The target articles by Hobson et al., by Solms, and by Nielsen can be combined to further our understanding of the neurological basis of dreaming during REM and, notably, NREM sleep. Revonsuo adds to our understanding of the function of dreams from the perspective of behavioral biology but overstates its importance. Vertes & Eastman fail in their effort to discount memory enhancement as a function of REM sleep. [Hobson et al.; Nielsen; Revonsuo; Solms; Vertes & Eastman].

Eldon Soifer and Béla Szabados argue that hypocrisy poses a problem for consequentialism because the hypocrite, in pretending to live up to a norm he or she does not really accept, acts in ways that have good results. They argue, however, that consequentialists can meet this challenge and show the wrongness of hypocrisy by adopting a desirefulfilment version of their theory. This essay raises some doubts about Soifer and Szabados's proposal and argues that consequentialism has no difficulty coming to grips (...) with hypocrisy, whether or not one favours a desire-fulfilment account of the good. (shrink)

In the past two decades, reinforcement learning has become a popular framework for understanding brain function. A key component of RL models, prediction error, has been associated with neural signals throughout the brain, including subcortical nuclei, primary sensory cortices, and prefrontal cortex. Depending on the location in which activity is observed, the functional interpretation of prediction error may change: Prediction errors may reflect a discrepancy in the anticipated and actual value of reward, a signal indicating the salience or novelty of (...) a stimulus, and many other interpretations. Anterior cingulate cortex has long been recognized as a region involved in processing behavioral error, and recent computational models of the region have expanded this interpretation to include a more general role for the region in predicting likely events, broadly construed, and signaling deviations between expected and observed events. Ongoing modeling work investigating the interaction between ACC and additional regions involved in cognitive control suggests an even broader role for cingulate in computing a hierarchically structured surprise signal critical for learning models of the environment. The result is a predictive coding model of the frontal lobes, suggesting that predictive coding may be a unifying computational principle across the neocortex. (shrink)

This book is a study of Plato’s most elementary dialogues, arranged in relation to Reading Order as opposed to order of composition. Beginning with the theatrical Protagoras and reaching a mountaintop in Symposium, the dialogues between them—Alcibiades, Lovers, Hippias, Ion, and Menexenus—introduce the student to both philosophy and Platonism.

Aimed at undergraduates, _Contemporary Ethics_ presupposes little or no familiarity with ethics and is written in a clear and engaging style. It provides students with a sympathetic but critical guide to utilitarianism, explaining its different forms and exploring the debates it has spawned. The book leads students through a number of current issues in contemporary ethics that are connected to controversies over and within utilitarianism. At the same time, it uses utilitarianism to introduce students to ethics as a subject. In (...) these ways, the book is not only a guide to utilitarianism, but also an introduction to some standard problems of ethics and to several important topics in contemporary ethical theory. (shrink)

responses to N Engl J Med 2007; 357:1273-1275 September 27, 2007.

With both the Roman Empire and contemporary scholarship as backdrop, this book contrasts the Imperial Platonism of Plotinus with Plato's own by distinguishing one as a master enlightening disciples, and the other as an Athenian teacher who taught students to discover the truth for themselves in the Academy.

In lieu of an abstract, here is a brief excerpt of the content:AQUINAS ON THE EVALUATION OF HUMAN ACTIONS WILLIAM H. MARSHNER Christendom College Front Royal, Virginia AMONG THE questions dealt with in the Prima Secundae are those of what moral goodness "is" and on what basis it is attributed to some human actions but denied of others. Aquinas's answers are currently a matter of contention between the proportionalists and their critics, as is his answer to the question of (...) how human actions are classified. The presentation in the Prima Secundae does give rise to problems, thanks in part to Aquinas's pedagogical procedure. That procedure can be described as bit-by-bit exposition. Rather than set forth his whole view of a topic in one place, in a synthesis of some sort, and applying it piecemeal thereafter as subsequent questions may demand, the Common Doctor keeps his whole view back, exposing no more of it than is needed to resolve the particular issue at stake in a given article. The result of this, quite often, is that qualifications crucial to a fair comprehension of what he holds are scattered over places far removed from each other. Because what he holds on the classification and evaluation of human actions consists of several parts, each complicated, and all connected, his solution is unsuited to bit-by-bit exposition. Genuine doubts as to what the parts are, and how they come together, can arise. The purpose of the present paper is to present a synthesis that lets the whole picture emerge; as it emerges, certain attempts to read Aquinas in a manner supportive of the proportionalist position will be shown to conflict with the design of the whole. In his preface to qq. 18-20 in the Prima Secundae, Aquinas 347 348 WILLIAM H. MARSHNER describes their subject matter as the goodness or badness (bonitas vel malitia) of human actions. These abstract nouns are derived from the corresponding adjectives, "good" and "bad," and the very first thing Aquinas tells us (in the first sentence of q. 18, a. 1) is that "good" and "bad" are to be asserted of human actions in the same way as they are asserted of other things.' So how is that? A BACKGROUND TOPIC: 'GOOD' AND 'BAD' IN GENERAL If one should take up any item at all-an apple, a shoe-and say that the item is good, would one be purporting only to describe it as it is, or would one be purporting also to evaluate it in light of how it ought to be? Differently posed, does a proposition of the form "x is good" represent a product of speculative reason alone, or does it include an element, at least, from practical reasoning? Recent analytical philosophy is quite clear that the latter option is correct. "Good" and "bad" are terms which express evaluation rather than some sort of disinterested, theoretical description. 2 Aquinas can be read, at least, as holding the same view. In a text in which he defined a completely general sense of "good" (more general, for example, than just "human good"), he said: ratio boni est quod aliquid sit appetibile.3 To make out what this dictum means, two remarks are in order. First, the ratio of a term "T" is the reason anything is called T. Aquinas identified it as the aspect of things which the mind grasps and signifies through "T."4 He meant the aspect which would be "what it takes" for a thing to merit or verify the term, in case the term is applied to it. Thus the ratio of "good" is what it takes for 1 Respondeo dicendum quod de bono et malo in actionibus oportet loqui sicut de bono et malo in rebus.... ' The analytical philosophers derive a portion of their clarity on this issue from the celebrated remarks of David Hume on the difference between "is" and "ought": A Treatise on Human Nature, III, i,l. 3 See ST I, q. 5, q. 1. corpus, and many other places. Aquinas often quoted Aristotle's definition of "good" as what all things seek or tend toward (appetunt); the Stagirite's text is in the Nicomachaean Ethics, book I, chapter 1. 4 Ratio enim significata per... (shrink)

