Human articulated motion can be readily recognized robustly even from impoverished so-called point-light displays. Such sequence information is processed by separate visual processing channels recruiting different stages at low and intermediate levels of the cortical visual processing hierarchy. The different contributions that motion and form information make to form articulated, or biological, motion perception are still under investigation. Here we investigate experimentally whether and how specific spatio-temporal features, such as extrema in the motion energy or maximum limb expansion, indicated by (...) the lateral and longitudinal extension, constrain the formation of the representations of articulated body motion. In order to isolate the relevant stimulus properties we suggest a novel masking technique, which allows to selectively impair the ankle information of the body configuration while keeping the motion of the point-light locations intact. Our results provide evidence that maxima in feature channel representations, e.g., the lateral or longitudinal extension, define elemental features to specify key poses of biological motion patterns. These findings provide support for models which aim at automatically building visual representations for the cortical processing of articulated motion by identifying temporally localized events in a continuous input stream. (shrink)

Introduction: Advantageous effects of biological motion detection, a low-perceptual mechanism that allows the rapid recognition and understanding of spatiotemporal characteristics of movement via salient kinematics information, can be amplified when combined with motor imagery, i.e., the mental simulation of motor acts. According to Jeannerod’s neurostimulation theory, asynchronous firing and reduction of mu and beta rhythm oscillations, referred to as suppression over the sensorimotor area, are sensitive to both MI and action observation of BM. Yet, not many studies investigated the use (...) of BM stimuli using combined AO-MI tasks. In this study, we assessed the neural response in the form of event-related synchronization and desynchronization patterns following the observation of point-light-walkers and concordant MI, as compared to MI alone.Methods: Twenty right-handed healthy participants accomplished the experimental task by observing BM stimuli and subsequently performing the same movement using kinesthetic MI. We recorded an electroencephalogram with 32 channels and performed time-frequency analysis on alpha and beta frequency bands during the MI task. A two-way repeated-measures ANOVA was performed to test statistical significance among conditions and electrodes of interest.Results: The results revealed significant ERD/S patterns in the alpha frequency band between conditions and electrode positions. Post hoc comparisons showed significant differences between condition 1 and condition 3 over the left primary motor cortex. For the beta band, a significantly less difference in ERD patterns was detected only between condition 3 and condition 4.Discussion: Our results confirmed that the observation of BM combined with MI elicits a neural suppression, although just in the case of jumping. This is in line with previous findings of AO and MI eliciting a neural suppression for simulated whole-body movements. In the last years, increasing evidence started to support the integration of AOMI training as an adjuvant neurorehabilitation tool in Parkinson’s disease.Conclusion: We concluded that using BM stimuli in AOMI training could be promising, as it promotes attention to kinematic features and imitative motor learning. (shrink)

The effect of uniform lighting on face identity processing is little understood, despite its potential influence on our ability to recognize faces. Here, we investigated how changes in uniform lighting level affected face identification performance during face memory tests. Observers were tasked with learning a series of faces, followed by a memory test where observers judged whether the faces presented were studied before or novel. Face stimuli were presented under uniform bright or dim illuminations, and lighting across the face (...) learning and the memory test sessions could be the same or different. This led to four experimental conditions: Bright/Dim ; Bright/Bright; Dim/Bright; and Dim/Dim. Our results revealed that incongruent lighting levels across sessions significantly reduced sensitivity to faces and introduced conservative biases compared to congruent lighting levels. No significant differences in performance were detected between the congruent lighting conditions and between the incongruent lighting conditions. Thus, incongruent lighting deteriorated performance in face identification. These findings implied that the level of uniform lighting should be considered in an illumination-specific face representation and potential applications such as eyewitness testimony. (shrink)

Ned Block’s Overflow Argument purports to establish that the neural basis of phenomenal consciousness is independent of the neural basis of access consciousness. In a recent paper, Block’s argument has been challenged by Peter Carruthers. Carruthers concedes the truth of one of the argument’s key steps, namely, that phenomenal consciousness overflows what is in working memory. At the same time, he rejects the conclusion of the argument by developing an account of this overflow that is alternative to Block’s. In this (...) paper, I argue that Carruthers’s account does not pose a real threat to the Overflow Argument. The overall plausibility of Carruthers’s account rests on the empirical plausibility of a claim concerning global broadcasting which, albeit intuitively plausible in light of a lightly-sketched picture of the impact of attention upon neural matters, he offers no sufficient empirical evidence for. Drawing on some important imaging studies that reveal striking facts about neural responses to visual stimuli, I argue for two intimately related claims: first, that the intuitive plausibility of claims like Carruthers’s is not a guarantee of empirical plausibility; second, that as concerns the same claims, strong empirical evidence is needed before confident judgments of empirical plausibility can reasonably be formulated. (shrink)

