Languages are transmitted from person to person and generation to generation via a process of iterated learning: people learn a language from other people who once learned that language themselves. We analyze the consequences of iterated learning for learning algorithms based on the principles of Bayesian inference, assuming that learners compute a posterior distribution over languages by combining a prior (representing their inductive biases) with the evidence provided by linguistic data. We show that when learners sample languages from this posterior (...) distribution, iterated learning converges to a distribution over languages that is determined entirely by the prior. Under these conditions, iterated learning is a form of Gibbs sampling, a widely-used Markov chain Monte Carlo algorithm. The consequences of iterated learning are more complicated when learners choose the language with maximum posterior probability, being affected by both the prior of the learners and the amount of information transmitted between generations. We show that in this case, iterated learning corresponds to another statistical inference algorithm, a variant of the expectation-maximization (EM) algorithm. These results clarify the role of iterated learning in explanations of linguistic universals and provide a formal connection between constraints on language acquisition and the languages that come to be spoken, suggesting that information transmitted via iterated learning will ultimately come to mirror the minds of the learners. (shrink)

Determining the knowledge that guides human judgments is fundamental to understanding how people reason, make decisions, and form predictions. We use an experimental procedure called ‘‘iterated learning,’’ in which the responses that people give on one trial are used to generate the data they see on the next, to pinpoint the knowledge that informs people's predictions about everyday events (e.g., predicting the total box office gross of a movie from its current take). In particular, we use this method to discriminate (...) between two models of human judgments: a simple Bayesian model (Griffiths & Tenenbaum, 2006) and a recently proposed alternative model that assumes people store only a few instances of each type of event in memory (MinK; Mozer, Pashler, & Homaei, 2008). Although testing these models using standard experimental procedures is difficult due to differences in the number of free parameters and the need to make assumptions about the knowledge of individual learners, we show that the two models make very different predictions about the outcome of iterated learning. The results of an experiment using this methodology provide a rich picture of how much people know about the distributions of everyday quantities, and they are inconsistent with the predictions of the MinK model. The results suggest that accurate predictions about everyday events reflect relatively sophisticated knowledge on the part of individuals. (shrink)

How can the impenetrability hypothesis be empirically tested? We comment on the role of signal detection measures, suggesting that context effects on discriminations for which post-perceptual cues are irrelevant, or on neural activity associated with early vision, would challenge impenetrability. We also note the great computational power of the proposed pre-perceptual attention processes and consider the implications for testability of the theory.

Many of the problems studied in cognitive science are inductive problems, requiring people to evaluate hypotheses in the light of data. The key to solving these problems successfully is having the right inductive biases—assumptions about the world that make it possible to choose between hypotheses that are equally consistent with the observed data. This article explores a novel experimental method for identifying the biases that guide human inductive inferences. The idea behind this method is simple: This article uses the responses (...) produced by a participant on one trial to generate the stimuli that either they or another participant will see on the next. A formal analysis of this “iterated learning” procedure, based on the assumption that the learners are Bayesian agents, predicts that it should reveal the inductive biases of these learners, as expressed in a prior probability distribution over hypotheses. This article presents a series of experiments using stimuli based on a well-studied set of category structures, demonstrating that iterated learning can be used to reveal the inductive biases of human learners. (shrink)

Information changes as it is passed from person to person, with this process of cultural transmission allowing the minds of individuals to shape the information that they transmit. We present mathematical models of cultural transmission which predict that the amount of information passed from person to person should affect the rate at which that information changes. We tested this prediction using a function-learning task, in which people learn a functional relationship between two variables by observing the values of those variables. (...) We varied the total number of observations and the number of those observations that take unique values. We found an effect of the number of observations, with functions transmitted using fewer observations changing form more quickly. We did not find an effect of the number of unique observations, suggesting that noise in perception or memory may have affected learning. (shrink)

However, other leading philosophers of the era--such as David Hume, Adam Smith, and J.G. Herder--placed greater emphasis on feeling, seeing moral and political ...

Michael L. Morgan is Emeritus Chancellor Professor at Indiana University and the Grafstein Visiting Chair in Jewish Philosophy at the University of Toronto. He has written extensively on ancient Greek philosophy, modern Jewish philosophy, and post-Holocaust theology and ethics.

This book provides a clear and helpful overview of the philosophical core of the thought of Emmanuel Levinas, one of the most significant and interesting philosophers of the late twentieth century.

