We present evidence disputing the hypothesis that memories are processed or consolidated in REM sleep. A review of REM deprivation (REMD) studies in animals shows these reports to be about equally divided in showing that REMD does, or does not, disrupt learning/memory. The studies supporting a relationship between REM sleep and memory have been strongly criticized for the confounding effects of very stressful REM deprivation techniques. The three major classes of antidepressant drugs, monoamine oxidase inhibitors (MAOIs), tricyclic antidepressants (TCAs), and (...) selective serotonin reuptake inhibitors (SSRIs), profoundly suppress REM sleep. The MAOIs virtually abolish REM sleep, and the TCAs and SSRIs have been shown to produce immediate (40–85%) and sustained (30–50%) reductions in REM sleep. Despite marked suppression of REM sleep, these classes of antidepressants on the whole do not disrupt learning/memory. There have been a few reports of patients who have survived bilateral lesions of the pons with few lingering complications. Although these lesions essentially abolished REM sleep, the patients reportedly led normal lives. Recent functional imaging studies in humans have revealed patterns of brain activity in REM sleep that are consistent with dream processes but not with memory consolidation. We propose that the primary function of REM sleep is to provide periodic endogenous stimulation to the brain which serves to maintain requisite levels of central nervous system (CNS) activity throughout sleep. REM is the mechanism used by the brain to promote recovery from sleep. We believe that the cumulative evidence indicates that REM sleep serves no role in the processing or consolidation of memory. Key Words: antidepressant drugs; brain stem lesions; dreams; functional imaging; memory consolidation; REM deprivation; REM sleep; theta rhythm. (shrink)

We believe that this has been a constructive debate on the topic of memory consolidation and REM sleep. It was a lively and spirited exchange – the essence of science. A number of issues were discussed including: the pedestal technique, stress, and early REMD work in animals; REM windows; the processing of declarative versus procedural memory in REM in humans; a mnemonic function for theta rhythm in waking but not in REM sleep; the lack of cognitive deficits in patients on (...) antidepressant drugs that suppress or eliminate REM sleep; the disposition of conscious (dreams) and nonconscious material of REM sleep; and finally our theory of REM sleep. Although our position was strongly challenged, we still hold that REM sleep serves no role in the processing and consolidation of memory. (shrink)

Although considerable attention has been paid to the possible involvement of sleep in memory processing, there is no substantial evidence for it. Walker describes a phenomenon of consolidation-based enhancement (CBE), whereby performance on select procedural tasks improves with overnight sleep; that is, without additional practice on the tasks. CBE, however, appears restricted to a few tasks, and even with these tasks CBE is not confined to sleep but also occurs during wakefulness. Sleep serves no unique role in this process. At (...) best, CBE is a slow, time-dependent process of consolidation that begins with task acquisition in waking and can under some circumstances extend to sleep. (shrink)

Profoundly important ethical and political controversies turn on the question of whether biological life is an essential aspect of a human person, or only an extrinsic instrument. Lee and George argue that human beings are physical, animal organisms - albeit essentially rational and free - and examine the implications of this understanding of human beings for some of the most controversial issues in contemporary ethics and politics. The authors argue that human beings are animal organisms and that their personal identity (...) across time consists in the persistence of the animal organisms they are; they also argue that human beings are essentially rational and free and that there is a radical difference between human beings and other animals; criticize hedonism and hedonistic drug-taking; present detailed defenses of the prolife positions on abortion and euthanasia; and defend the traditional moral position on marriage and sexual acts. (shrink)

J. L. Schellenberg claims that the weakness of evidence for God’s existence is not merely a sign that God is hidden, “it is a revelation that God does not exist.” In Divine Hiddenness: New Essays, Michael J. Murray provides a “soul-making” defense of God’s hiddenness, arguing that if God were not hidden, then some of us would lose what many theists deem a (very) good thing: the ability to develop morally significant characters. In this paper, I argue that Murray’s soul-making (...) defense not only fails to defend God’s hiddenness, it produces (ironically) an argument for the nonexistence of God. (shrink)

