This chapter contains sections titled: Looking Back – The Retrospectives Looking Back – The Attack Looking Back – Dialectical Tension Looking Ahead.

We owe the problem of the speckled hen to Gilbert Ryle. It was suggested to A.J. Ayer by Ryle in connection with Ayer’s account of seeing. Suppose that you are standing before a speckled hen with your eyes trained on it. You are in good light and nothing is obstructing your view. You see the hen in a single glance. The hen has 47 speckles on its facing side, let us say, and the hen ap­ pears speckled to you. On (...) Ayer’s view, in seeing the hen, you directly see a speckled sense-datum or appearance. Ryle wondered how many speckles there are on the sense-datum. After all, intu­ itively, the hen does not appear to you to have 47 speckles. And if this is the case, then it does not present to you an appearance with 47 speckles. Equally, however, the hen does not appear to you not to have 47 speckles. So, it does not present an appearance that lacks 47 speckles either. (shrink)

More than one third of the human brain is devoted to the processes of seeing - vision is after all the main way in which we gather information about the world. But human vision is a dynamic process during which the eyes continually sample the environment. Where most books on vision consider it as a passive activity, this book is unique in focusing on vision as an 'active' process. It goes beyond most accounts of vision where the focus is on (...) seeing, to provide an integrated account of seeing AND looking. The book starts by pointing out the weaknesses in our traditional approaches to vision and the reason we need this new approach. It then gives a thorough description of basic details of the visual and oculomotor systems necessary to understand active vision. The book goes on to show how this approach can give a new perspective on visual attention, and how the approach has progressed in the areas of visual orienting, reading, visual search, scene perception and neuropsychology. Finally, the book summarises progress by showing how this approach sheds new light on the old problem of how we maintain perception of a stable visual world. Written by two leading vision scientists, this book will be valuable for vision researchers and psychology students, from undergraduate level upwards. (shrink)

We take another look at “Just-So” solar neutrino oscillations, characterizing them by the energy Eπ/2 at which the distance-varying angle is π/2, instead of by the usual Δm 2 . The rising spectrum recently observed by SuperKamiokande is consistent with an Eπ/2 ∼6–9 MeV and marginally with 48 MeV. The pp neutrinos must then be reduced to one-half the standard solar model prediction, and 7Be neutrinos must make up a significant part of the SAGE and GALLEX gallium signal. For (...) Eπ/2 close to 9 and 48 MeV, the 7Be neutrinos will also show a large seasonal variation, emphasizing the importance of direct measurements of the 7Be neutrinos. (shrink)

In recent years, scholars have begun to lay the groundwork to justify a distinct application of ethics to the field of public health. They have highlighted important features that differentiate public health ethics from bioethics, especially public health’s emphasis on population health rather than issues of individual health. Articulations of public health ethics also tend to emphasize the role of social justice compared to the predominance of autonomy in the bioethical literature. Now that the field of public health ethics is (...) developing a unique focus and a language of its own, including a code of ethics disseminated by the American Public Health Association, the future of public health ethics may well be global health ethics, focusing on issues of global justice. As public health ethics evolves from its nascent stage of reflection to a place of action and application in the national and global arenas, two interrelated developments will need to occur: public health professionals, including practitioners, policymakers, and scholars, will need a richer understanding of the ethical challenges practitioners face on a daily basis and scholars will need to develop useful tools that practitioners may employ for identifying and tackling these ethical challenges. (shrink)

Listening to someone from some distance in a crowded room you may experience the following phenomenon: when looking at them speak, you may both hear and see where the source of the sounds is; but when your eyes are turned elsewhere, you may no longer be able to detect exactly where the voice must be coming from. With your eyes again fixed on the speaker, and the movement of her lips a clear sense of the source of the sound will (...) return. This ‘ventriloquist’ effect reflects the ways in which visual cognition can dominate auditory perception. And this phenomenological observation is one what you can verify or disconfirm in your own case just by the slightest reflection on what it is like for you to listen to someone with or without visual contact with them. (shrink)