We introduce a novel paradigm for studying the cognitive processes used by listeners within interactive settings. This paradigm places the talker and the listener in the same physical space, creating opportunities for investigations of attention and comprehension processes taking place during interactive discourse situations. An experiment was conducted to compare results from previous research using videotaped stimuli to those obtained within the live face-to-face task paradigm. A headworn apparatus is used to briefly display LEDs on the talker's face in (...) four locations as the talker communicates with the participant. In addition to the primary task of comprehending speeches, participants make a secondary task light detection response. In the present experiment, the talker gave non-emotionally-expressive speeches that were used in past research with videotaped stimuli. Signal detection analysis was employed to determine which areas of the face received the greatest focus of attention. Results replicate previous findings using videotaped methods. (shrink)

We introduce a novel paradigm for studying the cognitive processes used by listeners within interactive settings. This paradigm places the talker and the listener in the same physical space, creating opportunities for investigations of attention and comprehension processes taking place during interactive discourse situations. An experiment was conducted to compare results from previous research using videotaped stimuli to those obtained within the live face-to-face task paradigm. A headworn apparatus is used to briefly display LEDs on the talker’s face in (...) four locations as the talker communicates with the participant. In addition to the primary task of comprehending speeches, participants make a secondary task light detection response. In the present experiment, the talker gave non-emotionally-expressive speeches that were used in past research with videotaped stimuli. Signal detection analysis was employed to determine which areas of the face received the greatest focus of attention. Results replicate previous findings using videotaped methods. (shrink)

We introduce a novel paradigm for studying the cognitive processes used by listeners within interactive settings. This paradigm places the talker and the listener in the same physical space, creating opportunities for investigations of attention and comprehension processes taking place during interactive discourse situations. An experiment was conducted to compare results from previous research using videotaped stimuli to those obtained within the live face-to-face task paradigm. A headworn apparatus is used to briefly display LEDs on the talker’s face in (...) four locations as the talker communicates with the participant. In addition to the primary task of comprehending speeches, participants make a secondary task light detection response. In the present experiment, the talker gave non-emotionally-expressive speeches that were used in past research with videotaped stimuli. Signal detection analysis was employed to determine which areas of the face received the greatest focus of attention. Results replicate previous findings using videotaped methods. (shrink)

This study compared professional and amateur classical musicians matched for age, gender, and education on reaction times during the Stroop color-word test, brainwaves during an auditory ERP task and during paired reaction-time tasks, responses on the Gibbs Sociomoral Reflection questionnaire, and self-reported frequencies of peak experiences. Professional musicians were characterized by: lower color-word interference effects , faster categorization of rare expected stimuli , and a trend for faster processing of rare unexpected stimuli , higher scores on the Sociomoral (...) Reflection questionnaire, and more frequent peak experiences during rest, tasks, and sleep. Both groups had high values on the Brain Integration Scale. These findings are interpreted in light of a Unified Theory of Performance, which posits that effectiveness in any area is influenced by one’s level of mind-brain development—emotional, cognitive, moral, ego and cortical development—with higher mind-brain development supporting greater effectiveness in any domain. (shrink)

Most organisms display oscillations of approximately 24 hours in their physiology. In higher organisms, these circadian oscillations in biochemical and physiological processes ultimately control complex behavioral rhythms that allow an organism to thrive in its natural habitat. Daily and seasonal light cycles are mainly responsible for keeping the circadian system properly aligned with the environment. The molecular mechanisms responsible for the control of the circadian clock have been explored in a number of systems. Interestingly, the circadian oscillations that are responsive (...) to environmental stimuli are present very early during development. This review focuses on the advantages of using the zebrafish to study the development of the vertebrate circadian system and light‐dependent signaling to the clock. BioEssays 24:419–426, 2002. © 2002 Wiley Periodicals, Inc. (shrink)