This book defends the conjugal view of marriage. Patrick Lee and Robert P. George argue that marriage is a distinctive type of community: the union of a man and a woman who have committed to sharing their lives on every level of their beings (bodily, emotionally, and spiritually) in the kind of union that would be fulfilled by conceiving and rearing children together. The comprehensive nature of this union, and its intrinsic orientation to procreation as its natural fulfillment, distinguishes (...) marriage from other types of community and provides the basis for the norms of marital exclusivity and permanence. Lee and George detail how the basic moral norms regarding sexual acts follow from the ethical requirement to respect the good of marriage and explain how the law should treat marriage, given its conjugal nature, examining both the same-sex-marriage issue and civil divorce. (shrink)

Contemporary liberal thinkers commonly suppose that there is something in principle unjust about the legal prohibition of putatively victimless crimes. Here Robert P. George defends the traditional justification of morals legislation against criticisms advanced by leading liberal theorists. He argues that such legislation can play a legitimate role in maintaining a moral environment conducive to virtue and inhospitable to at least some forms of vice. Among the liberal critics of morals legislation whose views George considers are Ronald Dworkin, Jeremy (...) Waldron, David A.J. Richards, and Joseph Raz. He also considers the influential modern justification for morals legislation offered by Patrick Devlin as an alternative to the traditional approach. George closes with a sketch of a "pluralistic perfectionist" theory of civil liberties and public morality, showing that it is fully compatible with a defense of morals legislation. Making Men Moral will interest legal scholars and political theorists as well as theologians and philosophers focusing on questions of social justice and political morality. (shrink)

This monograph is designed to provide an introduction to the principal areas of tense logic. Many of the developments in this ever-growing field have been intentionally excluded to fulfill this aim. Length also dictated a choice between the alternative notations of A. N. Prior and Nicholas Rescher - two pioneers of the subject. I choose Prior's because of the syntactical parallels with the language it symbolizes and its close ties with other branches of logi cal theory, especially modal logic. The (...) first chapter presents a wider view of the material than later chapters. Several lines of development are consequently not followed through the remainder of the book, most notably metric systems. Although it is import ant to recognize that the unadorned Prior-symbolism can be enriched in vari ous ways it is an advanced subject as to how to actually carry off these enrichments. Readers desiring more information are referred to the appropri ate literature. Specialists will notice that only the first of several quantifi cational versions of tense logic is proven complete in the final chapter. Again constraints of space are partly to blame. The proof for the 'star' systems is wildly complex and at the time of this writing is not yet ready for publi cation. (shrink)

In this book it is argued that this picture of Feyerabend is false.

"Crease’s brilliantly exploited theatrical analogy places scientific theorizing back into the wider context of experimental inquiry." —Robert C. Scharff Crease attacks the "mystical" account of experimentation embraced by the positivist and Kantian varieties of philosophy of science, according to which experimentation takes a backseat to theory.

Selected by CHOICE as an Outstanding Academic Book for 1995.

John Finnis is a pre-eminent legal, moral and political philosopher. This volume contains over 25 essays by leading international scholars of philosophy and law who critically engage with issues at the heart of Finnis's work.

