We describe a set of two computer‐implemented models that solve physics problems in ways characteristic of more and less competent human solvers. The main features accounting for different competences are differences in strategy for selecting physics principles, and differences in the degree of automation in the process of applying a single principle. The models provide a good account of the order in which principles are applied by human solvers working problems in kinematics and dynamics. They also are sufficiently flexible to (...) allow easy extension to several related domains of physics problems. (shrink)

It is commonly assumed that personalization technologies used by Google for the purpose of tailoring search results for individual users create filter bubbles, which reinforce users’ political views. Surprisingly, empirical evidence for a personalization-induced filter bubble has not been forthcoming. Here, we investigate whether filter bubbles may result instead from a searcher’s choice of search queries. In the first experiment, participants rated the left-right leaning of 48 queries (search strings), 6 for each of 8 topics (abortion, benefits, climate change, sex (...) equality, immigration, nuclear family, Islam, and taxation). An independent sample of participants were then asked to select one of these queries for each of the 8 topics. With the exception of the topic of Islam, participants were significantly more likely to select a query corresponding to their own political leaning, compared to other queries, explaining between 12% and 39% of the variance. A second experiment investigated the effect of the political leaning of the same queries on the overall political leaning of Search Engine Result Pages (SERPs) in Google Search. The top six results of each SERP were rated collectively by a third group of participants, explaining 36.3% of the variance across all 48 search terms (p < .00001). That is, (1) participants in our experiments tended to select own-side search queries, and (2) using those queries tended to yield own-side search results when using the Google search engine. Our results are consistent with the notion of a self-imposed filter bubble in which query selection plays a salient role. (shrink)

Recent research has relied on trolley-type sacrificial moral dilemmas to study utilitarian versus nonutili- tarian modes of moral decision-making. This research has generated important insights into people’s attitudes toward instrumental harm—that is, the sacrifice of an individual to save a greater number. But this approach also has serious limitations. Most notably, it ignores the positive, altruistic core of utilitarianism, which is characterized by impartial concern for the well-being of everyone, whether near or far. Here, we develop, refine, and validate a (...) new scale—the Oxford Utilitarianism Scale—to dissociate individual differences in the ‘negative’ (permissive attitude toward instrumental harm) and ‘positive’ (impartial concern for the greater good) dimensions of utilitarian thinking as manifested in the general population. We show that these are two independent dimensions of proto-utilitarian tendencies in the lay population, each exhibiting a distinct psychological profile. Empathic concern, identification with the whole of humanity, and concern for future generations were positively associated with impartial beneficence but negatively associated with instrumental harm; and although instrumental harm was associated with subclinical psychopathy, impartial beneficence was associated with higher religiosity. Importantly, although these two dimensions were independent in the lay population, they were closely associated in a sample of moral philosophers. Acknowledging this dissociation between the instrumental harm and impartial beneficence components of utilitarian thinking in ordinary people can clarify existing debates about the nature of moral psychology and its relation to moral philosophy as well as generate fruitful avenues for further research. (shrink)

Background:Clinical investigation is a growing field employing increasing numbers of nurses. This has created a new specialty practice defined by aspects unique to nursing in a clinical research context: the objectives, setting, and nature of the nurse–participant relationship. The clinical research nurse role may give rise to feelings of ethical conflict between aspects of protocol implementation and the duty of patient advocacy, a primary nursing responsibility. Little is known about whether research nurses experience unique ethical challenges distinct from those experienced (...) by nurses in traditional patient-care settings.Research objectives:The purpose of the study was to describe the nature of ethical challenges experienced by clinical research nurses within the context of their practice.Research design:The study utilized a qualitative descriptive design with individual interviews.Participants and research context:Participating nurses self-identified as having experienced ethical challenges during screening. The majority were Caucasian, female, and worked in outpatient settings. Approximately 50% had > 10 years of research experience.Ethical considerations:The human subjects review board approved the study. Written informed consent was obtained.Findings:Predominant themes were revealed: the inability to provide a probable good, or/do no harm, and dual obligations. The following patterns and subthemes emerged: conflicted allegiances between protocol implementation, needs of the participant, desire to advance science, and tension between the nurse–patient therapeutic relationship versus the research relationship.Discussion:Participants described ethical challenges specific to the research role. The issues are central to the nurse–participant relationship, patient advocacy, the nurse’s role in implementing protocols, and/or advancing science.Conclusion:Ethical challenges related to the specialized role of clinical research nurses were identified. More research is warranted to fully understand their nature and frequency and to identify support systems for resolution. (shrink)

