A central theme of the unified framework for addiction advanced by Redish et al. is that there exists a common value or incentive process controlling Pavlovian and instrumental conditioning. Here we briefly review evidence from a variety of sources demonstrating that these incentive processes are in fact independent. Clearly the influence of Pavlovian predictors and goal values on choice offer distinct potential targets for pathologies of decision-making.

An award-wining biologist takes us on the dramatic expeditions that unearthed the history of life on our planet. Just 150 years ago,most of our world was an unexplored wilderness.Our sense of how old it was? Vague and vastly off the mark. And our sense of our own species’ history? A set of fantastic myths and fairy tales. Fossils had been known for millennia, but they were seen as the bones of dragons and other imagined creatures. In the tradition of The (...) Microbe Hunters and Gods, Graves, and Scholars, Sean Carroll’s Remarkable Creatures celebrates the pioneers who replaced our fancies with the even more amazing true story of how our world evolved. Carroll recounts the most important discoveries in two centuries of national history — from Darwin’s trip around the world to CharlesWalcott’s discovery of pre-Cambrian life in the Grand Canyon; from Louis and Mary Leakey’s investigation of our deepest past in East Africa to the trailblazers in modern laboratories who have located a time clock in our DNA. Join him in a rousing voyage of discovery, from the epic journeys of pioneering naturalists to the breakthroughs making headlines today. (shrink)

One of the twentieth century's most respected political philosophers presents a controversial perspective on the political ideas and intellectual legacy of Edmund Burke. This new edition includes an introduction by Frank Cunningham, placing the book in the broader context of Macpherson's work.

In his final book, one of the giants of twentieth-century political philosophy returns to his key themes of state, class, and property to consider such contemporary questions as economic justice, human rights, and the nature of industrial democracy. This new edition includes an introduction by Frank Cunningham, placing the book in the broader context of Macpherson's work.

The appendages of the adult fruit fly and other insects and Arthropods develop from secondary embryonic fields that form after the primary anterior/posterior and dorsal/ventral axes of the embryo have been determined. In Drosophila, the position and fate of the different fields formed within each segment are determined by genes acting along both embryonic axes, within individual segments, and within specific fields. Since the major architectural differences between most Arthropod classes and orders involve variations in the number, type and morphology (...) of body appendages, the elucidation of the embryology and molecular genetics of the origin and patterning of insect limb fields may help to facilitate an understanding of both the mechanism of appendage formation and some of the major steps in the morphological evolution of the Arthropods. In this review, we will discuss recent studies that have advanced our understanding of both the origin and patterning of Drosophila leg and wing secondary fields. These results provide fresh insights into potentially general mechanisms of how body parts develop and evolve. (shrink)

Evolutionary changes in traits that affect both ecological divergence and mating signals could lead to reproductive isolation and the formation of new species. Insect cuticular hydrocarbons (CHCs) are potential examples of such dual traits. They form a waxy layer on the cuticle of the insect to maintain water balance and prevent desiccation, while also acting as signaling molecules in mate recognition and chemical communication. Because the synthesis of these hydrocarbons in insect oenocytes occurs through a common biochemical pathway, natural or (...) sexual selection on one role may affect the other. In this review, we explore how ecological divergence in insect CHCs can lead to divergence in mating signals and reproductive isolation. We suggest that the evolution of insect CHCs may be ripe models for understanding ecological speciation. (shrink)

After revelations of participation by psychiatrists and psychologists in interrogation of prisoners at Guantánamo Bay and Central Intelligence Agency secret detention centers, the American Psychiatric Association and the American Psychological Association adopted Position Statements absolutely prohibiting their members from participating in torture under any and all circumstances, and, to a limited degree, forbidding involvement in interrogations. Some interrogations utilize very aggressive techniques determined to be torture by many nations and organizations throughout the world. This paper explains why psychiatrists and psychologists (...) involved in coercive interrogations violate the Geneva Conventions and the laws of the United States. Whether done with ignorance of professional ethical obligations or not, these psychiatrists and psychologists have crossed an ethical barrier that may best be averted from re-occurring by teaching medical students and residents in all medical specialties about the ethics principles stemming from the 1946–1947 Nuremberg trials and the Geneva Conventions, together with the Ethics Codes of the World Medical Association and the American Medical Association; and, with regard to psychiatric residents and psychological trainees, by the teaching about The Principles of Medical Ethics With Annotations Especially Applicable to Psychiatry and the Ethical Principles of Psychologists and Code of Conduct, respectively. In this way, all physicians and psychologists will clearly understand that they have an absolute moral obligation to "First, do no harm" to the human beings they professionally encounter. (shrink)

A common finding in the study of emotion and decision making is the tendency for fear and anxiety to decrease risk taking. The current meta-analysis summarises the strength and variability of this...

