Sensory organs are specialized to receive different kinds of input from the outside world. However, common features of their development suggest that they could have a shared evolutionary origin. In a recent paper, Niwa et al.1 show that three Drosophila adult sensory organs all rely on the spatial signals Decapentaplegic and Wingless to specify their position, and the temporal signal ecdysone to initiate their development. The proneural gene atonal is an important site for integration of these regulatory inputs. These results (...) suggest the existence of a primitive sensory organ precursor, which would differentiate according to the identity of its segment of origin. The authors argue that the eyeless gene controls eye disc identity, indirectly producing an eye from the sensory organ precursor within this disc. BioEssays 26:825–828, 2004. © 2004 Wiley Periodicals, Inc. (shrink)

Events—the experiences we think we are having and recall having had—are constructed; they are not what actually occurs. What occurs is ongoing dynamic, multidimensional, sensory flow, which is somehow transformed via psychological processes into structured, describable, memorable units of experience. But what is the nature of the redescription processes that fluently render dynamic sensory streams as event representations? How do such processes cope with the ubiquitous novelty and variability that characterize sensory experience? How are event‐rendering skills acquired and how do (...) event representations change with development? This review considers emerging answers to these questions, beginning with evidence that an implicit tendency to monitor predictability structure via statistical learning is key to event rendering. That is, one way that the experience of bounded events (e.g., actions within behavior, words within speech) arises is with the detection of “troughs” in sensory predictability. Interestingly, such troughs in predictability are often predictable; these regions of predictable‐unpredictability provide articulation points to demarcate one event from another in representations derived from the actual streaming information. In our information‐optimization account, a fluent event‐processor predicts such troughs and selectively attends to them—while suppressing attention to other regions—as sensory streams unfold. In this way, usage of attentional resources is optimized for efficient sampling of the most relevant, information‐rich portions of the unfolding flow of sensation. Such findings point to the development of event‐processing fluency—whether in action, language, or other domains—depending crucially on rapid and continual cognitive reorganization. As knowledge of predictability grows, attention is adaptively redeployed. Accordingly, event experiences undergo continuous alteration. (shrink)

The moral doctrine of Hobbes, in many ways the most interesting of our major British philosophers, is, I think, commonly seen in a false perspective which has seriously obscured its real affinities. This is, no doubt, largely due to the fact that most modern readers begin and end their study of Hobbes's ethics with the Leviathan , a rhetorical and, in many ways, a popular Streitschrift published in the very culmination of what looked at the time to be a permanent (...) revolution, and do not pay such attention to the more calmly argued statements of the same doctrine contained in the Elements of Law , circulated before the outbreak of the Civil War, or the De Cive. (shrink)

Philosophy and Phenomenological Research, EarlyView.

First published in 1903, Taylor endeavours to provide a detailed study of metaphysic as a discipline. Opening with a brief history of metaphysics, the book explores topics including the problem of the metaphysician, the metaphysical method, subdivisions of metaphysics, ontology, reality, cosmology, rational psychology, morality, ethics and religion.

Contents Include: The Early Life of Socrates - The Later Life of Socrates: His Trial and Death - The Thought of Socrates.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain (...) in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

A standard approach to indeterminacy treats ‘determinately’ and ‘indeterminately’ as modal operators. Determinacy behaves like necessity; indeterminacy like contingency. This raises two questions. What is the appropriate modal system for these operators? And how should we interpret that system? Ken Akiba has developed an account of ontic indeterminacy that interprets possible worlds as worldly precisifications. He argues that this account vindicates S4 as the logic of indeterminacy. In this paper I explore one significant and surprising consequence of this view. I (...) do this in two stages. First, I prove a technical result, which I call the Infinite Indeterminacy Theorem. Roughly put, this theorem states that, at any given precisification w, either every instance of indeterminacy admits of never-ending higher-order indeterminacy, or else there's indeterminacy in an infinite amount of distinct atomic formulas. In slogan form: either all indeterminacy is infinitely ascending or else there's infinitely wide indeterminacy. Second, I unpack the metaphysical consequences of this technical result (under its intended interpretation) and assess their plausibility. I conclude that these consequences commit Akiba's theory to highly contentious – and arguably untenable – views about the metaphysics of indeterminacy and related matters. (shrink)

The New Atheists The New Atheists are authors of early twenty-first century books promoting atheism. These authors include Sam Harris, Richard Dawkins, Daniel Dennett, and Christopher Hitchens. The “New Atheist” label for these critics of religion and religious belief emerged out of journalistic commentary on the contents and impacts of their books. A standard observation is … Continue reading New Atheists →.