ABSTRACTFacial stimuli are widely used in behavioural and brain science research to investigate emotional facial processing. However, some studies have demonstrated that dynamic expressions elicit stronger emotional responses compared to static images. To address the need for more ecologically valid and powerful facial emotional stimuli, we created Dynamic FACES, a database of morphed videos from younger, middle-aged, and older adults displaying naturalistic emotional facial expressions. To assess adult age differences in emotion identification of dynamic stimuli and to provide normative ratings (...) for this modified set of stimuli, healthy adults categorised for each video the emotional expression displayed, rated the expression distinctiveness, estimated the age of the face model, and rated the naturalness of the expression. We found few age differences in emotion identification when using dynamic stimuli. On... (shrink)

Recently, moral deliberation within care institutions is gaining more attention in medical ethics. Ongoing dialogues about ethical issues are considered as a vehicle for quality improvement of health care practices. The rise of ethical conversation methods can be understood against the broader development within medical ethics in which interaction and dialogue are seen as alternatives for both theoretical or individual reflection on ethical questions. In other disciplines, intersubjectivity is also seen as a way to handle practical problems, and methodologies have (...) emerged to deal with dynamic processes of practice improvement. An example is responsive evaluation. In this article we investigate the relationship between moral deliberation and responsive evaluation, describe their common basis in dialogical ethics and pragmatic hermeneutics, and explore the relevance of both for improving the quality of care. The synergy between the approaches is illustrated by a case example in which both play a distinct and complementary role. It concerns the implementation of quality criteria for coercion in Dutch psychiatry. (shrink)

If action theory is to be relevant for the study of social phenomena, its scope has to be enlarged so as to include social structures. A hermeneutic theory of action, which draws on the thoughts of Gadamer, Merleau-Ponty, Ricoeur and Giddens, can meet this requirement. The hermeneutic concept of action, which emphasises the importance of tradition, style and rituals, demonstrates that action and structure presuppose and explain each other. The mutual relationship between action and structure is particularly clear in theories (...) of human development in the domain of psychology, psychotherapy and education. These theories can be used to construct a theory of social evolution, as has been developed by Habermas. By integrating structural, theoretical and critical points of view, a hermeneutic theory of action opens a perspective in which action theory and social theory might be successfully combined. (shrink)

Since its origin bioethics has been a specialized, academic discipline, focussing on moral issues, using a vast set of globalized principles and rational techniques to evaluate and guide healthcare practices. With the emergence of a plural society, the loss of faith in experts and authorities and the decline of overarching grand narratives and shared moralities, a new approach to bioethics is needed. This approach implies a shift from an external critique of practices towards embedded ethics and interactive practice improvement, and (...) from a legal defence of rights towards fostering interdependent practices of responsibility. This article describes these transitions within bioethics in relation to the broader societal and cultural dynamics within Western societies, and traces the implications for the methodologies and changing roles of the bioethicist. The bioethicist we foresee is not just a clever expert but also a relationally sensitive person who engages stakeholders in reciprocal dialogues about their practice of responsibility and helps to integrate various sorts of knowledge (embodied, experiential, visual, and cognitive-scientific). In order to illustrate this new approach, we present a case study. It concerns a project focusing on an innovation in elderly care, based on the participation of various stakeholders, especially older people themselves. (shrink)