Yoga, like the other five orthodox schools or darśanas of Hindu philosophy, is primarily soteriological in purpose; it offers the hope of salvation from the inevitable suffering of life and the cycle of death and rebirth more broadly. Unlike the other darśanas, its prescribed method for achieving this salvation is meditation, by which the practitioner focuses his or her attention so as to become undisturbed by the fluctuations of his or her own consciousness caused by stimuli in the external (...) world and by upheavals in his or her own emotional state. In light of this, the individual practices that comprise the path of meditation are often understood to liberate one from one’s own consciousness by turning one’s... (shrink)

La vision par ordinateur est un des domaines de l’intelligence artificielle qui connaît les succès les plus fulgurants. Depuis une vingtaine d’années, les machines n’ont cessé de progresser dans leur capacité à extraire des informations à partir d’images et à identifier des objets. Mais faut-il en conclure que ces machines sont littéralement des machines voyantes, ou ne s’agit-il que d’une façon imagée de décrire des capacités de détection? Le présent article se propose de fournir les bases d’une réponse raisonnée à (...) cette question. Nous examinons successivement trois types de conditions d’attribution de la vision, et soutenons que le critère fonctionnaliste, en termes de représentations internes de stimuli visuels exploitables à diverses fins, doit être préféré aux critères behavioriste ou phénoménologique. Ce critère fonctionnaliste est ensuite appliqué à une des technologies les plus utilisées dans le domaine de la vision par ordinateur, celle des réseaux de neurones et plus particulièrement des réseaux convolutifs. Nous soutenons alors que de tels réseaux sont bien capables de voir, précisément dans la mesure où ils sont entraînés pour produire des représentations à partir de données visuelles. Ces représentations ont des traits spécifiques associés à un entraînement réussi : elles sont hiérarchiques, versatiles et robustes. De telles propriétés ont un intérêt théorique au-delà de leur domaine d’origine : nous suggérons pour finir qu’elles pourraient être utilisées pour spécifier la nature de la fonction de représentation et résoudre certains des problèmes classiques auxquels font face les théories téléosémantiques de la représentation comme celle de Dretske. (shrink)

Institutional corruption is a normative concept of growing importance that embodies the systemic dependencies and informal practices that distort an institution’s societal mission. An extensive range of studies and lawsuits already documents strategies by which pharmaceutical companies hide, ignore, or misrepresent evidence about new drugs; distort the medical literature; and misrepresent products to prescribing physicians. We focus on the consequences for patients: millions of adverse reactions. After defining institutional corruption, we focus on evidence that it lies behind the epidemic of (...) harms and the paucity of benefits. (shrink)

Over the past 35 years, patients have suffered from a largely hidden epidemic of side effects from drugs that usually have few offsetting benefits. The pharmaceutical industry has corrupted the practice of medicine through its influence over what drugs are developed, how they are tested, and how medical knowledge is created. Since 1906, heavy commercial influence has compromised congressional legislation to protect the public from unsafe drugs. The authorization of user fees in 1992 has turned drug companies into the FDA's (...) prime clients, deepening the regulatory and cultural capture of the agency. Industry has demanded shorter average review times and, with less time to thoroughly review evidence, increased hospitalizations and deaths have resulted. Meeting the needs of the drug companies has taken priority over meeting the needs of patients. Unless this corruption of regulatory intent is reversed, the situation will continue to deteriorate. We offer practical suggestions including: separating the funding of clinical trials from their conduct, analysis, and publication; independent FDA leadership; full public funding for all FDA activities; measures to discourage R&D on drugs with few, if any, new clinical benefits; and the creation of a National Drug Safety Board. (shrink)

The aesthetics of everyday life, originally developed by Henri Lefebvre and other modernist theorists, is an extension of traditional aesthetics, usually confined to works of art. It is not limited to the study of humble objects but is rather concerned with all of the undeniably aesthetic experiences that arise when one contemplates objects or performs acts that are outside the traditional realm of aesthetics. It is concerned with the nature of the relationship between subject and object. One significant aspect of (...) everyday aesthetics is environmental aesthetics, whether constructed, as a building, or manipulated, as a landscape. Others, also discussed in the book, include sport, weather, smell and taste, and food. (shrink)

_ _ _Environmental Ethics: An Anthology_ brings together both classic and cutting-edge essays which have formed contemporary environmental ethics, ranging from the welfare of animals versus ecosystems to theories of the intrinsic value of nature.