Neuroscience, brain based learning and education -- Collaborative reports in neuroscience and education -- A local paradigmatic example, founded on an international research phenomenon -- The mereological fallacy -- First-person/third-person asymmetry -- Neuroscience and irreducible uncertainty -- Inner and outer : the epistemology of the mind -- Inner and outer : the challenges of crypto-cartesianism, materialism and reductionism -- Intrinsic and relational models of education -- Education, psychology and physics -- Bohr's philosophy of physics and its application to psychology and (...) education -- A new educational philosophy based on Bohr's interpretation of quantum physics -- Conclusions : wittgenstein-bohr model of education. (shrink)

In Philosophical Review, October 1974, Professor Jones argues that Aristotle's concept of matter is that of any individual item, such as a piece of bronze or a seed, with which a process of coming into existence begins, and which is prior (in a purely temporal sense) to the product which comes to exist. Aristotle does not try to prove the existence of some sort of "super-stuff" called "prime matter."I argue that Jones' account does not do full justice to Aristotle's analysis (...) of change, or to the traditional notion of prime matter based on it. I criticize Jones' arguments and draw attention to a passage in which Aristotle says that matter comes to be and ceases to be in one sense, while in another it does not. "Matter" in the first sense refers to the determinate individual, the first term of a change; in the second sense it is the "stuff" which remains after a substantial change, the "prime matter.". (shrink)

Joachim Schulte’s introduction provides a distinctive and masterful account of the full range of Wittgenstein’s thought. It is concise but not compressed, substantive but not overloaded with developmental or technical detail, informed by the latest scholarship but not pedantic. Beginners will find it accessible and seasoned students of Wittgenstein will appreciate it for the illuminating overview it provides.

The traditional view that all logical truths are metaphysically necessary has come under attack in recent years. The contrary claim is prominent in David Kaplan’s work on demonstratives, and Edward Zalta has argued that logical truths that are not necessary appear in modal languages supplemented only with some device for making reference to the actual world (and thus independently of whether demonstratives like ‘I’, ‘here’, and ‘now’ are present). If this latter claim can be sustained, it strikes close to the (...) heart of the traditional view. I begin this paper by discussing and refuting Zalta’s argument in the context of a language for propositional modal logic with an actuality connective (section 1). This involves showing that his argument in favor of real world validity his preferred explication of logical truth, is fallacious. Next (section 2) I argue for an alternative explication of logical truth called general validity. Since the rule of necessitation preserves general validity, the argument of section 2 provides a reason for affirming the traditional view. Finally (section 3) I show that the intuitive idea behind the discredited notion of real world validity finds legitimate expression in an object language connective for deep necessity. (shrink)

Interrogating received knowledge is constitutive to any critical project, and recently there has been a wave of scholarship which argues for locating the origin of racist-thinking prior to modern Europe—even prior to the Common Era—without any real consideration of the potential dangers accompanying such a seismic redefinition. By expanding “racism” to include potentially any pre-modern xenophobic or ethnicist atrocity, even well-meaning scholarship dilutes the peculiar injustice of modern Europe’s most successful epistemological weapon. As a result, we lose any criteria to (...) distinguish ubiquitous oppressive projects from specifically racist-projects of hegemony and domination. However laudable its intent, such scholarship falls prey to methodological, epistemological, and practical errors that hamstring the ameliorative impact of contemporary anti-racist work while ironically diminishing racism’s impact. For if every conflict is racist, then contemporary colorblindness is correct: if white supremacy isn’t particularly white, then racism is a distinction without a difference. (shrink)