Euthanasia and physician-assisted suicide are controversial issues in medical ethics and medical law. In the debate, several arguments against the moral acceptability and legal feasibility of active involvement of physicians in bringing about a patient’s death can be found.One argument refers back to the Ten Commandments: “Thou shall not kill”. Killing another human being is morally abject. According to the argument, this is certainly so for medical doctors, as can be seen in the Hippocratic Oath, which explicitly forbids abortion and (...) euthanasia. A less apodictic argument refers to the slippery slope: if euthanasia would be permitted, a downhill movement is set in motion. The end of this movement would be, on the one hand, that physicians will feel forced to assist people who ask for termination of life on whatever grounds. On the other hand, it might lead to a situation in which it becomes normal to kill people who are no longer useful for society.In the literature and in the public debate, there are also arguments in favour of euthanasia and physician-assisted suicide. One such argument invokes the right to die. According to this argument, decisions concerning life and death should be up to the individual who is concerned. In many countries, suicide is morally and legally accepted. If people are allowed to kill themselves, why should they be without rights when they are no longer able to perform the act themselves?In medical ethics and medical law, patient autonomy is a central pivot. Patients have the right to refuse treatment even if this leads to their death. Shouldn’t people also have the right to determine the moment of dying, if they are in a situation which is unbearable, and without prospect of improvement? Another argument focuses on the duty of the physician to alleviate pain and suffering. If there is no other option, the doctor, in fulfilling this duty, should be allowed to actively end the patient’s life. This argument is not based on autonomy, but on beneficence.The debate concerning euthanasia involves fundamentally different moral principles. This makes the debate interesting, if not central to medical ethics and medical law. Yet, the principles are normally presented in an abstract way. Discussants stick to very general ideas, which lack reference to specific social and historical conditions, and are not related to concrete experiences. To invoke the Ten Commandments, or plea for a right to die, implies the use of universal standards, which tend to be general and empty.From a philosophical perspective, this type of argumentation can be criticized. Following Aristotle, ethics should be based upon experience. Ethical knowledge requires participation in concrete practices. Central to ethics is a feeling for the concrete situation, which is always contingent and historical. From this perspective, it makes sense to consider how practitioners in specific situations deal with moral issues, for instance concerning euthanasia. What role do they give to notions such as autonomy and beneficence, how do they interpret them and apply them to the concrete situation?In this paper I will present the Dutch experience with euthanasia. I will focus upon the way in which during the past thirty years the arguments in favour of euthanasia have been developed, in interaction with euthanasia practice. I will show that patient autonomy has been a crucial pivot. Yet, the Dutch interpretation of autonomy is not purely liberal. It does not only involve rights, but also obligations. Next, I will make clear that the physician plays a central role, in that the moral and legal basis of euthanasia is a conflict of duties on the side of the physician.This brings in the issue of beneficence. Yet the Dutch interpretation of the duty to help is not simply paternalistic. In Dutch health care, the physician-patient relationship is based upon deliberation and mutual agreement. Therefore, my conclusion will be that the Dutch practice of euthanasia has a moral ground, which goes beyond the traditional opposition between autonomy and beneficence. (shrink)

Psychiatry presents a unique array of difficult ethical questions. However, a major challenge is to approach psychiatry in a way that does justice to the real ethical issues. Recently there has been a growing body of research in empirical psychiatric ethics, and an increased interest in how empirical and philosophical methods can be combined. Empirical Ethics in Psychiatry demonstrates how ethics can engage more closely with the reality of psychiatric practice and shows how empirical methodologies from the social sciences can (...) help foster this link. -/- The book is divided into two sections. In the first section there are discussions of the possibility of empirical ethics from a theoretical standpoint and an overview of the history of empirical medical ethics in general. The second, larger section is made up of chapters, discussing specific research projects in empirical psychiatric ethics. The contributors reflect on their choice of method: how and why they combine empirical and philosophical work, and how the two approaches relate to each other. The chapters in the second part thus have two purposes. The first is to present examples of empirical ethics in psychiatry; the second is to reflect on the way in which empirical research can support ethical analysis. -/- Empirical Ethics in Psychiatry is a unique contribution to bioethics and will be fascinating reading for all those working within the field, as well as mental health care professionals. (shrink)

Gillett and Huang (2013) rightly stress that societal aspects of psychopathology imply society has responsibilities toward psychopaths. In this commentary, I argue that society should not only take...

