BackgroundThis research explores how the COVID-19 pandemic has changed the ways doctors make end-of-life decisions, particularly around Do Not Attempt Cardio-Pulmonary Resuscitation (DNACPR), treatment escalation and doctors’ views on the legalisation of euthanasia and physician-assisted suicide.MethodsThe research was conducted between May and August 2021, during which COVID-19 hospital cases were relatively low and pressures on NHS resources were near normal levels. Data were collected via online survey sent to doctors of all levels and specialties, who have worked in the NHS (...) during the pandemic.Results231 participants completed the survey. The research found that over half of participants reported making more patients DNACPR than prepandemic, and this was due, at least in part, to an increased focus on factors including patient age, Clinical Frailty Scores and resource limitations. In addition, a sizeable minority of participants reported that they now had a higher threshold for escalating patients to ITU and a lower threshold for palliating patients, with many attributing these changes to formative experiences gained during the pandemic. Finally, our study found that there has not been a statistically significant change in the views of clinicians on the legalisation of euthanasia or physician-assisted suicide since the start of the pandemic.ConclusionThe COVID-19 pandemic appears to have altered several aspects of end-of-life decision making, and many of these changes have remained even as COVID-19 hospital cases have declined. (shrink)

Humans can attribute beliefs to others. However, it is unknown to what extent this ability results from an innate biological endowment or from experience accrued through child development, particularly exposure to language describing others' mental states. We test the viability of the language exposure hypothesis by assessing whether models exposed to large quantities of human language display sensitivity to the implied knowledge states of characters in written passages. In pre‐registered analyses, we present a linguistic version of the False Belief Task (...) to both human participants and a large language model, GPT‐3. Both are sensitive to others' beliefs, but while the language model significantly exceeds chance behavior, it does not perform as well as the humans nor does it explain the full extent of their behavior—despite being exposed to more language than a human would in a lifetime. This suggests that while statistical learning from language exposure may in part explain how humans develop the ability to reason about the mental states of others, other mechanisms are also responsible. (shrink)

Abstract Objective Intuitive inquiry meditation is a unique form of Buddhist Zen/Chan practice in which individuals actively and intuitively utilize the cognitive functions to cultivate doubt and explore the concept of the self. This event-related potential (ERP) study aimed to investigate the neural correlates by which long-term practice of intuitive inquiry meditation induces flexibility in self-schema processing, highlighting the role of doubt and belief processes in this exploration. Methods Twenty experienced and eighteen beginner meditators in intuitive inquiry meditation were recruited (...) for this ERP study. The interactions of doubt and belief processes with concepts of the self and Buddha were investigated. A 128-channel electroencephalography (EEG) system was used to collect EEG data. The ERP data were processed and analyzed using EEGLAB. Results The data showed a double dissociation between beginners and experienced meditators (monks) in the concepts of the self and Buddha: intuitive inquiry meditation reduced the brain activity of beginners when viewing Buddha image but not when viewing a picture of themselves. However, in experienced meditators, intuitive inquiry meditation reduced brain activity when they viewed images of themselves but not when they viewed Buddha image. Further event-related spectral perturbation (ERSP) analysis revealed that experienced meditators had a greater theta spectral power and higher intertrial coherence (ITC), indicating that they could more flexibly modulate ongoing cognitive processes than beginner meditators. Conclusion Intuitive inquiry meditation could help beginner meditators detach from the concept of Buddha but not from that of the self. However, in experienced meditators, the opposite was true. ERSP analysis showed that only experienced meditators exhibited significant alterations in brain activity dynamics during intuitive inquiry meditation, which might enable these practitioners to become spontaneously detached from the concept of the self. These findings revealed the neural mechanism by which long-term practice of intuitive inquiry meditation can influence the doubting process and its effect on self-schema processing. (shrink)