The goal of military medicine is to conserve the fighting force necessary to prosecute just wars. Just wars are defensive or humanitarian. A defensive war protects one's people or nation. A humanitarian war rescues a foreign, persecuted people or nation from grave human rights abuse. To provide medical care during armed conflict, military medical ethics supplements civilian medical ethics with two principles: military-medical necessity and broad beneficence. Military-medical necessity designates the medical means required to pursue national self-defense or humanitarian intervention. (...) While clinical-medical necessity directs care to satisfy urgent medical needs, military-medical necessity utilizes medical care to satisfy the just aims of war. Military medicine may therefore attend the lightly wounded before the critically wounded or use medical care to win hearts and minds. The underlying principle is broad, not narrow, beneficence. The latter addresses private interests, while broad beneficence responds to the collective welfare of the political community. (shrink)

Although Lewis's personal journey was a deeply philosophical search for the most adequate worldview, the few extant books about his Christian philosophy focus on specific topics rather than his overall worldview. In this book, Michael Peterson develops a comprehensive, coherent framework for understanding Lewis's Christian worldview-from his arguments from reason, morality, and desire to his ideas about Incarnation, Trinity, and Atonement. All worldviews address fundamental questions about reality, knowledge, human nature, meaning, and so forth. Peterson therefore examines Lewis's Christian (...) approach to these same questions in interaction with other worldviews. Accenting that the intellectual strength and existential relevance of Lewis's works rest on his philosophical acumen as well as his Christian orthodoxy-which he famously called "mere Christianity"-Peterson skillfully shows how Lewis's Christian thought engages a variety of important issues raised by believers and nonbelievers alike: the problem of evil and suffering, the problem of religious diversity, the problem of meaning, the relation of prayer and providence, the relation of science and religion, the nature of humanity, and others. Just as Lewis was gifted in communicating philosophical ideas and arguments in an accessible style, Peterson has crafted a major contribution to Lewis scholarship presented in a way that will interest scholars and benefit the general reader ". (shrink)

In 12 narratives, medical workers from Afghanistan, Darfur, Gaza, Iraq, Israel, Myanmar, and Ukraine describe the day-to-day challenges of providing quality medical care in austere conflict zones. Faced with severe shortages of supplies, overwhelmed by sick and injured civilians and soldiers, and subject to constant attacks on medical personnel and facilities, the contributors to this collection confront difficult dilemmas of justice, medical impartiality, neutrality, burnout, and moral injury as they struggle to fulfill their duties as medical professionals, military officers, and (...) conscientious citizens. (shrink)

Introduction: "we are all Egypt" -- The allure of commonality -- Sharing the world in common with others -- Imagining the demos: sharing identity in feminist and democratic theory -- Politicizing the demos: sharing affect as self-conscious world-building -- Pluralizing the demos: sharing agency and the dilemma of democratic exclusion -- "This is what democracy looks like": protests as democratic imaginary.

A far-reaching account of what is meant by the human spirit, and its relevance to the worldwide efforts being made to meet the challenges that define this historical moment. Notions of identity, grounded in socially constructed conceptualizations of race, gender, class, and nationality continue to pose serious threats to our collective future. At the same time, everything that had once been associated with the human spirit is often understood today only in terms of neurobiology and cognitive science. Yet if the (...) twenty-first century is to be any different from the century just ended, the protection and development of the human spirit will have to emerge as an appropriate focus for judging the moral legitimacy of human acts, social policy, or cultural or religious practices. In a Bahá'í-inspired approach to these issues, the unique perspectives contained in the Bahá'í writings are explored alongside the rich diversity of other philosophical, epistemic, and moral traditions that have contributed to our understanding of the nature and needs of the human spirit over the ages. (shrink)

An emerging class of theories concerning the functional structure of the brain takes the reuse of neural circuitry for various cognitive purposes to be a central organizational principle. According to these theories, it is quite common for neural circuits established for one purpose to be exapted (exploited, recycled, redeployed) during evolution or normal development, and be put to different uses, often without losing their original functions. Neural reuse theories thus differ from the usual understanding of the role of neural plasticity (...) (which is, after all, a kind of reuse) in brain organization along the following lines: According to neural reuse, circuits can continue to acquire new uses after an initial or original function is established; the acquisition of new uses need not involve unusual circumstances such as injury or loss of established function; and the acquisition of a new use need not involve (much) local change to circuit structure (e.g., it might involve only the establishment of functional connections to new neural partners). Thus, neural reuse theories offer a distinct perspective on several topics of general interest, such as: the evolution and development of the brain, including (for instance) the evolutionary-developmental pathway supporting primate tool use and human language; the degree of modularity in brain organization; the degree of localization of cognitive function; and the cortical parcellation problem and the prospects (and proper methods to employ) for function to structure mapping. The idea also has some practical implications in the areas of rehabilitative medicine and machine interface design. (shrink)

The nature of cognition is being re-considered. Instead of emphasizing formal operations on abstract symbols, the new approach foregrounds the fact that cognition is, rather, a situated activity, and suggests that thinking beings ought therefore be considered first and foremost as acting beings. The essay reviews recent work in Embodied Cognition, provides a concise guide to its principles, attitudes and goals, and identifies the physical grounding project as its central research focus.