There are indications that simple reaction time might have slowed in Western countries, based on both cohort- and multi-study comparisons. A possible limitation of the latter method in particular is measurement error stemming from methods variance, which results from the fact that instruments and experimental conditions change over time and between studies. We therefore set out to measure the simple auditory reaction time (SRT) of 7,081 individuals (2,997 males and 4,084 females) born in Sweden 1959-1985 (subjects were aged between 27 (...) and 54 years at time of measurement). Depending on cut-offs and adjustment for ageing related slowing on SRT, the data suggest that SRT has increased between 3 and 16 ms in the 27 birth years covered in the present sample. The slowing is unlikely to be explained by attrition, as evaluated by comparing the general intelligence × birth-year interactions and standard deviations for both male participants and dropouts, utilizing military conscript cognitive ability data. The present result is consistent with previous studies employing alternative methods, and may result from several synergistic factors, such as possible recent micro-evolutionary trends favouring lower g in Sweden and the effects of industrially produced neurotoxic substances on peripheral nerve conduction velocity. (shrink)

On behalf of the Robert Wood Johnson Foundation, I want to thank the Public Health Law Association and the American Society of Law, Medicine & Ethics for your leadership and the work that both you and the Centers for Disease Control and Prevention have done to grow this field. RWJF is pleased to co-sponsor this conference.The music that opened this talk is a clip from Warren Zevon, who encouraged us musically to “send lawyers, guns and money.” Zevon was a singer/songwriter (...) and social critic whose songs often took a jaundiced, somewhat cynical point of view. Even so, I know that I am probably stretching his meaning when I think of this song. I see “lawyers, guns and money” as his take on the major drivers of how change happens in a society. (shrink)

On behalf of the Robert Wood Johnson Foundation, I want to thank the Public Health Law Association and the American Society of Law, Medicine & Ethics for your leadership and the work that both you and the Centers for Disease Control and Prevention have done to grow this field. RWJF is pleased to co-sponsor this conference.The music that opened this talk is a clip from Warren Zevon, who encouraged us musically to “send lawyers, guns and money.” Zevon was a singer/songwriter (...) and social critic whose songs often took a jaundiced, somewhat cynical point of view. Even so, I know that I am probably stretching his meaning when I think of this song. I see “lawyers, guns and money” as his take on the major drivers of how change happens in a society. (shrink)

In this article we address the social value of bioethics research and show how a participatory approach can achieve social impact for a wide audience of stakeholders, involving them in a process of joint moral learning. Participatory bioethics recognizes that research co-produced with stakeholders is more likely to have impact on healthcare practice. These approaches aim to engage multiple stakeholders and interested partners throughout the whole research process, including the framing of ideas and research questions, so that outcomes are tailored (...) to the interests and context, and the type of impact stakeholders envisage. There is an emphasis on realizing social change through the conduct of the research, and it is believed that the engagement of stakeholders in the research process will promote their intrinsic motivation to change their practice. Another distinctive feature of participatory bioethics research is that its central normative commitment is to reflection and dialogue, not to a particular substantive ethical approach. In reflection and dialogue there is an emphasis on inclusion and the co-production of knowledge. Furthermore, empirical and normative research are combined, and there is a deliberate attempt to give voice to otherwise marginalized positions. This provides a model of social impact which is relevant not only for bioethics research, but also for other areas of health care research. We will show the merits of a participatory approach to bioethics research with a case example. It concerns the reduction of coercion and in particular seclusion in Dutch mental healthcare. (shrink)