This article argues that Sartre's distinction in What Is Literature? between prose and poetry should be understood in the light of his earlier distinction in The Imaginary between two kinds of meaning. Sartre argues against the “Cartesian picture” of consciousness in The Imaginary, specifically concerning our experience of images. Not only is a mental image not an “inner object” mediating between consciousness and the world, even a picture drawn on paper should not be understood as an object standing between the (...) viewer and what this picture represents. Our experience, Sartre argues, is that of seeing things in a picture rather than seeing through it, such that the meaning of pictures and images in general is embodied in them and cannot be separated from them. He then goes on to contrast this kind of embodied meaning with a kind of meaning that can be completely grasped independently of its expression and identify the two with painting and language respectively. It is for this reason, this article argues, that Sartre later sees poetry as a deviation from language's proper function. This rigid distinction is maintained by Sartre until the end of his career, and the change that some commentators found in him are its outcome rather than a revolt against it. In contrast, Merleau-Ponty has demonstrated more convincingly that sense and signification are both essential aspects of linguistic meaning, and their relation is much more dynamic and complimentary than Sartre would have allowed. (shrink)

This panel study assessed changes in ethical ideology and beliefs about the societal function of media over the course of undergraduate communication education in Singapore. First, students' agreement with the ethical principles of truth telling, independence, and accountability increased. Second, change in agreement with the ethical principle of minimizing harm was negatively related to change in justification of contentious newsgathering methods. Third, belief that the media should function as a watchdog increased and that it should serve national development decreased. Change (...) in these variables was inversely correlated. We relate these findings to global contexts and make recommendations for curriculum development. (shrink)

This paper brings the intellectual tools of cognitive science to bear on resolving the “paradox of the active user” [Interfacing Thought: Cognitive Aspects of Human–Computer Interaction, Cambridge, MIT Press, MA, USA]—the persistent use of inefficient procedures in interactive tasks by experienced or even expert users when demonstrably more efficient procedures exist. The goal of this paper is to understand the roots of this paradox by finding regularities in these inefficient procedures. We examine three very different data sets. For each data (...) set, we first satisfy ourselves that the preferred procedures used by some subjects are indeed less efficient than the recommended procedures. We then amass evidence, for each set, and conclude that when a preferred procedure is used instead of a more efficient, recommended procedure, the preferred procedure tends to have two major characteristics: (1) the preferred procedure is a well‐practiced, generic procedure that is applicable either within the same task environment in different contexts or across different task environments, and (2) the preferred procedure is composed of interactive components that bring fast, incremental feedback on the external problem states. The support amassed for these characteristics leads to a new understanding of the paradox. In interactive tasks, people are biased towards the use of general procedures that start with interactive actions. These actions require much less cognitive effort as each action results in an immediate change to the external display that, in turn, cues the next action. Unfortunately for the users, the bias to use interactive unit tasks leads to a path that requires more effort in the long run. Our data suggest that interactive behavior is composed of a series of distributed choices; that is, people seldom make a once‐and‐for‐all decision on procedures. This series of biased selection of interactive unit tasks often leads to a stable suboptimal level of performance. (shrink)

Abstract:This paper examines the idea of xing 性 in Guo Xiang's Commentary on the Zhuangzi in order to show the distinctiveness of Guo's thought. I argue that, for Guo, xing is individualized and subject to no external standard, not even to the "normal" condition proposed by the primitivists in the Zhuangzi. Regarding the debate about xing's changeability, I argue that one's xing can change over time, even by learning, although this change is constrained within certain boundaries. The individualization of xing (...) and the need of holding to one's boundaries serve to explain the emergence of social norms, which can and should be established in a way that respects different xing. This dynamic between individuality and social organization contributes to our thinking about fundamental tensions in human life. (shrink)

Environmental Ethics and Behavioural Change takes a practical approach to environmental ethics with a focus on its transformative potential for students, professionals, policy makers, activists, and concerned citizens. Proposed solutions to issues such as climate change, resource depletion and accelerating extinctions have included technological fixes, national and international regulation and social marketing. This volume examines the ethical features of a range of communication strategies and technological, political and economic methods for promoting ecologically responsible practice in the face of these crises. (...) The central concern of the book is environmental behaviour change: inspiring, informing and catalysing reflective change in the reader, and in their ability to influence others. By making clear the forms of environmental ethics that exist, and what each implies in terms of individual and social change, the reader will be better able to formulate, commit to, articulate and promote a coherent position on how to understand and engage with environmental issues. (shrink)

