PurposeTo evaluate the relationship between intraocular straylight perception and: (i) contrast sensitivity (CS), (ii) halo size, and (iii) hazard recognition distance, in the presence and absence of glare.Subjects and methodsParticipants were 15 (5 female) ophthalmologically healthy adults, aged 54.6–80.6 (median: 67.2) years. Intraocular straylight (log s) was measured using a straylight meter (C-Quant; Oculus GmbH, Wetzlar, Germany). CS with glare was measured clinically using the Optovist I device (Vistec Inc., Olching, Germany) and also within a driving simulator using Landolt Cs. (...) These were presented under both static or dynamic viewing conditions, and either with or without glare. Hazard detection distance was measured for simulated obstacles of varying contrast. For this, the participant was required to maintain a speed of 60 km/h within a custom-built nighttime driving simulator. Glare was simulated by LED arrays, moved by cable robots to mimic an oncoming car’s headlights. Halo size (“halometry”) was measured by moving Landolt Cs outward originating from the center of a static glare source. The outcome measure from “halometry” was the radius of the halo (angular extent, in degrees visual angle).ResultsThe correlation between intraocular straylight perception, log s, and hazard recognition distance under glare was poor for the low contrast obstacles (leading/subdominant eye: r = 0.27/r = 0.34). Conversely, log CS measured with glare strongly predicted hazard recognition distances under glare. This was true both when log CS was measured using a clinical device (Optovist I: r = 0.93) and within the driving simulator, under static (r = 0.69) and dynamic (r = 0.61) conditions, and also with “halometry” (r = 0.70). Glare reduced log CS and hazard recognition distance for almost all visual function parameters.ConclusionIntraocular straylight was a poor predictor of visual function and driving performance within this experiment. Conversely, CS was a strong predictor of both hazard recognition and halo extent. The presence of glare and motion lead to a degradation of CS in a driving simulator. Future studies are necessary to evaluate the effectiveness of all above-mentioned vision-related parameters for predicting fitness to drive under real-life conditions. (shrink)

This article is a collective writing experiment undertaken by philosophers of education affiliated with the PESGB (Philosophy of Education Society of Great Britain). When asked to reflect on questions concerning the Philosophy of Education in a New Key in May 2020, it was unsurprising that the effects of the coronavirus pandemic on society and on education were foremost in our minds. We wanted to consider important philosophical and educational questions raised by the pandemic, while acknowledging that, first and foremost, it (...) is a human tragedy. With nearly a million deaths reported worldwide to date, and with everyone effected in one way or another by Covid-19, there is a degree of discomfort, and a responsibility to be sensitive, in reflecting and writing about it academically. Members of this ‘Covid Collective’ come from various countries, with perspectives from Great Britain and Ireland well represented, and we see academic practice as a globally connected enterprise, especially since the digital revolution in academic publishing. The concerns raised in this article relate to but move beyond Covid-19, reflecting the impact of neoliberalism [and other political developments] on geopolitics with educational concerns as central to our focus. (shrink)

Anxiety disorders are among the most prevalent mental disorders. Present treatments such as cognitive behavior therapy and pharmacological treatments show only moderate success, which emphasizes the importance for the development of new treatment protocols. Non-invasive brain stimulation methods such as repetitive transcranial magnetic stimulation and transcranial direct current stimulation have been probed as therapeutic option for anxiety disorders in recent years. Mechanistic information about their mode of action, and most efficient protocols is however limited. Here the fear extinction model can (...) serve as a model of exposure therapies for studying therapeutic mechanisms, and development of appropriate intervention protocols. We systematically reviewed 30 research articles that investigated the impact of rTMS and tDCS on fear memory and extinction in animal models and humans, in clinical and healthy populations. The results of these studies suggest that tDCS and rTMS can be efficient methods to modulate fear memory and extinction. Furthermore, excitability-enhancing stimulation applied over the vmPFC showed the strongest potential to enhance fear extinction. We further discuss factors that determine the efficacy of rTMS and tDCS in the context of the fear extinction model and provide future directions to optimize parameters and protocols of stimulation for research and treatment. (shrink)

