΕΝΤΒΕ 5βΠ88 1 II ιηεΐ (1ε δίβυη νβη Ιιοί Βοΐβίδοΐι λ'αΐίοηααΐ ΌΟΟΓ ...

This collection of essays is the definitive version of a widely discussed debate over the origins of the New Theory of Reference. In new articles, written especially for this volume, Quentin Smith and Scott Soames, the original participants in the debate, elaborate their positions on who was responsible for the ideas that Saul Kripke presented in his Naming and Necessity. They are joined by John Burgess, who weighs in on the side of Soames, while Smith adds a further dimension in (...) discussing the contributions of philosophers such as Follesdal, Geach, Hintikka, and Plantinga. Also included are lengthy excerpts from Follesdal's 1961 Harvard dissertation and a careful examination by Sten Lindstrom of the respective contributions of Kripke and Stig Kanger to the development of modal semantics. The collection will be essential reading for anyone acquainted with these influential ideas. (shrink)