Walter Benjamin’s writings on fashion need to be read as engagements with the problem of historical time and a related politics of time. The aim of this article is to develop this position. Its point of orientation is Thesis XIV from the Theses on the Philosophy of History. What is argued is that close attention to the temporality of change and novelty within fashion may allow an insight into a conception of interruption and the ‘new’, however, it cannot yield (...) a politics. Moreover, the link between fashion and utopianism allows for the development of a critique of the utopian dimension of Benjamin’s thought. The basis of that critique is the inherent politics of time in his own writings. (shrink)

A dynamic context model of interactive behavior was developed to explain results from two experiments that tested the effects of interaction costs on encoding strategies, cognitive representations, and response selection processes in a decision-making and a judgment task. The model assumes that the dynamic context defined by the mixes of internal and external representations and processes are sensitive to the interaction cost imposed by the task environment. The model predicts that changes in the dynamic context may lead to systematic biases (...) in cognitive representations and processes that eventually influence decision-making and judgment outcomes. Consistent with the predictions by the model, results from the experiments showed that as interaction costs increased, encoding strategies and cognitive representations shifted from perception-based to memory-based. Memory-based comparisons of the stimuli enhanced the similarity and dominance effects, and led to stronger systematic biases in response outcomes in a choice task. However, in a judgment task, memory-based representations enhanced only the dominance effects. Results suggested that systematic response biases in the dominance context were caused by biases in the cognitive representations of the stimuli, but response biases in the similarity context were caused by biases in the comparison process induced by the choice task. Results suggest that changes in interaction costs not only change whether information was assessed from the external world or from memory but also introduce systematic biases in the cognitive representation of the information, which act as biased inputs to the subsequent decision-making and judgment processes. Results are consistent with the idea of interactive cognition, which proposes that representations and processes are contingent on the dynamic context defined by the information flow between the external task environment and internal cognition. (shrink)

We propose a ‘Moral Imagination’ methodology to facilitate a culture of responsible innovation for engineering and product teams in technology companies. Our approach has been operationalized over the past two years at Google, where we have conducted over 50 workshops with teams from across the organization. We argue that our approach is a crucial complement to existing formal and informal initiatives for fostering a culture of ethical awareness, deliberation, and decision-making in technology design such as company principles, ethics and privacy (...) review procedures, and compliance controls. We characterize some distinctive benefits of our methodology for the technology sector in particular. (shrink)

This paper analyzes the impacts of index inclusions and exclusions on corporate sustainable firms by studying a sample of US stocks that are added to or deleted from the Dow Jones Sustainability World Index over the period 2002-2008. The impacts are measured in terms of stock return, risk and liquidity. We cannot find any strong evidence that announcement per se has any significant impact on stock return and risk. However, on the day of change, index inclusion (exclusion) stocks experience a (...) significant but temporary increase (decrease) in stock return. Liquidity deteriorates after the announcement day and bounces back significantly near the day of change. Systematic risk shows little change after announcements. But, idiosyncratic risk is higher after announcements. The overall results support Harris and Eitan's (The Journal of Finance 41(4), 815-829, 1986) price pressure hypothesis, which posits that event announcement does not carry information and any shift in demand (and hence the corresponding price change and liquidity change) is temporary. (shrink)

For the last 20 years, there has been lively debate about which principle of distributive and corrective justice should be used in dividing, among the various countries, the costs associated wit...

Daylight is the primary cue used by circadian clocks to entrain to the day/night cycle so as to synchronize physiological processes with periodic environmental changes induced by Earth rotation.However, the temporal daylight pattern is not the same every day due to erratic weather fluctuations or regular seasonal changes. Then, how do circadian clocks operate properly in varying weather and seasons? In this paper, we discuss the strategy unveiled by recent studies of the circadian clock of Ostreococcus tauri, the smallest free‐living (...) eukaryotic organism. It combines mechanisms controlling light inputs and clock sensitivity, shaping both the dynamics of the core circadian oscillator and its forcing by light so as to ensure stable and precise synchronization in all weather and seasons.Editor's suggested further reading in BioEssays: Another place, another timer: Marine species and the rhythms of life Abstract. (shrink)