An Artificial Intelligence algorithm trained on data that reflect racial biases may yield racially biased outputs, even if the algorithm on its own is unbiased. For example, algorithms used to schedule medical appointments in the USA predict that Black patients are at a higher risk of no-show than non-Black patients, though technically accurate given existing data that prediction results in Black patients being overwhelmingly scheduled in appointment slots that cause longer wait times than non-Black patients. This perpetuates racial inequity, in (...) this case lesser access to medical care. This gives rise to one type of Accuracy-Fairness trade-off: preserve the efficiency offered by using AI to schedule appointments or discard that efficiency in order to avoid perpetuating ethno-racial disparities. Similar trade-offs arise in a range of AI applications including others in medicine, as well as in education, judicial systems, and public security, among others. This article presents a framework for addressing such trade-offs where Machine Learning and Optimization components of the algorithm are decoupled. Applied to medical appointment scheduling, our framework articulates four approaches intervening in different ways on different components of the algorithm. Each yields specific results, in one case preserving accuracy comparable to the current state-of-the-art while eliminating the disparity. (shrink)

This collective article discusses the philosophy of modern higher education in Iran, which in this case, optimistically, its history dates back to the founding of Dār al-fonūn —if we consider Dār al-fonūn as a university. Otherwise, its origin can be traced back to the University of Tehran. Central to this article is the emphasis on the lack of philosophy of higher education in Iran. Therefore, most of the criticisms in front of us are related to the internal inconsistency in the (...) Iranian higher education system due to the lack of a national-indigenized-official philosophy of higher education in Iran. Furthermore, The Islamic Revolution of 1979 brought about fundamental changes in higher education. Accordingly, several controversial issues including the rapid growth of higher education, the Islamization of universities, cultural narratives in higher education, the increase in students, especially women and the low-income class of the country were also explored. Therefore, in this collection, the political, economic, social, cultural, moral, technological and historical dimensions of Iranian higher education were examined. (shrink)

In face of the multiple controversies surrounding the DSM process in general and the development of DSM-5 in particular, we have organized a discussion around what we consider six essential questions in further work on the DSM. The six questions involve: 1) the nature of a mental disorder; 2) the definition of mental disorder; 3) the issue of whether, in the current state of psychiatric science, DSM-5 should assume a cautious, conservative posture or an assertive, transformative posture; 4) the role (...) of pragmatic considerations in the construction of DSM-5; 5) the issue of utility of the DSM – whether DSM-III and IV have been designed more for clinicians or researchers, and how this conflict should be dealt with in the new manual; and 6) the possibility and advisability, given all the problems with DSM-III and IV, of designing a different diagnostic system. Part 1 of this article took up the first two questions. Part 2 took up the second two questions. Part 3 now deals with Questions 5 & 6. Question 5 confronts the issue of utility, whether the manual design of DSM-III and IV favors clinicians or researchers, and what that means for DSM-5. Our final question, Question 6, takes up a concluding issue, whether the acknowledged problems with the earlier DSMs warrants a significant overhaul of DSM-5 and future manuals. As in Parts 1 & 2 of this article, the general introduction, as well as the introductions and conclusions for the specific questions, are written by James Phillips, and the responses to commentaries are written by Allen Frances. (shrink)

The mechanisms by which most receptor protein‐tyrosine kinases (RTKs) transmit signals are now well established. Binding of ligand results in the dimerization of receptor monomers followed by transphosphorylation of tyrosine residues within the cytoplasmic domains of the receptors. This tidy picture has, however, some strange characters lurking around the edges. Cases have now been identified in which RTKs lack kinase activity, but, despite being “dead” appear to have roles in signal transduction. Even stranger are the cases in which genes encoding (...) RTKs produce protein products consisting of only a portion of the kinase domain. At least one such “fractured” RTK appears to be involved in signal transduction. Here we describe how these strange molecules might function and discuss the questions associated with their evolution. BioEssays 23:69–76, 2001. © 2001 John Wiley & Sons, Inc. (shrink)

Despite a long and venerable tradition, the material constitution almost disappeared from constitutional scholarship after the Second World War. Its marginalisation saw the rise of a normative and legalistic style in constitutional law that neglected the role of social reality and political economy. This collection not only retrieves the history and development of the concept of the material constitution, but it tests its theoretical and practical relevance in the contemporary world. With essays from a diverse range of contributors, the collection (...) demonstrates that the material constitution speaks to several pressing issues, from the significance of economic development in constitutional orders to questions of constitutional identity. Offering original analyses supported by international case studies, this book develops a new model of constitutional reality, one that informs our understanding of the world in profound ways. (shrink)

Michael Peters, Sonja Arndt & Marek TesarThis is a collective writing experiment of PESA members, including its Executive Committee, asking questions of the Philosophy of Education in a New Key. Co...

Michael A. PetersBeijing Normal UniversityThe ancient concept of ‘self-cultivation’ with its roots in Confucianism and Hellenistic philosophy can also be utilised as tool for understanding the prac...