I must explain at once that these few pages do not attempt or pretend to be anything like a formal review of the recently published posthumous volume of Professor Bowman with the same title. I am precluded from writing such a review partly by the wide range of problems attacked by the author, partly by my own insufficient familiarity with many of the positions of the most recent physical and natural science which are brought under review. I will therefore confine (...) myself, so far as the strict business of the reviewer is concerned, to the single remark that the editor, Professor J. W. Scott, has discharged his difficult task of preparing the book for publication—no easy matter, as will be seen from his Preface—with equal skill and devotion, and has laid himself open to no worse criticism than that there are less than a dozen obvious slight misprints which have escaped detection, but will readily be detected by a careful reader. What I propose to do in the remarks which follow is simply to indicate the very real importance of the book by saying something as to its main purpose and thesis, and the points where I still feel that there is some difficulty or ambiguity about the writer's position which would, no doubt, have been largely cleared up if he had lived to reconstruct the whole six of his Vanuxem Lectures for publication as he has done the first three. (shrink)

In an essay entitled “Freedom and Personality” I have contended that “intelligence is a principle of indetermination within us.” As I find that my argument, though to myself it appears incontrovertible, has not produced conviction in some quarters where I had hoped it might be effective, I can only suppose that, presumably by my own fault, it was not stated as clearly as it should have been. This must be my excuse for returning to the subject; in doing so I (...) shall try to be, to the best of my power, at once brief and lucid. (shrink)

Is it possible to say anything on the well-worn theme of human freedom or unfreedom which has not been ahready better said by someone else before us? It may be doubted; yet it is always worth while to see whether we cannot at least set what is perhaps already familiar to us in a fresh light and so come to a clearer comprehension of our own meaning. This, at any rate, is all that will be attempted in these pages; I (...) have spoken in an earlier essay of the “practical situation” in which we find ourselves whenever we have to make a decision as involving indetermination , and my purpose is simply to make it plainer to myself, and so incidentally perhaps to a reader, what I mean by such an expression. I shall start, then, by adopting what we may perhaps agree to call a phenomenological attitude to the subject; that is, I will try to describe the facts in a way which anyone who recalls occasions when he has been driven to take a decision will recognize as faithful to his experience, without imparting into the description any element of explanatory speculative hypothesis. The description is meant to be one which will be admitted to be true to the “appearances,” independently of any theory about the “freedom of the will”—to describe correctly that which it is the object of all such theories to explain. (shrink)

Can there be such a thing as moral science, or a science of morality? And if so, what sense has the word science in such a connection? In the middle of the last century such a question would probably have seemed superfluous. Utilitarians, Comtists, and not a few “evolutionists” would all have claimed to be moralists, with this advantage over the metaphysical or theological moralists of an earlier day that their own moral doctrines were “scientific”.

The writer's object in the following pages has deliberately been not so much to supply information as to provoke the desire for it. If any of his readers should be led by anything he has said to seek further knowledge of Plato and his influence on thought and literature, in the works mentioned in the appended Bibliography or in other places, the end will have been attained.

I. The theological implications of morality.--II. Natural theology and the positive religions.

Let κ denote a regular uncountable cardinal and NS the normal ideal of nonstationary subsets of κ. Our results concern the well-known open question whether NS fails to be κ + -saturated, i.e., are there κ + stationary subsets of κ with pairwise intersections nonstationary? Our first observation is: Theorem. NS is κ + -saturated iff for every normal ideal J on κ there is a stationary set $A \subseteq \kappa$ such that $J = NS \mid A = \{X \subseteq (...) \kappa:X \cap A \in NS\}$ . Turning our attention to large cardinals, we extend the usual (weak) Mahlo hierarchy to define "greatly Mahlo" cardinals and obtain the following: Theorem. If κ is greatly Mahlo then NS is not κ + -saturated. Theorem. If κ is ordinal Π 1 1 -indescribable (e.g., weakly compact), ethereal (e.g., subtle), or carries a κ-saturated ideal, then κ is greatly Mahlo. Moreover, there is a stationary set of greatly Mahlo cardinals below any ordinal Π 1 1 -indescribable cardinal. These methods apply to other normal ideals as well; e.g., the subtle ideal on an ineffable cardinal κ is not κ + -saturated. (shrink)

In four studies, we examine the “LIFE IS A JOURNEY” conceptual metaphor using as data output from semantic and episodic memory. In the first three studies output from semantic memory indicates that undergraduate samples, when primed to think in “LIFE” in terms of a course followed until one's 70th year, provided a set of events output in a sequential order and when compared to a second sample, showed high agreement on the ages in which the events would occur. These data (...) were taken as supportive of a “JOURNEY” metaphor in which one progressed along a life path. Study 2 indicated that the “LIFE” events produced also aroused specific subthemes, consistent with the notion of the arousal of lower-level “LIFE-JOURNEY” metaphors (e.g., “LOVE IS A JOURNEY”). In a third study, we experimentally constrained the order of report from semantic memory. These data indicate that free output of events (as in Study 1) involves both a forward-temporal output, and clustering of life themes, but that forcing a forward-temporal order is indicative of the arousal of the superordinate conceptual metaphor but not the lower-level themes. Finally, in an episodic memory task one finds the reverse, namely arousal of the lower-level themes but not of the superordinate conceptual metaphor. Taken together, these findings indicate conditions under which the “LIFE IS A JOURNEY” metaphor is facilitated, and when lower-level metaphors are made more salient. In a more general way, the studies provide a new tool with which to study conceptual metaphors. (shrink)