Looking Beneath the Surface explores Arab-Islamic and Western perspectives on medical ethical issues: genetic research and treatment, abortion, organ donation, and palliative sedation and euthanasia. The contributions in this volume discuss the state of the art, the role of laws, counseling, and spiritual counseling in the decision-making process. The different approaches to the ethical issues, ways of moral reasoning, become clear in these contributions, especially the role of tradition for Islam and the importance of autonomy for the West. Beneath the (...) differences, however, the reader will also discover common values, such as the role of dignity and the value of life, and similar practices. Some of the main differences are sociocultural in nature, rather than religious as such. Well-known experts in the fields of medicine and ethics have contributed to this volume from different religious and secular backgrounds. The book offers a carefully written introduction and final chapter on intercultural comparisons. Looking Beneath the Surface is more than a collection of writings on issues in medical ethics: it helps the reader to compare different paradigms of accountability and moral reasoning. (shrink)

This essay examines mimetic pictures and the forms of subjectivity encoded in them. Mimetic pictures are representations which are unique in looking like the objects or events they depict. However, the objects or events typically have properties which are incompatible with those of the picture considered as a material artifact. Thus, if a mimetic picture looks like what it depicts, it does not look like what, considered as an artifact, it is. Since seeing a mimetic picture as a picture (...) is seeing what it looks like, it seems to follow that seeing a mimetic picture entails not seeing its material properties. But this is a paradox: it suggests that looking at mimetic pictures means not seeing what is being looked at. My aim is to resolve this paradox. ;This goal is pursued by exploring the forms of subjectivity historically attributed to the spectator of mimetic pictures. Three theorists are examined: Leon Battista Alberti, John Locke, and E. H. Gombrich. While their positions are tied to the forms of pictorial practice central to their respective historical contexts, they share a common attitude toward the paradox of pictoriality: they explain mimetic appearance as an illusion produced in the seeing subject by the picture. This commonality suggests a consistent attitude toward pictorial appearance from the Renaissance to the present; I analyze this attitude, arguing that the concept of illusion, rather than helping us grasp the forms of subjectivity encoded in pictures, obscures it. ;The essay concludes by proposing that cultures of mimesis produce a complex visual activity of recognition and disavowal which I call "fascination". I defend the thesis that mimetic pictures do not induce illusions but are displays in which the social dynamic of illusion is witnessed. This thesis is combined with Lacan's theory of the gaze to redefine mimetic pictures as theatrical entities exhibiting the social interaction of desire and visual appearance. As theatrical, pictures elicit a mode of reflective subjectivity rather than deceiving a pre-reflective spectator. This thesis resolves the paradox of mimetic pictures by analyzing their apparent possession of incompatible properties as a sign that pictures are artifacts in which the social and relational nature of appearance itself can be seen. (shrink)

The ubiquity of the Internet has given rise to new hybrid types of online users such as hybrid consumers and prosumers. This paper looks at some of the new legal challenges raised by the exciting opportunities for active participation and co-creation by such users in electronic commerce transactions. The method employed, in homage to Jon Bing, is to look back in time to understand how users in sales transactions have been progressively regarded—alternatively exposed to risk, alternatively protected—and how contract (...) law has adapted to such new developments. The paper shows that, even following the emergence of the hybrid consumer and the prosumer, there are strong arguments for the consumer’s continued protection, not least because of the increase in technological sophistication and complexity. The paper seeks to test somewhat the limits where consumer protection ends and where general contract law—with its attendant doctrines like caveat emptor—would apply again with respect to the aforementioned new users. (shrink)