J. L. Schellenberg claims that the weakness of evidence for God’s existence is not merely a sign that God is hidden, “it is a revelation that God does not exist.” In Divine Hiddenness : New Essays, Michael J. Murray provides a “soul-making” defense of God’s hiddenness, arguing that if God were not hidden, then some of us would lose what many theists deem a good thing: the ability to develop morally significant characters. In this paper, I argue that Murray’s soul-making (...) defense not only fails to defend God’s hiddenness, it produces an argument for the nonexistence of God. (shrink)

"Public reason" is one of the central concepts in modern liberal political theory. As articulated by John Rawls, it presents a way to overcome the difficulties created by intractable differences among citizens' religious and moral beliefs by strictly confining the place of such convictions in the public sphere. Identifying this conception as a key point of conflict, this book presents a debate among contemporary natural law and liberal political theorists on the definition and validity of the idea of public reason. (...) Its distinguished contributors examine the consequences of interpreting public reason more broadly as "right reason," according to natural law theory, versus understanding it in the narrower sense in which Rawls intended. They test public reason by examining its implications for current issues, confronting the questions of abortion and slavery and matters relating to citizenship. This energetic exchange advances our understanding of both Rawls's contribution to political philosophy and the lasting relevance of natural law. It provides new insights into crucial issues facing society today as it points to new ways of thinking about political theory and practice. (shrink)

: The purpose of this paper and its sister paper (Farrell and Hooker, b) is to present, evaluate and elaborate a proposed new model for the process of scientific development: self-directed anticipative learning (SDAL). The vehicle for its evaluation is a new analysis of a well-known historical episode: the development of ape-language research. In this first paper we outline five prominent features of SDAL that will need to be realized in applying SDAL to science: 1) interactive exploration of possibility space; (...) 2) self-directedness; 3) localization of success and error; 4) Synergistic increase in learning capacity; and 5) continuity of SDAL process across scientific change. In this paper we examine the first three features of SDAL in relation to the early history of ape-language research. We show that this history is readily explicated as a self-directed, ever-finer, delineation of possibility space that enables the localization of both success and error. Paper II examines the last two features against this history. (shrink)

Our understanding of the sense of taste is largely based on research designed and interpreted in terms of the traditional four tastes: sweet, sour, salty, and bitter, and now a few more. This concept of basic tastes has no rational definition to test, and thus it has not been tested. As a demonstration, a preliminary attempt to test one common but arbitrary psychophysical definition of basic tastes is included in this article; that the basic tastes are unique in being able (...) to account for other tastes. This definition was falsified in that other stimuli do about as well as the basic words and stimuli. To the extent that this finding might show analogies with other studies of receptor, neural, and psychophysical phenomena, the validity of the century-long literature of the science of taste based on a few is called into question. The possible origins, meaning, and influence of this concept are discussed. Tests of the model with control studies are suggested in all areas of taste related to basic tastes. As a stronger alternative to the basic tradition, the advantages of the across-fiber pattern model are discussed; it is based on a rational data-based hypothesis, and has survived attempts at falsification. Such has found broad acceptance in many neural systems. (shrink)

Research on social influences often distinguishes between social and quality incentives to ascribe meaning to the value that popularity conveys. This study examines the neural correlates of those incentives through which popularity influences preferences. This research reports an functional magnetic resonance imaging experiment and a behavioral task in which respondents evaluated popular products with three focus perspectives; unspecified focus, focus on social aspects, and focus on quality. The results show that value derived with a social focus reflects inferences of approval (...) and reward value, and positively affects preferences. Value derived with a quality focus reflects inferences of quality and negatively affects preferences. This study provides evidence of two distinct inferential routes on both a neurological level, represented by different regions in the brain, and a behavioral level. These results provide the first evidence that a single popularity cue can in different ways influence the value derived from product popularity. (shrink)

Seven features which in practice seem to differentiate belief systems from knowledge systems are discussed. These are: nonconsensuality, “existence beliefs,” alternative worlds, evaluative components, episodic material, unboundedness, and variable credences. Each of these features gives rise to challenging representation problems. Progress on any of these problems within artificial intelligence would be helpful in the study of knowledge systems as well as belief systems, inasmuch as the distinction between the two types of systems is not absolute.