Gauge symmetries provide one of the most puzzling examples of the applicability of mathematics in physics. The presented work focuses on the role of analogical reasoning in the gauge argument, motivated by Mark Steiner’s claim that the application of the gauge principle relies on a Pythagorean analogy whose success undermines naturalist philosophy. In this paper, we present two different views concerning the analogy between gravity, electromagnetism, and nuclear interactions, each providing a different philosophical response to the problem of the applicability (...) of mathematics in the natural sciences. The first is based on an account of Weyl’s original work, which first gave rise to the gauge principle. Drawing on his later philosophical writings, we develop an idealist reading of the mathematical analogies in the gauge argument. On this view, mathematical analogies serve to ensure a conceptual harmony in our scientific account of nature. We further discuss the construction of Yang and Mills’s gauge theory in light of this idealist reading. The second account presents a naturalist alternative, formulated in terms of John Norton’s account of a material analogy, according to which the analogy succeeds in virtue of a physical similarity between the different interactions. This account is based on the methodological equivalence principle, a simple conceptual extension of the gauge principle that allows us to understand the relation between coordinate transformations and gravity as a manifestation of the same method. The physical similarity between the different cases is based on attributing the success of this method to the dependence of the coupling on relational physical quantities. We conclude by reflecting on the advantages and limits of the idealist, naturalist, and anthropocentric Pythagorean views, as three alternative ways to understand the puzzling relation between mathematics and physics. (shrink)

We present a set-theoretic model of the mental representation of classically quantified sentences (All P are Q, Some P are Q, Some P are not Q, and No P are Q). We take inclusion, exclusion, and their negations to be primitive concepts. We show that although these sentences are known to have a diagrammatic expres- sion (in the form of the Gergonne circles) that constitutes a semantic representation, these concepts can also be expressed syntactically in the form of algebraic formulas. (...) We hypothesized that the quantified sen- tences have an abstract underlying representation common to the formulas and their associated sets of dia- grams (models). We derived 9 predictions (3 semantic, 2 pragmatic, and 4 mixed) regarding people’s as- sessment of how well each of the 5 diagrams expresses the meaning of each of the quantified sentences. We report the results from 3 experiments using Gergonne’s (1817) circles or an adaptation of Leibniz (1903/ 1988) lines as external representations and show them to support the predictions. (shrink)

The Diagnostic and Statistical Manual of Mental Disorders contains the official diagnostic criteria for recognized mental illnesses. Some have asserted that DSM revisions have caused the boundaries of specific disorders to expand to include more behaviors, but no previous research has examined if such expansion is isolated or endemic. The current research consisted of an exploration of revisions to diagnostic criteria for 81 disorders. Each change between editions of the DSM was conceptually analyzed as making the disorder more exclusive or (...) more inclusive in terms of the number of people who could theoretically meet the criteria. Results indicated that 63% of disorders moved toward inclusivity, that each edition of the DSM moved toward inclusivity, and that most types of revisions increase inclusivity. (shrink)

Zeins are a group of alcohol‐soluble proteins that are synthesized in the endosperm of developing maize seeds. These proteins are encoded by a large number of genes located on several chromosomes; based upon the number of mutants that have been isolated, zein gene regulation is complex. Comparisons of gene flanking regions reveal conserved sequences that may be important for their regulation. Studies of transformed plant tissues support the assertion that cis‐acting elements with the 5′ flanking regions of zein genes are (...) required for accurate transcription. Although the genes are transcribed in transgenic tobacco and petunia plants, they are not properly regulated. This appears to be due to transcriptional effects rather than protein or mRNA instability. (shrink)