The 2013 Ebola virus outbreak in West Africa, as of writing, is declining in reported human cases and mortalities. The resulting devastation caused highlights how health systems, in particular in West Africa, and in terms of global pandemic planning, are ill prepared to react to zoonotic pathogens. In this paper we propose One Health as a strategy to prevent zoonotic outbreaks as a shared goal: that human and Great Ape vaccine trials could benefit both species. Only recently have two phase (...) 2/3 Ebola human vaccine trials been started in West Africa. This paper argues for a conceptual change in pandemic preparedness. We first discuss the ethics of One Health. Next, we focus on the current Ebola outbreak and defines its victims. Third, we present the notion of a ‘shared benefit’ approach, grounded in One Health, and argue for the vaccination of wild apes in order to protect both apes and humans. We believe that a creation of such inter-species immunity is an exemplar of One Health, and that it is worth pursuing as a coextensive public health approach. (shrink)

Patients who are subject to compulsory care constitute a substantial proportion of the work-load of mental health professionals, particularly psychiatric nurses. This article examines the traditional ‘beneficence-autonomy’ approach to ethics in compulsory psychiatric care and evaluates it against the reality of daily practice. Risk to the public has always been an important but often unacknowledged consideration. Inequalities exist among ethnic and socio-economic groups and there is a lack of agreement on what constitutes mental disorder. Two major changes in compulsory psychiatric (...) care - community orders and care for patients with untreatable severe personality disorders - further challenge the traditional ethical approach. There are also important human rights implications. The simple patient-health professional relationship no longer provides an adequate framework for mental health professionals on which to base their ethical decisions. The public and organizations may have different perspectives and their interests are becoming increasingly important. Mental health professionals, particularly psychiatric nurses, may face ethical dilemmas because of these different perspectives. (shrink)

In the past decades, researchers of Cantonese treated the frequently used sentence-final particles (hereafter SFPs) wo3 (?, mid level tone) and bo3 (?, mid level tone) as variant forms, the former being the result of sound change from the latter (Kwok 1984, Luke 1990, Li 1995, Fang 2003). However, Leung (2010) argues that wo3 in the late 20th century performs the functions of realization, reminder, hearsay and contrast while the main function of bo3 is only to show contrast, thus they (...) are not entirely interchangeable. To explore the development of the two particles from the historical prospective, this paper attempts to examine them in Hong Kong Cantonese diachronically based on the spoken data of old Cantonese movies of 1940s and 1970s. (shrink)

In standard decision theory, the probability function ought to be updated in light of evidence, but the utility function generally stays fixed. However, there is nothing in the formal theory that prevents one from instead updating the utility function, while keeping the probability function fixed. Moreover, there are good arguments for updating the utilities and not just the probabilities. Hence, the first puzzle is whether there is anything that justifies updating beliefs, but not desires, in light of evidence. The paper (...) argues that there is not, but that this raises a second puzzle. (shrink)

Walter Benjamin’s writings on fashion need to be read as engagements with the problem of historical time and a related politics of time. The aim of this article is to develop this position. Its point of orientation is Thesis XIV from the Theses on the Philosophy of History. What is argued is that close attention to the temporality of change and novelty within fashion may allow an insight into a conception of interruption and the ‘new’, however, it cannot yield (...) a politics. Moreover, the link between fashion and utopianism allows for the development of a critique of the utopian dimension of Benjamin’s thought. The basis of that critique is the inherent politics of time in his own writings. (shrink)

I have taken an experimental approach to this question. Freely voluntary acts are preceded by a specific electrical change in the brain that begins 550 ms before the act. Human subjects became aware of intention to act 350-400 ms after RP starts, but 200 ms. before the motor act. The volitional process is therefore initiated unconsciously. But the conscious function could still control the outcome; it can veto the act. Free will is therefore not excluded. These findings put constraints on (...) views of how free will may operate; it would not initiate a voluntary act but it could control performance of the act. The findings also affect views of guilt and responsibility. But the deeper question still remains: Are freely voluntary acts subject to macro-deterministic laws or can they appear without such constraints, non-determined by natural laws and ‘truly free'? I shall present an experimentalist view about these fundamental philosophical opposites. (shrink)

In the fifth century BCE, Melissus of Samos developed wildly counterintuitive claims against plurality, change, and the reliability of the senses. This book provides a reconstruction of the preserved textual evidence for his philosophy, along with an interpretation of the form and content of each of his arguments. A close examination of his thought reveals an extraordinary clarity and unity in his method and gives us a unique perspective on how philosophy developed in the fifth century, and how Melissus came (...) to be the most prominent representative of what we now call Eleaticism, the monistic philosophy inaugurated by Parmenides. The rich intellectual climate of Ionian enquiry in which Melissus worked is explored and brought to bear on central questions of the interpretation of his fragments. This volume will appeal to students and scholars of early Greek philosophy, and also those working on historical and medical texts. (shrink)