There are many ways to describe cities. As a physical environment, more so than many other environments, they are at least an extension of our present intentions. But cities are not confined to the moment. Built spaces are also in conversation with the past and oriented toward the future as physical manifestations of our values and priorities. But even with all of the ways we have to describe cities we do not normally think of them as in any way akin (...) to the “natural” environment. City and country, nature and culture, are opposed. We move through cities differently, with a different set of values, whether articulated or not. Consider just one small example: Even the most jaded urban dweller may hesitate to sully the environment around him when he perceives it to be something other than a product of the human community. Though we have all seen trash in a national park, we suspect (or at least hope) that there is a kind of hesitancy that occurs with a person wondering what to do with her candy wrappers on a trail in Yosemite. On the other hand, a visitor to my home, Greenwich Village, will usually not think twice about tossing his cigarette butts on the ground as he walks toward his next destination. (shrink)

Discussion of ecological restoration in environmental ethics has tended to center on issues about the nature and character of the values that may or may not be produced by restored landscapes. In this paper we shift the philosophical discussion to another set of issues: the social and political context in which restorations are performed. We offer first an evaluation of the political issues in the practice of restoration in general and second an assessment of the political context into which restoration (...) is moving. The former focuses on the inherent participatory capacity at the heart of restoration; the latter is concerned with the commodified (primarily in the United States) and nationalized (primarily in Canada) uses to which restoration is being put. By comparing these two areas of inquiry we provide a foundation for a critical assessment of the politics of restoration based on the politics in restoration. (shrink)

Traditional justifications for state-to-state development assistance include charity, basic rights and self-interest. Except in unusual cases such as war-reparations agreements, development assistance has typically been justified for reasons such as the above, without reference to any history of injury that holds between the states. We argue that climate change entails relationships of harm that can be cited to supplement and strengthen the traditional claims for development assistance. Finally, to demonstrate the utility of this analysis, we offer a brief application of (...) our reasoning to the emerging conflict in the United Nations over the future post-2015 development agenda. (shrink)

Empathy is the combined ability to interpret the emotional states of others and experience resultant, related emotions. The relation between prefrontal electroencephalographic asymmetry and emotion in children is well known. The association between positive emotion (assessed via parent report), empathy (measured via observation), and second-by-second brain electrical activity (recorded during a pleasurable task) was investigated using a sample of one hundred twenty-eight 6- to 10-year-old children. Contentment related to increasing left frontopolar activation (p < .05). Empathic concern and positive empathy (...) related to increasing right frontopolar activation (ps < .05). A second form of positive empathy related to increasing left dorsolateral activation (p < .05). This suggests that positive affect and (negative and positive) empathy both relate to changes in prefrontal activity during a pleasurable task. (shrink)

The author recounts his experience with an uDCD program that ran for three years at the Washington Hospital I Center in Washington, D.C. in the 1990s. Challenges, I benefits, and lessons learned are considered in depth. A I primary focus is the importance of community education, Organ Procurement Organization support, and the need for immediate in-situ preservation of organs.

Essays showing how environmental philosophy can have an impact on the world by integrating abstract reasoning with actual environmental practice.

In the past thirty years environmental ethics has emerged as one of the most vibrant and exciting areas of applied philosophy. Several journals and hundreds of books testify to its growing importance inside and outside philosophical circles. But with all of this scholarly output, it is arguably the case that environmental ethics is not living up to its promise of providing a philosophical contribution to the resolution of environmental problems. This article surveys the current state of the field and offers (...) an alternative path for the future development of environmental ethics toward a more publicly engaged model of applied philosophy. (shrink)

As of January 1, 2008, over 98,000 people are waiting for organ transplants in the United States of America. Of those, nearly 75,000 are waiting for a kidney. In this calendar year, fewer than 15,000 will receive a kidney transplant from a deceased donor. The average waiting time for a deceased donor kidney now exceeds five years in virtually all metropolitan areas. Sadly, nearly as many people die waiting as there are deceased donors each year, despite monumental efforts by the (...) entire transplant community to increase both the number of organ donors and the number of organs recovered from each donor. The imbalance between demand and supply has led to considerable efforts to expand the criteria for what is considered an acceptable organ donor by the Organ Procurement and Transplant Network, thereby hoping somewhat to assuage the shortfall of donor organs. So-called Expanded Criteria Donors may be older than 50, have history of hypertension, or have died from intracerebral hemorrhage and/or have impaired renal function. ECDs now make up nearly 40% of the donor population. (shrink)