The stated purpose of the Diagnostic and Statistical Manual of Mental Disorders is to classify mental disorders. However, no tenable operational definition of mental disorder is offered in the manual. This leaves the possibility open that the behaviors labeled as disordered in the DSM are not members of a valid category. Attempts to define mental illness fall into the category of essentialist or relativist based, respectively, on the acceptance or denial of the existence of a defining biological attribute that all (...) mental disorders possess. However, the disorders in the DSM cannot be accounted for by either of these approaches making it unlikely that they represent a single valid concept. Simultaneous inclusion of brain illnesses and normal behaviors in the DSM are a likely explanation for the disparate nature of DSM disorders. (shrink)

Moral deliberation has been receiving more attention in nursing ethics. Several ethical conversation models have been developed. This article explores the feasibility of the so-called CARE (Considerations, Actions, Reasons, Experiences) model as a framework for moral deliberation in psychiatric nursing practice. This model was used in combination with narrative and dialogical approaches to foster discourse between various stakeholders about coercion in a closed admission clinic in a mental hospital in the Netherlands. The findings demonstrate that the CARE model provides a (...) substantial framework for structuring moral deliberations. Narratives and dialogue are useful tools for broadening issues in conversations, to engage various stakeholders (including patients), and to gain shared understandings. (shrink)

Discrete choice experiments—selecting the best and/or worst from a set of options—are increasingly used to provide more efficient and valid measurement of attitudes or preferences than conventional methods such as Likert scales. Discrete choice data have traditionally been analyzed with random utility models that have good measurement properties but provide limited insight into cognitive processes. We extend a well-established cognitive model, which has successfully explained both choices and response times for simple decision tasks, to complex, multi-attribute discrete choice data. The (...) fits, and parameters, of the extended model for two sets of choice data (involving patient preferences for dermatology appointments, and consumer attitudes toward mobile phones) agree with those of standard choice models. The extended model also accounts for choice and response time data in a perceptual judgment task designed in a manner analogous to best–worst discrete choice experiments. We conclude that several research fields might benefit from discrete choice experiments, and that the particular accumulator-based models of decision making used in response time research can also provide process-level instantiations for random utility models. (shrink)

It is not uncommon that nurses are unable to meet the normative expectations of chronically ill patients. The purpose of this article is to describe and illustrate Walker’s expressive-collaborative view of morality to interpret the normative expectations of two women with multiple sclerosis. Both women present themselves as autonomous persons who make their own choices, but who also have to rely on others for many aspects of their lives, for example, to find a new balance between work and social contacts (...) or to find work. We show that their narratives of identity, relationship and value differ from the narratives that others use to understand and identify them. Since identities, relationships and values give rise to normative expectations, in both cases there is a conflict between what the women expect of their caregivers and vice-versa. The narratives also show that two similar persons with multiple sclerosis may need very different care. This implies that nurses caring for such persons should listen carefully to their stories and reflect on their own perceptions of self. (shrink)

In this chapter we reflect on the relevance of peer review for assessing the quality of clinical ethics consultation. We contend that peer review in the narrative form as presented in this book provides an alternative to the formal clinical ethics consultation review procedures typically found in the clinical ethics literature. We elaborate on peer review as a reflection on clinical ethics consultation practice, the elements which a story should contain in order to provide a basis for peer review, and (...) the differences between the assessments of the peer reviewers. We argue that a narrative approach to assessing the quality of ethics consultation can be further developed by allowing all stakeholders who are involved in the clinical ethics practice to actively take part in the evaluation process, following a “responsive evaluation” approach. An example of this is creating a Community of Practice, the aim of which is to foster a joint learning process of all parties involved. At the end of this chapter, we draw conclusions on peer review as a dialogical tool for evaluating quality of clinical ethics consultation. (shrink)

A comparative fMRI study by Peeters et al. (2009) provided evidence that a specific sector of left inferior parietal lobule is devoted to tool use in humans, but not in monkeys. We propose that this area represents the neural substrate of the human capacity to understand tool use by using causal reasoning.