Collegiality among nurses is necessary for the accomplishment of the tasks of care, for safety and quality improvement and for professional self‐regulation. Nurses, especially in hospitals, are more likely to work in groups than other professionals, yet those relationships have not been well explored. Bullying, intimidation and fear are frequently identified, while respectful disagreements are rarely described. In this paper, a single story by a nurse about her conversational conflict with another nurse is given a close reading. I use the (...) ‘triadic line’ of William Carlos Williams to format an extended excerpt of interview text, in order to make visible the rhythms and organization of spoken language. Mills' concept of a ‘vocabulary of motives’ is used to examine the rhetorical strategies deployed by each nurse. Finally, I analyze the narrative structure of the story, highlighting the ways that moral certainty and uncertainty function to involve the reader in the story, and the complex role of virtue in nursing discourse. (shrink)

As they age, many people are afraid that they might become a burden to their families and friends. In fact, fear of being a burden is one of the most frequently cited reasons for individuals who request physician aid in dying. Why is this fear so prevalent, and what are the issues underlying this concern? I argue that perceptions of individual autonomy, dependency, and dignity all contribute to the fear of becoming a burden. However, this fear is misplaced; common conceptions (...) of these values should be re-framed and re-examined. Practices that support a more community-centered type of autonomy can be found in dependency and dignity. This paper offers some practical examples of how to address common end-of-life situations that may cause anxiety to patients who are worried about being a burden. These practices include discussing expectations, both for care and how the relationship among the participants might change, and modeling respectful caregiving behaviors. Most difficult of all, though, includes cultural and societal attitude changes so that people recognize the good in receiving care and get used to the idea that they do not need to do anything to be valuable. (shrink)

It is often assumed that adaptation — a temporary change in sensitivity to a perceptual dimension following exposure to that dimension — is a litmus test for what is and is not a “primary visual attribute”. Thus, papers purporting to find evidence of number adaptation motivate a claim of great philosophical significance: That number is something that can be seen in much the way that canonical visual features, like color, contrast, size, and speed, can. Fifteen years after its reported discovery, (...) number adaptation’s existence seems to be nearly undisputed, with dozens of papers documenting support for the phenomenon. The aim of this paper is to offer a counterweight — to critically assess the evidence for and against number adaptation. After surveying the many reasons for thinking that number adaptation exists, we introduce several lesser-known reasons to be skeptical. We then advance an alternative account — the old news hypothesis — which can accommodate previously published findings while explaining various (otherwise unexplained) anomalies in the existing literature. Next, we describe the results of eight pre-registered experiments which pit our novel old news hypothesis against the received number adaptation hypothesis. Collectively, the results of these experiments undermine the number adaptation hypothesis on several fronts, whilst consistently supporting the old news hypothesis. More broadly our work raises questions about the status of adaptation itself as a means of discerning what is and is not a visual attribute. (shrink)

Processing of emotional speech in the absence of visual information relies on two auditory channels: semantics and prosody. No study to date has investigated how blindness impacts this process. Two theories, Perceptual Deficit, and Sensory Compensation, yiled different expectations about the role of visual experience (or its lack thereof) in processing emotional speech. To test the effect of vision and early visual experience on processing of emotional speech, we compared individuals with congenital blindness (CB, n = 17), individuals with late (...) blindness (LB, n = 15), and sighted controls (SC, n = 21) on identification and selective-attention of semantic and prosodic spoken-emotions. Results showed that individuals with blindness performed at least as well as SC, supporting Sensory Compensation and the role of cortical reorganisation. Individuals with LB outperformed individuals with CB, in accordance with Perceptual Deficit, supporting the role of early visual experience. The LB advantage was moderated by executive functions (working-memory). Namely, the advantage was erased for individuals with CB who showed higher levels of executive functions. Results suggest that vision is not necessary for processing of emotional speech, but early visual experience could improve it. The findings support a combination of the two aforementioned theories and reject a dichotomous view of deficiencies/enhancements of blindness. (shrink)

