William James described the stream of thought as having two components: (1) a nucleus of highly conscious, often perceptual material; and (2) a fringe of dimly felt contextual information that controls the entry of information into the nucleus and guides the progression of internally directed thought. Here I examine the neural and cognitive correlates of this phenomenology. A survey of the cognitive neuroscience literature suggests that the nucleus corresponds to a dynamic global buffer formed by interactions between different regions of (...) the brain, while the fringe corresponds to a set of mechanisms in the frontal and medial temporal lobes that control the contents of this global buffer. A consequence of this account is that there might be conscious imagistic representations that are not part of the nucleus. I argue that phenomenology can be linked to psychology and neuroscience and a meaningful way that illuminates both. (shrink)

Although death by neurologic criteria is legally recognized throughout the United States, state laws and clinical practice vary concerning three key issues: the medical standards used to determine death by neurologic criteria, management of family objections before determination of death by neurologic criteria, and management of religious objections to declaration of death by neurologic criteria. The American Academy of Neurology and other medical stakeholder organizations involved in the determination of death by neurologic criteria have undertaken concerted action to address variation (...) in clinical practice in order to ensure the integrity of brain death determination. To complement this effort, state policymakers must revise legislation on the use of neurologic criteria to declare death. We review the legal history and current laws regarding neurologic criteria to declare death and offer proposed revisions to the Uniform Determination of Death Act and the rationale for these recommendations. (shrink)

In his novel Remembrance of Things Past, Marcel Proust argues that conventional descriptions of the phenomenology of consciousness are incomplete because they focus too much on the highly-salient sensory information that dominates each moment of awareness and ignore the network of associations that lies in the background. In this paper, I explicate Proust’s theory of conscious experience and show how it leads him directly to a theory of aesthetic perception. Proust’s division of awareness into two components roughly corresponds to William (...) James’ division of the stream of thought into a “nucleus” and “fringe.” Proust argues that the function of art is to evoke the underlying associative network indirectly in the mind of the observer by using carefully chosen sensory surfaces to control the stream of thought. I propose a possible neural basis for this Proustian/Jamesian phenomenology, and argue that the general principles of Proustian aesthetics can be applied to all forms of art. I conclude that a scientific theory of art should follow in a straightforward manner from a scientific theory of consciousness. (shrink)

In his commentary, David Galin raises several important issues that deserve to be addressed. In this response, I do three things. First, I briefly discuss the relation between the present work and the metaphoric theories of thought developed by cognitive lin- guists such as Lakoff and Johnson (1998). Second, I address some of the confusions that seem to have arisen about my use of the terms ''substantive thought'' and ''nucleus.'' Third, I briefly discuss some of the directions that Galin suggests (...) for further research. (shrink)

What are the conditions for fixing the reference of a proper name? Debate on this point has recently been rekindled by Scott Soames, Robin Jeshion, and others. In this paper, I sketch a new pragmatic approach to the justification of reference-fixing procedures, in opposition to accounts that insist on an invariant set of conditions for fixing reference across environments and linguistic communities. Comparing reference to other relations whose instances are introduced through "initiation" procedures, I outline a picture in which the (...) procedures that are successful for fixing the reference of proper names depend in part on regularities in the actual environment. (shrink)