The last millennium saw rapid change, spreading globalization, and shifting populations. These have posed moral, ethical, and social dilemmas that have challenged the very foundations of our beliefs and radically changed our way of life. In this volume, some of the world's greatest thinkers in philosophy, music, religion, and the arts share their insights on the future shape of human civilization. How can old cultural legacies fit new contexts? Can there be a universalist values coexist with local differentiation? Are literature (...) and music still relevant in a world where technology is dominant? By discussing these important issues in an interdisciplinary framework, these scholars have provided a provisional blueprint for our new society. (shrink)

I have taken an experimental approach to this question. Freely voluntary acts are preceded by a specific electrical change in the brain that begins 550 ms before the act. Human subjects became aware of intention to act 350-400 ms after RP starts, but 200 ms. before the motor act. The volitional process is therefore initiated unconsciously. But the conscious function could still control the outcome; it can veto the act. Free will is therefore not excluded. These findings put constraints on (...) views of how free will may operate; it would not initiate a voluntary act but it could control performance of the act. The findings also affect views of guilt and responsibility. But the deeper question still remains: Are freely voluntary acts subject to macro-deterministic laws or can they appear without such constraints, non-determined by natural laws and ‘truly free'? I shall present an experimentalist view about these fundamental philosophical opposites. (shrink)

Can SRI be a means to make investors both virtuous and prosperous? This paper argues that there can be significant tensions between these goals, and that SRI (and indeed all investment) should not allow the pursuit of maximizing investment returns to prevail over an ethical agenda of promoting social and economic justice and environmental protection. The discourse on SRI has changed dramatically in recent years to the point where its capacity to promote social emancipation, sustainable development and other ethical goals (...) is in jeopardy. Historically, SRI was a boutique sector of the market dominated by religious-based investors who sought to invest in accordance with the tenets of their faith. From the early 1970s, the aspirations of the SRI movement morphed significantly in the context of the divestment campaign against South Africa's apartheid regime. No longer were social investors satisfied with just avoiding profit from immoral activities; instead, they also sought to change the behavior of others. Business case SRI is a problematic SRI benchmark for several reasons: often there is a countervailing business case for financing irresponsible activities, given the failure of markets to capture all social and environmental externalities; secondly, even if investors care about such concerns, there may be no means of financially quantifying their significance for investment purposes; and, thirdly, even if such factors can be financially quantified, they may be deemed to be such long-term financial costs or benefits that they become discounted and ignored. The ethics case for SRI and ethical business practices more generally takes the view that both investors and the companies they fund have ethical responsibilities that trump the pursuit of profit maximization. Ethical investment should be grounded on this foundation. However, it may not be enough. To keep ethical investment ethical will likely require institutionalizing new norms and governance standards, in such domains as reforming fiduciary duties and the internal governance of financial organizations. SRI's own codes of conduct including the UNPRI have yet to demonstrate the robustness to move the financial community beyond business as usual. (shrink)

Historically, the dynamic between philosophy of artificial intelligence and its practical application has been essential for the development of both, and thus the encounter between theory of AI and architectural/urban theory should be a site of considerable productivity. However, in many ways, it is not. This is due to two primary factors, one arising from each side of this encounter. First, legacies of overly-anthropomorphic models of AI permeate design discourses, where issues of how well AI can be constrained to social (...) issues of philosophy of mind exclude more foundational and cross-cultural questions about artificial intelligence as material process in the physical world that could inform new philosophical insights. Concurrently, the mobilization of investment in “Smart Cities” discourses dominates the space of application of AI at urban scale in ways that prematurely fixes solutions in the skeuomorphic image of architectural and urban conventions. To break this impasse, we held a series of think-tanks, workshops, and design charettes that brought together leading figures in philosophy of artificial intelligence, urban design, and commercial AI platforms. The goal was to re-think from first principles how alternative philosophical models of AI as a distributed, discontinuous, landscape-scale technology in a direct encounter with the applications in contexts of ecological sensing, automation’s impact on urban form, and issues of algorithmic governance. The design brief for this research establishes a generative framework for conceiving how embedded machine sensing and intelligence is already changing urban form and could change it in the future. The framework focuses on issues of urban zoning and architectural programming, data modeling and governance, platform cognition and design, and how these inform shifts in dynamics of public and private institutions. (shrink)