The article analyzes the neural and functional grounding of language skills as well as their emergence in hominid evolution, hypothesizing stages leading from abilities known to exist in monkeys and apes and presumed to exist in our hominid ancestors right through to modern spoken and signed languages. The starting point is the observation that both premotor area F5 in monkeys and Broca's area in humans contain a “mirror system” active for both execution and observation of manual actions, and that F5 (...) and Broca's area are homologous brain regions. This grounded the mirror system hypothesis of Rizzolatti and Arbib (1998) which offers the mirror system for grasping as a key neural “missing link” between the abilities of our nonhuman ancestors of 20 million years ago and modern human language, with manual gestures rather than a system for vocal communication providing the initial seed for this evolutionary process. The present article, however, goes “beyond the mirror” to offer hypotheses on evolutionary changes within and outside the mirror systems which may have occurred to equip Homo sapiens with a language-ready brain. Crucial to the early stages of this progression is the mirror system for grasping and its extension to permit imitation. Imitation is seen as evolving via a so-called simple system such as that found in chimpanzees (which allows imitation of complex “object-oriented” sequences but only as the result of extensive practice) to a so-called complex system found in humans (which allows rapid imitation even of complex sequences, under appropriate conditions) which supports pantomime. This is hypothesized to have provided the substrate for the development of protosign, a combinatorially open repertoire of manual gestures, which then provides the scaffolding for the emergence of protospeech (which thus owes little to nonhuman vocalizations), with protosign and protospeech then developing in an expanding spiral. It is argued that these stages involve biological evolution of both brain and body. By contrast, it is argued that the progression from protosign and protospeech to languages with full-blown syntax and compositional semantics was a historical phenomenon in the development of Homo sapiens, involving few if any further biological changes. Key Words: gestures; hominids; language evolution; mirror system; neurolinguistics; primates; protolanguage; sign language; speech; vocalization. (shrink)

Introduction: education, philosophy and politics -- Writing the self: Wittgenstein, confession and pedagogy -- Nietzsche, nihilism and the critique of modernity: post-Nietzschean philosophy of education -- Heidegger, education and modernity -- Truth-telling as an educational practice of the self: Foucault and the ethics of subjectivity -- Neoliberal governmentality: Foucault on the birth of biopolitics -- Lyotard, nihilism and education -- Gilles Deleuze's 'societies of control': from disciplinary pedagogy to perpetual training -- Geophilosophy, education and the pedagogy of the concept - (...) Humanism, Derrida and the new humanities -- Politics and deconstruction: Derrida, neoliberalism and democracy -- Neopragmatism, ethnocentrism and the politics of the ethnos: Rorty's 'postmodernist bourgeois liberalism' -- Achieving America: postmodernism and Rorty's critique of the cultural left -- Deranging the investigations: Cavell on the philosophy of the child -- White philosophy in/of America. (shrink)

ABSTRACT This commentary defends an interpretation of Spinoza that preserves some key elements of traditional rationalism, in which reason does have an independent path to the truth. While it agrees with Lloyd’s general view, in which reason, imagination, and emotion are more closely tied than the Cartesian scheme, in which reason is distinct from the world of bodies, the paper disagrees with her central claim that reason is constituted by the imagination. It argues that the imagination is effective to the (...) extent that it produces forms of knowledge that are analogous to reason. The paper considers her interpretation of Flaubert and the Biblical prophets and claims that it cannot account for why some forms of the imagination might be mistaken or superior to others. In conclusion, it points out that, while ‘unresolved multiplicity’ might be the predicament of those led by the imagination, Spinoza thinks that reason leads to a common perspective and is a superior guide to life. (shrink)

Michael A. Petersa and Fazal Rizvib aBeijing Normal University, Beijing, PR China; bMelbourne University, Melbourne, Australia Our minds are still racing back and forth, longing for a return to ‘no...

Western Marxism, since its Western deviation and theoretical development in the 1920s, developed in diverse ways that has reflected the broader philosophical environment. First, a theory of conscio...

Using relevant encyclicals issued over the last 100 years, the author extracts those principles that constitute the underpinnings of Catholic Social Teaching about the employment relationship and contemplates implications of their incorporation into human resource policy. Respect for worker dignity, for his or her family's economic security, and for the common good of society clearly emerge as the primary guidelines for responsible human resource management. Dovetailing these three Church mandates with the economic objectives of the firm could, in essence, alter (...) the firm's nature because profit motivations would be constrained by consideration for worker and societal welfare. Integration of Church teaching with current corporate goals should therefore impact greatly on a variety of human resource policies. (shrink)