With the release of Laudato Si (2015) Pope Francis has introduced new conceptual language into Catholic social teaching (CST), what he has called "integral ecology." His intent appears to be grounded in the realization that "It is essential to seek comprehensive solutions which consider the interactions with natural systems themselves and with social systems" (LS, no. CXXXVIII). Pope Francis goes on to make the case that ''We are faced not with two separate crises, one environmental and the other social, but (...) rather with one complex crisis with isboth social and environmental" (LS, no. CXXXVIII). Consequently, in order to solve this crisis we need to utilize "an integrated approach to combating poverty, restoring dignity to the excluded, and at the same time pro­ tecting nature" (LS, no. CXXXVlll). This perspective represents a major development in CST whereby the encyclical connects the dots between ecology/environment, economics and society, three essential aspects of what many in the environmental community and elsewhere see as in­ dispensable for humanity to achieve a sustainable relationship with the Earth. While this is extremely important for articulating a Catholic vision of sustainability, that is not the direction we take in this article. Rather our intent is to use the concept of integral ecology to do three things:(1) examine a current case in the U.S. that has received signif­ icant media attention as well as notoriety-the water crisis in Flint, Michigan; (2) describe how our recent understanding of the epigenetic impacts of environmental toxins casts a new and ominous light on this crisis and on other instances of environmental toxin exposure, and (3) propose some ideas on how epigenetic research might enlarge our in­ terpretation of basic aspects of CST highlighted in Laudato Si such as human dignity, justice and the common good. (shrink)

The concept of “representation” is used broadly and uncontroversially throughout neuroscience, in contrast to its highly controversial status within the philosophy of mind and cognitive science. In this paper I first discuss the way that the term is used within neuroscience, in particular describing the strategies by which representations are characterized empirically. I then relate the concept of representation within neuroscience to one that has developed within the field of machine learning. I argue that the recent success of artificial neural (...) networks on certain tasks such as visual object recognition reflects the degree to which those systems exhibit inherent inductive biases that reflect the structure of the physical world. I further argue that any system that is going to behave intelligently in the world must contain representations that reflect the structure of the world; otherwise, the system must perform unconstrained function approximation which is destined to fail due to the curse of dimensionality, in which the number of possible states of the world grows exponentially with the number of dimensions in the space of possible inputs. An analysis of these concepts in light of philosophical debates regarding the ontological status of representations suggests that the representations identified within both biological and artificial neural networks qualify as legitimate representations in the philosophical sense. (shrink)

"Well-publicized research in psychology tells us that over half of our attempts to change habitual behavior fail within one year. Even without reading the research, most of us will intuitively sense the truth in this, as we have all tried and failed to rid ourselves of one bad habit or another. The human story of habits and the difficulty of change has been told in many books - most of which will make only a quick reference to dopamine or the (...) "lizard brain" before moving on to practical tips and tricks for behavior change. In contrast, Stuck: The Neuroscience of Why Changing Our Behavior is So Hard will tell the brain's story about why behavior is so hard to change. Russell Poldrack offers an in-depth, yet entirely accessible, guide to the neuroscientific research on habits and habit change. Part I introduces the "anatomy of a habit," starting with the argument that the resilience of our habits stems largely from a mismatch between the environment in which our brains evolved and the one in which we now live, and continuing on to introduce current work on fear and anxiety, motivation, and cognitive control that bears on habit formation. Part II focuses on what neuroscience can tell us about breaking habits, introducing evidence-based strategies that give us the best possible chance to break cycles of bad behavior. Throughout the book, Poldrack offers a clear-eyed view of what neuroscience can tell us about habit change, and what it cannot - and importantly, how we know what we know"--. (shrink)

Cognitive neuroscience aims to map mental processes onto brain function, which begs the question of what “mental processes” exist and how they relate to the tasks that are used to manipulate and measure them. This topic has been addressed informally in prior work, but we propose that cumulative progress in cognitive neuroscience requires a more systematic approach to representing the mental entities that are being mapped to brain function and the tasks used to manipulate and measure mental processes. We describe (...) a new open collaborative project that aims to provide a knowledge base for cognitive neuroscience, called the Cognitive Atlas, and outline how this project has the potential to drive novel discoveries about both mind and brain. (shrink)

In a popular book and a widely anthologized article, Richard Taylor argues for a materialistic account of human nature based on considerations of common sense. While I do not argue against materialism, per se, I offer an extended critique of Taylor’s position that common sense unambiguously supports his version of materialism. I also argue that his account of the nature of psychological processes is of dubious philosophical value.