In this paper, I summarize an emerging debate in the cognitive sciences over the right taxonomy for understanding cognition – the right theory of and vocabulary for describing the structure of the mind – and the proper role of neuroscientific evidence in specifying this taxonomy. In part because the discussion clearly entails a deep reconsideration of the supposed autonomy of psychology from neuroscience, this is a debate in which philosophers should be interested, with which they should be familiar, and to (...) which they should contribute. Here, I outline some of the positions being advocated, and reflect on some of the possible implications of this work both for scientific and folk psychology. (shrink)

To accept that cognition is embodied is to question many of the beliefs traditionally held by cognitive scientists. One key question regards the localization of cognitive faculties. Here we argue that for cognition to be embodied and sometimes embedded, means that the cognitive faculty cannot be localized in a brain area alone. We review recent research on neural reuse, the 1/f structure of human activity, tool use, group cognition, and social coordination dynamics that we believe demonstrates how the boundary between (...) the different areas of the brain, the brain and body, and the body and environment is not only blurred but indeterminate. In turn, we propose that cognition is supported by a nested structure of task-specific synergies, which are softly assembled from a variety of neural, bodily, and environmental components (including other individuals), and exhibit interaction dominant dynamics. (shrink)

Neural reuse is a form of neuroplasticity whereby neural elements originally developed for one purpose are put to multiple uses. A diverse behavioral repertoire is achieved by means of the creation of multiple, nested, and overlapping neural coalitions, in which each neural element is a member of multiple different coalitions and cooperates with a different set of partners at different times. Neural reuse has profound implications for how we think about our continuity with other species, for how we understand the (...) similarities and differences between psychological processes, and for how best to pursue a unified science of the mind.After Phrenology: Neural Reuse and the Interactive Brain surveys the terrain and advocates for a series of reforms in psychology and cognitive neuroscience. The book argues that, among other things, we should capture brain function in a multidimensional manner, develop a new, action-oriented vocabulary for psychology, and recognize that higher-order cognitive processes are built from complex configurations of already evolved circuitry. (shrink)

This paper argues that research on the business case for corporate social responsibility (CSR) must account for the path dependent nature of firm-stakeholderrelations, and develops the construct of stakeholder influence capacity (SIC) to fill this void. SIC helps to explain why the effects of CSR on corporate financial performance (CFP) vary across firms and across time, therein providing a missing link in the study of the business case. This paper distinguishes CSR from related and confounded corporate resource allocations and from (...) corporate social performance (CSP), then incorporates SIC into a model that explains how acts of CSR are transformed into CFP through stakeholder relationships. This paper also develops a set of propositions to aid future research on the contingencies that produce variable financial returns to investments in CSR. (shrink)

This essay introduces the massive redeployment hypothesis, an account of the functional organization of the brain that centrally features the fact that brain areas are typically employed to support numerous functions. The central contribution of the essay is to outline a middle course between strict localization on the one hand, and holism on the other, in such a way as to account for the supporting data on both sides of the argument. The massive redeployment hypothesis is supported by case studies (...) of redeployment, and compared and contrasted with other theories of the localization of function. (shrink)

This essay introduces the massive redeployment hypothesis, an account of the functional organization of the brain that centrally features the fact that brain areas are typically employed to support numerous functions. The central contribution of the essay is to outline a middle course between strict localization on the one hand, and holism on the other, in such a way as to account for the supporting data on both sides of the argument. The massive redeployment hypothesis is supported by case studies (...) of redeployment, and compared and contrasted with other theories of the localization of function. (shrink)

Do firms benefit from their voluntary efforts to alleviate the many problems confronting society? A vast literature establishing a “business case” for corporate social responsibility appears to find that usually they do. However, as argued herein, the business case literature has established only that firms usually benefit from responding to the demands of their primary stakeholders. The nature of the relationship between the interests of business and those of broader society, beyond a subset of powerful primary stakeholders, remains an open (...) question despite this vast literature. This article develops a set of propositions that highlight constraints on firms’ ability to profit from CSR and outlines a set of managerial challenges on which researchers must focus their attention to truly determine whether and when firms can profit by responding to the needs of society. (shrink)