Dialectical thinking refers to a constellation of beliefs that consist of expectation of change, tolerance of contradiction, and holism. The current research explored whether dialectical thinking would affect people’s anticipation of climate change, which has been propagated globally. Study 1 compared the responses between Chinese participants, representing people from cultures that promote dialectical thinking, and North American participants, representing people from cultures that promote linear thinking. The results showed that Chinese participants demonstrated a stronger non-linear pattern regarding the anticipation of (...) climate change as compared with American participants, in which Chinese participants were more likely to anticipate a stable trend but less likely to anticipate an increasing trend for global warming. Study 2 with a manipulation of dialectical and linear thinking was conducted and provided some generally supportive evidence for the causal relation between dialectical beliefs and the anticipation of climate change. Implications for cross-cultural environmental research and international climate change education programs were discussed. (shrink)

This essay is a reading of Aristotle’s account in Meteorology I.14 of changes in local environmental conditions and its significance for Aristotle’s understanding of nature and change more generally. That account shows how local environments are complex bodies, and so change through habituation: the sedimentation of patterns of activity through repeated activity/change. In turn, this shows how the regularity of what is by nature is a matter of the relative stability of habits in the face of unceasing generation and destruction. (...) Strikingly, Aristotle then turns to the consequences of that account for human beings’ ability to comprehend changes in the environmental conditions of their activities. (shrink)

The objective of this study is to evaluate if use of a patient decision aid, when choosing between a repeat cesarean or a trial of labor after a cesarean, reduces medical liability exposure. The authors conclude that use of a PDA conferred liability protection when potential jurors were presented with a hypothetical malpractice claim against an obstetrician following a TOLAC.

Screening for prostate cancer with the prostate-specific antigen blood test is controversial, as evidence to date has not demonstrated such screening does more good than harm. While the potential benefit of PSA screening on reducing prostate cancer mortality has not been documented in randomized trials, many risks of PSA screening have been well documented. These risks include a substantially higher risk of a prostate cancer diagnosis over a screenee’s lifetime, false-positive and false-negative test results, possible complications from biopsies done in (...) response to suspicious test results, and substantial risks of side effects from subsequent prostate cancer treatments. Nevertheless, PSA screening is widespread in the United States, and many physicians in a national survey reported supporting routine PSA screening as well as getting PSA tests themselves, despite the lack of evidence. (shrink)

There is mounting evidence that language comprehension involves the activation of mental imagery of the content of utterances (Barsalou, 1999;Bergen, Chang, & Narayan, 2004;Bergen, Narayan, & Feldman, 2003;Narayan, Bergen, & Weinberg, 2004;Richardson, Spivey, McRae, & Barsalou, 2003;Stanfield & Zwaan, 2001;Zwaan, Stanfield, & Yaxley, 2002). This imagery can have motor or perceptual content. Three main questions about the process remain under‐explored, however. First, are lexical associations with perception or motion sufficient to yield mental simulation, or is the integration of lexical (...) semantics into larger structures, like sentences, necessary? Second, what linguistic elements (e.g., verbs, nouns, etc.) trigger mental simulations? Third, how detailed are the visual simulations that are performed? A series of behavioral experiments address these questions, using a visual object categorization task to investigate whether up‐ or down‐related language selectively interferes with visual processing in the same part of the visual field (followingRichardson et al., 2003). The results demonstrate that either subject nouns or main verbs can trigger visual imagery, but only when used in literal sentences about real space—metaphorical language does not yield significant effects—which implies that it is the comprehension of the sentence as a whole and not simply lexical associations that yields imagery effects. These studies also show that the evoked imagery contains detail as to the part of the visual field where the described scene would take place. (shrink)