In a popular book and a widely anthologized article, Richard Taylor argues for a materialistic account of human nature based on considerations of common sense. While I do not argue against materialism, per se, I offer an extended critique of Taylor’s position that common sense unambiguously supports his version of materialism. I also argue that his account of the nature of psychological processes is of dubious philosophical value.

This lavishly illustrated book highlights the conservation importance of congregatory animals species--those which gather in vast groups. It also focuses on the irreplaceability of the congregation sites which are able to support such large gatherings of animals, fish, or birds.

Berkeley’s passionate devotion to common sense and, hence, opposition to that most odious of doctrines, skepticism regarding the immediate data of experience, requires his acceptance of certain fundamental and common-sensical beliefs in both epistemology and metaphysics which, I shall argue, are together inconsistent. Epistemologically, he is often required to identify and reduce the physical world to the perceptual world. Metaphysically, he must often identify the perceptual world with what we ordinarily think of as the physical world—the everyday world of common (...) sense; this time the reduction works the other way. Since Berkeley is uniformly committed to common sense, both commitments are present in all of Berkeley’s writings, though both are not usually simultaneously dominant. For Berkeleian scholars convinced Berkeley is consistent, the results are predictable. Those who emphasize certain epistemological arguments tend to treat Berkeley as a relativist. Those who emphasize certain metaphysical arguments treat him as a believer in a public world that has a career of its own. Since any attempt consistently to articulate a common-sense view of things is going to run into difficulties, so also is Berkeley’s; his particular attempt runs into serious inconsistencies. (shrink)

Some 100 color photos by a professional Texas photographer and science teacher showcase these gregarious rodents in their natural habitat. Graves discusses their varieties, habits, biology, range, and role in the ecosystem. Includes information on habitat decline by state since 1870, and where they can still be seen.

ExcerptThe modern understanding of the public sphere is inseparable from criticism: the public is the space in which criticism can be articulated most effectively. The critical public emerged historically as a platform for individuals to call into question the decisions of state authority, especially when those decisions were taken outside the public view, as was typical for the premodern state—although the penchant for secrecy in government certainly lives on today. The public sphere stretches across multiple fields: individual discussion, journalistic reportage (...) and evaluation, and deliberative parliamentary institutions, no matter how much current legislatures fail on that score. In a broad…. (shrink)

The “nation” has been the primary unit of political membership in modernity, typically stronger than “region” (the American 1865) and almost always stronger than “class” (the European 1914). Membership in the nation has meant citizenship, the basis of civil rights and civic responsibility within the rule of law. However “nation” is also related to the “people,” the source of all democratic power. The “people” was the population in the age of the democratic revolutions before anything like contemporary mass immigration. While (...) the Enlightenment notion of “the people” was not an ethnic definition, the romanticization of the term and its metamorphosis.. (shrink)

Are the arguments of the Frankfurt School still relevant? Modern Culture and Critical Theory investigates this question in the context of important issues in contemporary cultural politics: neoconservatism and new social movements, discontents with modernity and debates on postmodernism, the political hegemony of Ronald Reagan, and the cultural hegemony of structuralism and poststructuralism. Russell Berman thoughtfully explores the theories of Horkheimer, Adorno, Benjamin, Lyotard, and Foucault and their relevance to both historical and contemporary issues in literature, politics, and the (...) arts. (shrink)

Close to the beginning of Death in Venice, Thomas Mann sets up a relationship between aesthetic production and social context that bears strongly on the parameters of twentieth-century cultural life. After introducing his central figure, the fictive writer Aschenbach, Mann goes on to offer some exposition which, as always with Mann, is much more than exposition, since it draws attention to one of the central philosophical questions of the text: “It was a spring afternoon in that year of grace 19--, (...) when Europe sat upon the anxious seat beneath a menace that hung over its head for months. Aschenbach had sought the open soon after tea. (shrink)