The traditional approach to the abortion debate revolves around numerous issues, such as whether the fetus is a person, whether the fetus has rights, and more. Don Marquis suggests that this traditional approach leads to a standoff and that the abortion debate “requires a different strategy.” Hence his “future of value” strategy, which is summarized as follows: (1) A normal fetus has a future of value. (2) Depriving a normal fetus of a future of value imposes a misfortune on it. (...) (3) Imposing a misfortune on a normal fetus is prima facie wrong. (4) Therefore, depriving a normal fetus of a future of value is prima facie wrong. (5) Killing a normal fetus deprives it of a future of value. (6) Therefore, killing a normal fetus is prima facie wrong. In this paper, I argue that Marquis’s strategy is not different since it involves the concept of person—a concept deeply rooted in the traditional approach. Specifically, I argue that futures are valuable insofar as they are not only dominated by goods of consciousness, but are experienced by psychologically continuous persons. Moreover, I argue that his strategy is not sound since premise (1) is false. Specifically, I argue that a normal fetus, at least during the first trimester, is not a person. Thus, during that stage of development it is not capable of experiencing its future as a psychologically continuous person and, hence, it does not have a future of value. (shrink)

I am, of course, aware that infanticide was accepted and practiced in ancient Greece and Rome, and is still practiced in places like India and China today; just as I am aware that slavery was accepted and practiced in ancient Greece and Rome , and is still practiced in some places today. But if philosophers, no matter how sophisticated, were to step forward today to argue that slavery is morally acceptable , I would call that madness.Of course, the ‘madness’ I (...) am referring to in condemning the advocacy of infanticide and slavery or their moral permissibility is moral madness. I am not making a clinical diagnosis of a psychiatric condition. I take it that this was obvious, but that Charles Camosy is nevertheless troubled that I would say such a thing. But I do say it. And at the risk of giving offense, I will say it again: advocating the moral permissibility of killing healthy newborn infants is moral madness; and it is scandalous, especially in a journal expressly directed not merely to philosophers but to physicians, nurses and other healthcare professionals—people whose attitudes shape decisions they make about the lives of real people, including real infants.Whatever errors of fact and judgment are made possible by the complexities of human development or a prenatal …. (shrink)

John Preston has claimed that we must understand Paul Feyerabend's later, post-1970, philosophy in terms of a disappointed Popperianism: that Feyerabend became a sceptical, relativistic, literal anarchist because of his perception of the failure of Popper's philosophy. I argue that this claim cannot be supported and trace the development of Feyerabend's philosophy in terms of a commitment to the central Popperian themes of criticism and critical explanatory progress. This commitment led Feyerabend to reject Popper's specific methodology in favour of a (...) pluralistic methodology, but the commitment to the central values of criticism and critical explanatory progress remained . Moreover, methodological pluralism does not imply scepticism, relativism, or literal anarchism. Feyerabend was not a disappointed Popperian, but, in many respects, a die-hard pluralistic Popperian. (shrink)

Joseph Newhard (2017) argues that a libertarian anarchist society would be at a serious military disadvantage if it extended the nonaggression principle to include potential foreign invaders. He goes so far as to recommend cultivating the ability to launch a nuclear attack on foreign cities. In contrast, I argue that the free society would derive its strength from a total commitment to property rights and the protection of innocent life. Both theory and history suggest that a free society would be (...) capable of defending itself, and indeed that it would probably use other means to avoid military conflict altogether. (shrink)

: The purpose of this paper and its sister paper I (Farrell and Hooker, a) is to present, evaluate and elaborate a proposed new model for the process of scientific development: self-directed anticipative learning. The vehicle for its evaluation is a new analysis of a well-known historical episode: the development of ape language research. Paper I examined the basic features of SDAL in relation to the early history of ape-language research. In this second paper we examine the reconceptualization of ape-language (...) research following what many conceived to be Terrace's refutation of ape-language. We show that the apparent 'revolution' in our understanding of ape linguistic capacities was not based upon 'revolutionary' research different in kind from 'normal' research. The same processes of self-directed interactive exploration of possibility space, that enables a homing-in upon both error and success, is present in all phases of productive science. Moreover, conceiving science as an SDAL process explains how scientists learn how to learn about their research domain. (shrink)

QBism is an interpretation of quantum mechanics that posits quantum probabilities as subjective Bayesian probabilities, whence its name. By avoiding experientially unfulfilled speculations about what exists prior to measurement, QBism seems to make a close encounter with the phenomenological method. What follows is an interview with QBism’s founder and principal champion, the physicist Christopher Fuchs.