Abstract: The massive redeployment hypothesis (MRH) is a theory about the functional topography of the human brain, offering a middle course between strict localization on the one hand, and holism on the other. Central to MRH is the claim that cognitive evolution proceeded in a way analogous to component reuse in software engineering, whereby existing components-originally developed to serve some specific purpose-were used for new purposes and combined to support new capacities, without disrupting their participation in existing programs. If the (...) evolution of cognition was indeed driven by such exaptation, then we should be able to make some specific empirical predictions regarding the resulting functional topography of the brain. This essay discusses three such predictions, and some of the evidence supporting them. Then, using this account as a background, the essay considers the implications of these findings for an account of the functional integration of cognitive operations. For instance, MRH suggests that in order to determine the functional role of a given brain area it is necessary to consider its participation across multiple task categories, and not just focus on one, as has been the typical practice in cognitive neuroscience. This change of methodology will motivate (even perhaps necessitate) the development of a new, domain-neutral vocabulary for characterizing the contribution of individual brain areas to larger functional complexes, and direct particular attention to the question of how these various area roles are integrated and coordinated to result in the observed cognitive effect. Finally, the details of the mix of cognitive functions a given area supports should tell us something interesting not just about the likely computational role of that area, but about the nature of and relations between the cognitive functions themselves. For instance, growing evidence of the role of “motor” areas like M1, SMA and PMC in language processing, and of “language” areas like Broca’s area in motor control, offers the possibility for significantly reconceptualizing the nature both of language and of motor control. (shrink)

Emmanuel Levinas emerged as an influential philosophical voice in the final decades of the twentieth century, and his reputation has continued to flourish and increase in our own day. His central themes--the primacy of the ethical and the core of ethics as our responsibility to and for others--speak to readers from a host of disciplines and perspectives. However, his writings and thought are challenging and difficult. The Oxford Handbook of Levinas contains essays that aim to clarify and engage Levinas and (...) his writings in a number of ways. Some focus on central themes of his work, others on the ways in which he read and was influenced by figures from Plato, Hobbes, Descartes, and Kant to Blanchot, Husserl, Heidegger, and Derrida. And there are essays on how his thinking has been appropriated in moral and political thought, psychology, film criticism, and more, and on the relation between his thinking and religious themes and traditions. Finally, several essays deal primarily with how readers have criticized him and found him wanting. The volume exposes and explores both the depth of Levinas's philosophical work and the range of applications to which it has been put, with special attention to clarifying why his interests in the human condition, the crisis of civilization, the centrality and character of ethics and morality, and the very meaning of human experience should be of interest to the widest range of readers. (shrink)

In Discovering Levinas, Michael L. Morgan shows how this thinker faces in novel and provocative ways central philosophical problems of twentieth-century philosophy and religious thought. He tackles this task by placing Levinas in conversation with philosophers such as Donald Davidson, Stanley Cavell, John McDowell, Onora O'Neill, Charles Taylor, and Cora Diamond. He also seeks to understand Levinas within philosophical, religious, and political developments in the history of twentieth-century intellectual culture. Morgan demystifies Levinas by examining his unfamiliar and surprising vocabulary, (...) interpreting texts with an eye to clarity, and arguing that Levinas can be understood as a philosopher of the everyday. Morgan also shows that Levinas's ethics is not morally and politically irrelevant nor is it excessively narrow and demanding in unacceptable ways. Neither glib dismissal nor fawning acceptance, this book provides a sympathetic reading that can form a foundation for a responsible critique. (shrink)

Medical rules of eligibility permit severely injured Iraqi and Afghan nationals to receive care in Coalition medical facilities only if bed space is available and their injuries result directly from Coalition fire. The first rule favors Coalition soldiers over host-nation nationals and contradicts the principle of impartial, needs-based medical care. To justify preferential care for compatriots, wartime medicine invokes associative obligations of care that favor friends, family, and comrades-in-arms. Associative obligations have little place in peacetime medical care but significantly affect (...) wartime medicine. The second rule suggests liability for collateral harm that is unsupported by international law and military ethics. Absent liability, there are pragmatic reasons to offer medical care to injured local civilians if it quells resentment and cements support for Coalition forces. In contrast to peacetime medicine, military necessity and associative obligations outweigh distributive principles based on medical need during war. (shrink)