This dialogue (trilogue) is an attempt to critically discuss the technoscientific convergence that is taking place with biodigital technologies in the postdigital condition. In this discussion, Sarah Hayes, Petar Jandrić and Michael A. Peters examine the nature of the convergences, their applications for bioeconomic sustainability and associated ecopedagogies. The dialogue paper raises issues of definition and places the technological convergence (‘nano-bio-info-cogno’) – of new systems biology and digital technologies at the nano level – in an evolutionary context to speculate, (...) on the basis of the latest research, future possibilities. The paper also reviews these developments within familiar landscapes of posthumanism and postmodernism, raises the question of political bioeconomy and the role of postdigital education within it. (shrink)

Choice Outstanding Academic Title, 1996. In hundreds of articles by experts from around the world, and in overviews and "road maps" prepared by the editor, The Handbook of Brain Theory and Neural Networkscharts the immense progress made in recent years in many specific areas related to two great questions: How does the brain work? and How can we build intelligent machines? While many books have appeared on limited aspects of one subfield or another of brain theory and neural networks, the (...) Handbookcovers the entire sweep of topics—from detailed models of single neurons, analyses of a wide variety of biological neural networks, and connectionist studies of psychology and language, to mathematical analyses of a variety of abstract neural networks, and technological applications of adaptive, artificial neural networks. The excitement, and the frustration, of these topics is that they span such a broad range of disciplines including mathematics, statistical physics and chemistry, neurology and neurobiology, and computer science and electrical engineering as well as cognitive psychology, artificial intelligence, and philosophy. Thus, much effort has gone into making the Handbookaccessible to readers with varied backgrounds while still providing a clear view of much of the recent, specialized research in specific topics. The heart of the book, part III, comprises of 267 original articles by leaders in the various fields, arranged alphabetically by title. Parts I and II, written by the editor, are designed to help readers orient themselves to this vast range of material. Part I, Background, introduces several basic neural models, explains how the present study of brain theory and neural networks integrates brain theory, artificial intelligence, and cognitive psychology, and provides a tutorial on the concepts essential for understanding neural networks as dynamic, adaptive systems. Part II, Road Maps, provides entry into the many articles of part III through an introductory "Meta-Map" and twenty-three road maps, each of which tours all the Part III articles on the chosen theme. (shrink)

This paper, based on an invited Thesis Eleven presentation, provides a ‘map of technopolitics’ that springs from an investigation of the theoretical notion of technological convergence adopted by the US National Science Foundation, signaling a new paradigm of ‘nano-bio-info-cogno’ technologies. This integration at the nano-level is expected to drive the next wave of scientific research, technology and knowledge economy. The paper explores the concept of ‘technopolitics’ by investigating the links between Wittgenstein’s anti-scientism and Lyotard’s ‘technoscience’, reviewing the history of the (...) notion in the work of the Belgium philosopher Gilbert Hottois. The ‘deep convergence’ representing a new technoscientific synergy is the product of long-term trends of ‘bioinformational capitalism’ that harnesses the twin forces of information and genetic sciences that coalesce in the least mature ‘cognosciences’ in their application to education and research. The map of technopolitics systematically identifies the political relations between Big Tech and ‘new digital publics’ to reveal that the new paradigm is based on the supreme value of cognitive efficiency. There are a closely-knit cluster of concerns that frame a map of political issues about the fifth-generation technological impacts on human beings, their bodies and minds, and public institutions, not least the logic of the distribution and ownership of data, information and knowledge, and its effects on democracy. (shrink)

In this paper, we offer a Piagetian perspective on the construction of the logico-mathematical schemas which embody our knowledge of logic and mathematics. Logico-mathematical entities are tied to the subject's activities, yet are so constructed by reflective abstraction that they result from sensorimotor experience only via the construction of intermediate schemas of increasing abstraction. The axiom set does not exhaust the cognitive structure (schema network) which the mathematician thus acquires. We thus view truth not as something to be defined within (...) the closed world of a formal system but rather in terms of the schema network within which the formal system is embedded. We differ from Piaget in that we see mathematical knowledge as based on social processes of mutual verification which provide an external drive to any necessary dynamic of reflective abstraction within the individual. From this perspective, we argue that axiom schemas tied to a preferred interpretation may provide a necessary intermediate stage of reflective abstraction en route to acquisition of the ability to use formal systems in abstracto. (shrink)

Michael A. PetersBeijing Normal University, Beijing, PR China;There is an ecology of bad ideas, just as there is an ecology of weeds– Gregory Bateson (1972, p. 492)While there are classical anteced...