The ability to learn the direction of causal relations is critical for understanding and acting in the world. We investigated how children learn causal directionality in situations in which the states of variables are temporally dependent (i.e., autocorrelated). In Experiment 1, children learned about causal direction by comparing the states of one variable before versus after an intervention on another variable. In Experiment 2, children reliably inferred causal directionality merely from observing how two variables change over time; they interpreted Y (...) changing without a change in X as evidence that Y does not influence X. Both of these strategies make sense if one believes the variables to be temporally dependent. We discuss the implications of these results for interpreting previous findings. More broadly, given that many real-world environments are characterized by temporal dependency, these results suggest strategies that children may use to learn the causal structure of their environments. (shrink)

We conducted focus groups with 47 potential jurors who were presented with diferent scenarios in a hypothetical malpractice case involving failure to order a PSA test. Better documentation that a patient made an informed decision to decline a PSA test appeared to provide more medical-legal protection for physicians, especially with the use of a decision aid.

Community Partnered Participatory Research is grounded in the ethical principle of respect for persons participating in the research enterprise. The critical importance of respect for person...

Suppositions can be introduced in either the indicative or subjunctive mood. The introduction of either type of supposition initiates judgments that may be either qualitative, binary judgments about whether a given proposition is acceptable or quantitative, numerical ones about how acceptable it is. As such, accounts of qualitative/quantitative judgment under indicative/subjunctive supposition have been developed in the literature. We explore these four different types of theories by systematically explicating the relationships canonical representatives of each. Our representative qualitative accounts of indicative (...) and subjunctive supposition are based on the belief change operations provided by AGM revision and KM update respectively; our representative quantitative ones are offered by conditionalization and imaging. This choice is motivated by the familiar approach of understanding supposition as `provisional belief revision' wherein one temporarily treats the supposition as true and forms judgments by making appropriate changes to their other opinions. To compare the numerical judgments recommended by the quantitative theories with the binary ones recommended by the qualitative accounts, we rely on a suitably adapted version of the Lockean thesis. Ultimately, we establish a number of new results that we interpret as vindicating the often-repeated claim that conditionalization is a probabilistic version of revision, while imaging is a probabilistic version of update. (shrink)

A large body of research links testosterone and cortisol to male-male competition. Yet, little work has explored acute steroid hormone responses to coalitional, physical competition during middle childhood. Here, we investigate testosterone, dehydroepiandrosterone, androstenedione, and cortisol release among ethnically Chinese boys in Hong Kong, aged 8–11 years, during a soccer match and an intrasquad soccer scrimmage, with 63 participants competing in both treatments. The soccer match and intrasquad soccer scrimmage represented out-group and in-group treatments, respectively. Results revealed that testosterone showed (...) no measurable change. DHEA increased during both treatments in the majority of participants and the degree of change had no relation to independent variables or covariate measures. Most boys experienced androstenedione increases during match play, but no significant differences during the intrasquad soccer scrimmage competitions. The magnitude of change differed significantly between treatments and was positively associated with age. These latter findings suggest boys’ androstenedione responses may be sensitive to competitor type. For most subjects, cortisol significantly increased during match play, decreased during the intrasquad soccer scrimmage, and differed significantly between treatments, suggesting each treatment promoted a different psychological state among competitors. Cortisol/DHEA molar ratio decreased during the intrasquad scrimmage, suggestive of a more relaxed mental state. These data shed new light on potential proximate mechanisms associated with coalitional competition among prepubescent boys, with relevance to adrenarche and life history theory. (shrink)

This article is currently available as a free download on ingentaconnect.

Classical accounts of intertheoretic reduction involve two pieces: first, the new terms of the higher-level theory must be definable from the terms of the lower-level theory, and second, the claims of the higher-level theory must be deducible from the lower-level theory along with these definitions. The status of each of these pieces becomes controversial when the alleged reduction involves an infinite limit, as in statistical mechanics. Can one define features of or deduce the behavior of an infinite idealized system from (...) a theory describing only finite systems? In this paper, I change the subject in order to consider the motivations behind the definability and deducibility requirements. The classical accounts of intertheoretic reduction are appealing because when the definability and deducibility requirements are satisfied there is a sense in which the reduced theory is forced upon us by the reducing theory and the reduced theory contains no more information or structure than the reducing theory. I will show that, likewise, there is a precise sense in which in statistical mechanics the properties of infinite limiting systems are forced upon us by the properties of finite systems, and the properties of infinite systems contain no information beyond the properties of finite systems. (shrink)