Behavioural spillovers refer to the influence that a given intervention targeting behaviour 1 exerts on a subsequent, non-targeted, behaviour 2, which may or may not be in the same domain (health, finance etc.) as one another. So, a nudge to exercise more, for example, could lead people to eat more or less, or possibly even to give more or less to charity depending on the nature of the spillover. But what if spillovers also operate backwards; that is, if the expectation (...) of behaviour 1 influences behaviour 0 that precedes it? For example, a person may form an intention to exercise prompted by a policy intervention but overeat at present as a result. We define such a possibility as a "spillunder". In the proposed article, we critically review the few papers that we have identified through a narrative literature review which have demonstrated spillunder effects to date, and we propose a conceptual framework. Based on evidence about the human mind and behaviour from psychology and economics, we argue that spillunder effects may be more common than the limited empirical findings suggest. We propose six representative mechanisms through which the prospect of behaviour 1 may impact behaviour 0: executive functions, moral licensing and moral cleansing, emotion regulation, energization, construal level, and savouring and dread. We further discuss the policy and practical implications of spillunder effects and examine methodological issues that need to be considered when empirically testing these effects. As with our earlier paper on spillovers, we aim to motivate other behavioural scientists to research behavioural spillunders more systematically and extensively, and to prompt decision makers to consider these effects when designing behavioural interventions. (shrink)

Contrary to Vaesen's argument that humans are unique with respect to nine cognitive capacities essential for tool use, we suggest that although such cognitive processes contribute to variation in tool use, it does not follow that these capacities arenecessaryfor tool use, nor that tool use shaped cognition per se, given the available data in cognitive neuroscience and behavioral biology.

Significant advances have recently been made in our understanding of the mechanisms of activation of proteins that require processing. Often this involves endoproteolytic cleavage of precursor forms at basic residues, and is carried out by a group of serine endoproteinases, termed the proprotein convertases. In mammals, seven different convertases have been identified to date. These act in both the regulated secretory pathway for the processing of prohormones and proneuropeptides and in the constitutive secretory pathway, in which a variety of proproteins (...) are activated endoproteolytically. The recently completed sequence of the nematode Caenorhabditis elegans genome affords a unique opportunity to examine the entire proprotein convertase family in a multicellular organism. Here we review the nature of the family, emphasising the structural features, characteristic of the four nematode genes, that supply all of the necessary functions unique to this group of serine endoproteinases. Studies of the C. elegans genes not only provide important information about the evaluation of this gene family but should help to illuminate the roles of these proteins in mammalian systems. BioEssays 22:545–553, 2000. © 2000 John Wiley & Sons, Inc. (shrink)

Inspired by an ‘apophatic turn’ in theology, philosophy and art, and with insights from existential phenomenology, the article encourages us to step back as actors in order to let life or the phenomenon itself act upon us. This kind of apophatic thinking is not so far away from the thinking of the Norwegian philosopher Olav Eikeland when he describes “Insider and Praxis Action Research”. And yet, the apophatic potentials in his way of understanding action research are here elaborated by pointing (...) to three dimensions: the Knowledge, Being and Mystery dimensions in a praxis, and to the four ways of seeing praxis from within both a “gnoseology” and an “agnoselogy”. The latter being led by a deep sense of wonder followed by what Daoist’s call Wu Wei or “effortless actions”. (shrink)

In this paper, I argue that commentators have missed a significant clue given by Descartes in coming to understand his 'ontological' proof for the existence of God. In both the analytic and synthetic presentations of the proof throughout his writings, Descartes notes that the proof works 'in the same way' as a particular geometrical proof. I explore the significance of such a parallel, and conclude that Descartes could not have intended readers to think that the argument consists of some kind (...) of intuition. I argue that for Descartes the attribute of existence is a 'second-order' attribute that is demonstrated to belong to the idea of God on the basis of 'first-order' attributes. The proof, properly understood, is in fact a demonstration. Having brought to light the geometrical parallels between the ontological and geometrical proofs, we have new evidence to resolve the 'intuition versus demonstration' controversy that has characterized much of the discussion of Descartes's ontological argument. (shrink)