This paper begins the development of a pragmatics of emotion based on the pragma-dialectical programme, Externalization, Socialization, Functionalization, and Dialectification, applied to the emotional mode of argumentation. The first step points out a systematic equivocation within pragma-dialectics between the notion of argument and that of 'dialectics.' With this cleared, it is shown that each of the first three main assumptions can be altered to accommodate a non-logical mode of communication. However, dialectification, insofar as it is actually defining of the dialectical (...) mode, must be created anew. A defining assumption for emotionality is presented as a replacement for dialectification. (shrink)

Viral modernity is a concept based upon the nature of viruses, the ancient and critical role they play in evolution and culture, and the basic application to understanding the role of information and forms of bioinformation in the social world. The concept draws a close association between viral biology on the one hand, and information science on the other – it is an illustration and prime example of bioinformationalism that brings together two of the most powerful forces that now drive (...) cultural evolution. The concept of viral modernity applies to viral technologies, codes and ecosystems in information, publishing, education and emerging knowledge systems. This paper traces the relationship between epidemics, quarantine, and public health management and outlines elements of viral-digital philosophy based on the fusion of living and technological systems. We discuss Covid-19 as a ‘bioinformationalist’ response that represents historically unprecedented level of sharing information from the sequencing of the genome to testing for a vaccination. Finally, we look at the US response to Covid-19 through the lens of infodemics and post-truth. The paper is followed by three open reviews, which further refine its conclusions as they relate to philosophy and the notion of the virus as Pharmakon. (shrink)

Volume 51, Issue 8, July 2019, Page 751-756.

When a young child begins to engage in everyday interaction, she has to acquire competencies that allow her to be oriented to the conventions that inform talk-in-interaction and, at the same time, deal with emotional or affective dimensions of experience. The theoretical positions associated with these domains - social-action and emotion - provide very different accounts of human development and this book examines why this is the case. Through a longitudinal video-recorded study of one child learning how to talk, (...) class='Hi'>Michael A. Forrester develops proposals that rest upon a comparison of two perspectives on everyday parent-child interaction taken from the same data corpus - one informed by conversation analysis and ethnomethodology, the other by psychoanalytic developmental psychology. Ultimately, what is significant for attaining membership within any culture is gradually being able to display an orientation towards both domains - doing and feeling, or social-action and affect. (shrink)

Positions in dialogic dispute are presented enthymematically. It is important to explore the position the disputant holds. A model is offered which relies on the presentation of a counter-example to an inferred missing premiss. The example may be: [A+J embraced as falling under the rule; [A-] rejected as basically changing the position; or, [R] rejected as changing the proffered missing premiss. In each case the offered model indicates the next appropriate action. The focus of the model is on uncovering the (...) position actually held by the disputant as opposed to identifying the "logically correct" enthymematic premiss. (shrink)

Last Friday, in the big light of last Friday night,We drove home from Cornwall to Hartford, late.It was not a night blown at a glassworks in ViennaOr Venice, motionless, gathering time and dust.The...

In Book 2 of The Peloponnesian War, the ancient Greek historian Thucydides describes the Plague of Athens which killed an estimated 75,000 people in 430 BC, the second year of the war. Thucydides i...

With an up-to-date synopsis, review, and critique of his writings, this book demonstrates Derrida's almost singular power to reconceptualize and reimagine the ...

Coalescent argumentation is a normative ideal that involves the joining together of two disparate claims through recognition and exploration of opposing positions. By uncovering the crucial connection between a claim and the attitudes, beliefs, feelings, values and needs to which it is connected dispute partners are able to identify points of agreement and disagreement. These points can then be utilized to effect coalescence, a joining or merging of divergent positions, by forming the basis for a mutual investigation of non-conflictual options (...) that might otherwise have remained unconsidered. The essay proceeds by defining and discussing ‘argument’, ‘position’ and ‘understanding’. These notions are then brought together to outline the concept of coalescent reasoning. (shrink)

Ludwig Wittgenstein was a reclusive and enigmatic philosopher, writing his most significant work off campus in remote locations. He also held a chair in the Philosophy Department at Cambridge, and is one of the university’s most recognized even if, as Ray Monk says, ‘reluctant professors’ of philosophy. Paradoxically, although Wittgenstein often showed contempt for the atmosphere at Cambridge and for academic philosophy in particular, it is hard to conceive of him making his significant contributions without considerable support from his academic (...) colleagues, his research fellowship and later teaching career at Cambridge. It is this conflicted relationship we explore, between the revolutionary thinker and his base within an educational institution. Starting from a brief biographical sketch of Wittgenstein’s academic life at Cambridge, including his involvement as a student and faculty member in the Moral Sciences Club, we look at how he reconceived the role of philosophy throughout this... (shrink)