This article is a case study that describes the natural and human history of the gaze heuristic. The gaze heuristic is an interception heuristic that utilizes a single input repeatedly as a task is performed. Its architecture, advantages, and limitations are described in detail. A history of the gaze heuristic is then presented. In natural history, the gaze heuristic is the only known technique used by predators to intercept prey. In human history the gaze heuristic was discovered accidentally by Royal (...) Air Force fighter command just prior to World War II. As it was never discovered by the Luftwaffe, the technique conferred a decisive advantage upon the RAF throughout the war. After the end of the war in America, German technology was combined with the British heuristic to create the Sidewinder AIM9 missile, the most successful autonomous weapon ever built. There are no plans to withdraw it or replace its guiding gaze heuristic. The case study demonstrates that the gaze heuristic is a specific heuristic type that takes a single best input at the best time. Its use is an adaptively rational response to specific, rapidly evolving decision environments that has allowed those animals/humans/machines who use it to survive, prosper, and multiply relative to those who do not. (shrink)

Natural law theory is enjoying a revival of interest in a variety of scholarly disciplines including law, philosophy, political science, and theology and religious studies. This volume presents twelve original essays by leading natural law theorists and their critics. The contributors discuss natural law theories of morality, law and legal reasoning, politics, and the rule of law. Readers get a clear sense of the wide diversity of viewpoints represented among contemporary theorists, and an opportunity to evaluate the arguments and counterarguments (...) exchanged in the current debates between natural law theorists and their critics. Contributors include Hadley Arkes, Joseph M. Boyle, Jr., John Finnis, Robert P. George, Russell Hittinger, Neil MacCormick, Michael Moore, Jeffrey Stout, Joseph Raz, Jeremy Waldron, Lloyd Weinreb, and Ernest Weinrib. (shrink)

There is no question, of course, that music is a temporal art. Stravinsky, noting that it is inconceivable apart from the elements of sound and time, classifies it quite simply as "a certain organization in time, a chrononomy."1 His definition stands as part of a long and honored tradition that encompasses such diverse figures as Racine, Lessing, and Schopenhauer. Schopenhauer, putting the case in its strongest terms, remarks that music is "perceived solely in and through time, to the complete exclusion (...) of space," thus making explicit the opposition between time and space and ruling out the latter as a possible area for legitimate musical experience. Yet anyone familiar with the philosophical and theoretical literature dealing with music must be struck by the persistence with which spatial terminology and categories appear. Indeed, it would seem to be impossible to talk about music at all without invoking spatial notions of one kind or another. Thus in discussing even the most elementary aspects of pitch organization—and among the musical elements, only pitch, we should remember, is uniquely musical—one finds it necessary to rely upon such spatially oriented oppositions as "up and down," "high and low," "small and large" , and so on. Space, then, pace Schopenhauer, apparently forms an inseparable part of the musical experience. · 1. Igor Stravinsky, Poetics of Music in the Form of Six Lessons, trans, Arthur Knodel and Ingolf Dahl , p. 28. Robert P. Morgan is active as both a music composer and theorist. A professor of music at the University of Chicago, he is currently composing a concerto for flute, oboe, and string orchestra to be performed at Swarthmore College. His previous contribution to Critical Inquiry, "On the Analysis of Recent Music," appeared in the Autumn 1977 issue. Anthony Gilbert responds to the current essay in "Musical Space: A Composer's View". (shrink)