“The physics of representation” aims to define the word “representation” as used in the neurosciences, argue that such representations as described in neuroscience are related to and usefully illuminated by the representations generated by modern neural networks, and establish that these entities are “representations in good standing”. We suggest that Poldrack succeeds in, exposes some tensions between the broad use of the term in neuroscience and the narrower class of entities that he identifies in the end, and between the meaning (...) of “representation” in neuroscience and in psychology in, and fails in. This results in some hard choices: give up on the broad scope of the term in neuroscience or continue to embrace the broad, psychologically inflected sense of the term, and deny the entities generated by neural nets are representations in the relevant sense. (shrink)

b>. Recent findings in cognitive science suggest that the epistemic subject is more complex and epistemically porous than is generally pictured. Human knowers are open to the world via multiple channels, each operating for particular purposes and according to its own logic. These findings need to be understood and addressed by the philosophical community. The current essay argues that one consequence of the new findings is to invalidate certain arguments for epistemic anti-realism.

: The debate between proponents of ideal and non-ideal approaches to political philosophy has thus far been framed as a meta-level debate about normative theory. The argument of this essay will be that the ideal/non-ideal debate can be helpfully reframed as a ground-level debate within normative theory. Specifically, it can be understood as a debate within the applied normative field of professional ethics, with the profession being examined that of political philosophy itself. If the community of academic political theorists and (...) philosophers cannot help us navigate the problems we face in actual political life, they have not lived up to the moral demands of their vocation. A moderate form of what David Estlund decries as “utopophobia” is therefore an integral element of a proper professional ethic for political philosophers. The moderate utopophobe maintains that while devoting scarce time and resources to constructing utopias may sometimes be justifiable, it is never self-justifying. Utopianism is defensible only insofar as it can reasonably be expected to help inform or improve nonutopian political thinking. (shrink)

Because the goal of military medicine is salvaging the wounded who can return to duty, military medical ethics cannot easily defend devoting scarce resources to those so badly injured that they cannot return to duty. Instead, arguments turn to morale and political obligation to justify care for the seriously wounded. Neither argument is satisfactory. Care for the wounded is not necessary to maintain an army's morale. Nor is there any moral or logical connection between the right to health care (a (...) universal human right) and the duty to defend one's nation (a local political duty). Once badly wounded, soldiers enjoy the same right to medical care as any similarly ill or injured individual. National health care systems grasp this point and offer few additional health care benefits to veterans. In the United States, however, lack of universal health coverage skews the debate to focus on special entitlements for veterans without considering the health care rights that other citizens enjoy. (shrink)

Asymmetric conflict is changing the way that we practise and think about war. Torture, rendition, assassination, blackmail, extortion, direct attacks on civilians, and chemical weapons are all finding their way to the battlefield despite longstanding international prohibitions. This book offers a practical guide for policy makers, military officers, students, and others who ask such questions as: do guerillas deserve respect or long jail sentences? Are there grounds to torture guerillas for information or assassinate them on the battlefield? Is there room (...) for nonlethal weapons to subdue militants and safeguard the lives of noncombatants? Who are noncombatants in asymmetric war? What is the status of civilians who shelter and aid guerillas? And, do guerillas have any right to attack civilians, particularly those who aid and shelter members of the stronger army? If one side can expand the scope of civilian vulnerability, then why can't the other? (shrink)

Emmanuel Levinas conceives of our lives as fundamentally interpersonal and ethical, claiming that our responsibilities to one another should shape all of our actions. While many scholars believe that Levinas failed to develop a robust view of political ethics, Michael L. Morgan argues against understandings of Levinas’s thought that find him politically wanting or even antipolitical. Morgan examines Levinas’s ethical critique of the political as well as his Jewish writings—including those on Zionism and the founding of the Jewish state—which (...) are controversial reflections of Levinas’s political expression. Unlike others who dismiss Levinas as irrelevant or anarchical, Morgan is the first to give extensive treatment to Levinas as a serious social political thinker whose ethics must be understood in terms of its political implications. Morgan reveals Levinas’s political commitments to liberalism and democracy as well as his revolutionary conception of human life as deeply interconnected on philosophical, political, and religious grounds. (shrink)

This paper presents a framework for board self-evaluation based on a model grounded in the governance and team effectiveness literatures. It develops arguments for the creation of board effectiveness committees that are assigned responsibility for evaluating board construction, activities and outputs and the fit of these factors to environmental conditions. It presents the board effectiveness committee as an important element in the governance process.