Selectional preferences have a long history in both generative and computational linguistics. However, since the publication of Resnik's dissertation in 1993, a new approach has surfaced in the computational linguistics community. This new line of research combines knowledge represented in a pre‐defined semantic class hierarchy with statistical tools including information theory, statistical modeling, and Bayesian inference. These tools are used to learn selectional preferences from examples in a corpus. Instead of simple sets of semantic classes, selectional preferences are viewed as (...) probability distributions over various entities. We survey research that extends Resnik's initial work, discuss the strengths and weaknesses of each approach, and show how they together form a cohesive line of research. (shrink)

For two and a half months in 1928, the Japanese philosopher Shûzô Kuki had weekly talks with a young French student of philosophy—Jean-Paul Sartre. In 1928, Kuki had just come to Paris after having studied with Heidegger and Husserl. Freshly ac­quainted with the new phenomenology, Kuki in­troduced Sartre to this emerging movement in philosophy. In a well-researched introductory essay, Stephen Light details the eight years Kuki spent in Europe in the 1920s, a period during which Kuki came to know Henri (...) Bergson, Heinrich Rickert, and Emile Brehier, as well as Husserl and Heidegger. Light includes translations of two of Kuki’s essays on time and often of his short essays on matters Japanese, culminating in the insightful “General Characteristics of French Philosophy.” None of the Kuki essays were previously available in English. The final section of the book is a facsimile of the never before published notebook Kuki used during his discussions with Sartre. (shrink)

The writings of William H. Whyte do not loom large in the literature of my field: environmental ethics, the branch of ethics devoted to consideration of whether and how there are moral reasons for protecting non-human animals and the larger natural environment. Environmental ethics is a very new field of inquiry, only found in academic philosophy departments since the early 1970s. While there is no accepted reading list of indispensable literature in environmental ethics, certainly any attempt to create such a (...) list would begin with Henry David Thoreau, John Muir, Aldo Leopold, Rachel Carson, and a more recent handful of senior scholars who had been writing on these topics early on, such as J. Baird Callicott, Val Plumwood, Peter Singer, Richard Sylvan, Tom Regan, and Holmes Rolston III (for a review of contemporary environmental ethics, see Light 2002, Palmer 2003, and Wenz 2001). (shrink)

This chapter explores the ethical dimensions of diplomatic efforts to form a global agreement on climate change. It offers a brief historical background on the core multilateral climate negotiation body, the United Nations Framework Convention on Climate Change, and highlights some contentious moral elements of these negotiations. In particular, it explores the complex ways in which the principle of “common but differentiated responsibilities” has driven debates on how burdens for mitigation, adaptation, and finance should be distributed between developed and developing (...) countries. It then considers the transformation in these climate negotiations since 2009, including the move toward a bottom-up architecture as part from the Copenhagen Accord to the Paris Agreement. Finally, it assesses the current state of climate diplomacy in relation to broader diplomatic priorities, arguing that climate diplomacy must be elevated alongside other top-tier foreign policy issues today in order to eventually achieve some level of climate stability. (shrink)

An extended visual exploration of Brooklyn and its inhabitants viewed from a bus window frame. The project was conceived as a symbolic photographic portrait of America in this specific time of history, a time of transition and transformation deeply affected by the global economic crisis and its consequences on society, politics and culture.

Robert Elliot's 1982 “Faking Nature,” represents one of the strongest philosophical rejections of the ground of restoration ecology ever offered.1 Here, and in a succession of papers defending the original essay, Elliot argued that ecological restoration, the practice of restoring damaged ecosystems, was akin to art forgery. Just as a copied art work could not reproduce the value of the original, restored nature could not reproduce the value of original nature, conceived as a form of nonanthropocentric and intrinsic, as opposed (...) to merely instrumental, value.2 Eric Katz's 1992 “The Big Lie: Human Restoration of Nature,” extended this claim by further arguing that whatever was produced in a restored landscape it certainly could not count as having the original value of nature, particularly wild nature, and necessarily represented a form of disvalue and domination of nature.3 Elliot has continued to press his argument forward since the original publication of “Faking Nature,” augmenting and some would say softening his critique of restoration, in a book also called Faking Nature.4 Perhaps because both Elliot and Katz rest their claims on the defense of a strong nature-culture distinction, the two arguments are often lumped together as the Elliot-Katz rejection of the value of ecological restoration. Nonetheless, Elliot has made it clear in his recent book that his view is distinct from and even at odds with Katz’s views. In previous papers I have criticized Elliot and Katz’s work as an unhelpful philosophical contribution to the literature on restoration ecology. To my mind, restorationists are ultimately up to more good than harm, and whatever the.. (shrink)