In this study, we examined students' attitudes toward cheating and whether they would report instances of cheating they witnessed. Data were collected from three educational institutions in Singapore. A total of 518 students participated in the study. Findings suggest that students perceived cheating behaviors involving exam-related situations to be serious, whereas plagiarism was rated as less serious. Cheating in the form of not contributing one's fair share in a group project was also perceived as a serious form of academic misconduct, (...) although a majority of the students admitted having engaged in such behavior. With regard to the prevalence of academic cheating, our findings suggest that students are morally ambivalent about academic cheating and are rather tolerant of dishonesty among their peers. On the issue of whether cheating behaviors should be reported, our findings revealed that a majority of students chose to take the expedient measure of ignoring the problem rather than to blow the whistle on their peers. Implications of our findings are discussed. (shrink)

In addition to facing the known competitors in the formal economy, entrepreneurs must also be concerned with rivalry emanating from the informal economy. The informal economy is characterized by actions outside the normal scope of commerce, such as unsanctioned payments and gift-giving, as means of influencing competition. Scholars and policy makers alike have an interest in mitigating the impacts of such informal activity in that it might present an obstacle for legitimate commerce. Received theory suggests that country institutions can enable (...) and constrain productive activity, and, in doing so, influence competitive obstacles in a country. Leveraging 13,670 responses from entrepreneurs distributed across 59 countries, we provide evidence that two particular types of enabling institutions, countries’ property rights regulations and cooperative actions, are useful for lowering the obstacles presented by informal activity. We also find evidence that two constraining institutions, economic and financial regulations lead to more obstacles presented by informal activity. We describe implications for entrepreneurs, policy makers, and future researchers stemming from these findings. (shrink)

Management plays an important role in reinforcing ethics in organizations. To support this aim, managers must use incentive and goal programs in ethical ways. This study examines experimentally the potential ethical costs associated with incentive-driven and goal-induced employee behavior from a managerial perspective. In a quasi-experimental setting, 243 MBA students with significant professional work experience evaluated a hypothetical employee’s ethical behavior under incentive pay systems modeled on a business case. In the role of the employee’s manager, participants evaluated the ethicality (...) of the employee’s incentive-driven and goal-induced ethical/unethical behavior and the outcomes of behavior, with consequences that were either favorable or unfavorable to the organization. The results indicated that participants discounted the ethical considerations of incentive-driven and goal-induced behavior when consequences were favorable to the organization. Participants’ morals and outcome orientations were also significantly related to their ethical judgments and intentions to intervene. The implications of these findings for research and practice are discussed. (shrink)

Both fairness and efficiency are important considerations in market design and regulation, yet many regulators have neither defined nor measured these concepts. We develop an evidencebased policy framework in which these are both defined and measured using a series of empirical proxies. We then build a systems estimation model to examine the 2003–2011 explosive growth in algorithmic trading on the London Stock Exchange and NYSE Euronext Paris. Our results show that greater AT is associated with increased transactional efficiency and reduced (...) information leakage in top quintile stocks. For less liquid stocks, manipulation at the close declines. We also document the tradeoff between reduced spreads and increased manipulation or information leakage following the introduction of MiFID1. (shrink)

Albert and the career of virtue theory -- Modern virtue theory as foreground to Albert's moral philosophy -- Albert's ethical treatises -- The significance of Albert's moral treatises in early-thirteenth-century moral philosophy -- Approaching the moral order -- Meta-ethical reflections on "moral science" and its procedures -- The metaphysics of the good -- The architecture of moral goodness -- The genesis of virtue : intrinsic causes -- The genesis of virtue : extrinsic causes -- The concept of virtue -- The (...) organization of the virtues -- The passions -- Morality, obligation, and law -- Natural law -- Virtue's rewards -- Friendship -- Last ends and happiness -- Conclusion: Albertus redux. (shrink)

Journalism and media ethics texts commonly invoke Aristotle's Golden Mean as a principal ethical theory that models such journalistic values as balance, fairness, and proportion. Working from Aristotle's text, this article argues that the Golden Mean model, as widely understood and applied to media ethics, seriously belies Aristotle's intent. It also shortchanges the reality of our moral agency and epistemic responsibility. A more authentic rendering of Aristotle's theory of acting rightly, moreover, has profound implications for communication ethicists and media practitioners.

For over three decades, clinical ethicists in the United States have recorded their consulting activities to supplement documentation in the medical record, often using locally developed instrument...

In this paper, we explore Peirce's work for insights into a theory of learning and cognition for education. Our focus for this exploration is Peirce's paper The Fixation of Belief (FOB), originally published in 1877 in Popular Science Monthly. We begin by examining Peirce's assertion that the study of logic is essential for understanding thought and reasoning. We explicate Peirce's view of the nature of reasoning itself—the characteristic guiding principles or ‘habits of mind’ that underlie acts of inference, the dimensions (...) of and interaction between doubt and belief, and his four methods of resolving or ‘fixing’ belief (i.e., tenacity, authority, a priori, and experimentation). The four methods are then juxtaposed against current models of teaching and learning such as constructivism, schema theory, situated cognition, and inquiry learning. Finally, we discuss Peirce's modes of inference as they relate educationally to the resolution of doubt and beliefs and offer an example of belief resolution from an experienced teacher in a professional development environment. (shrink)

A recent issue of Report from the Institute for Philosophy and Public Affairs identifies four ethical issues for the 21st century. By not including media ethics, the Report overlooks a crucial logical priority. That oversight is reflected in greater academe where media ethics (unlike, say, biomedical ethics) is scarcely acknowledged. This article argues that communication ethics, as an integral part of the wider enterprise of media literacy, deserves greater prominence in our town-and-gown communities.

Time was, notably in the theories of classical and medieval moralists, when virtue figured as the central feature in the conception of moral worth. Today, the notion of virtue has slid into conspicuous disuse. Among a few writers today, one can still detect scattered indications of a return to varieties of this conception of goodness; but in most of the contemporary literature it is safe to say that the deontic and usually co-relative notions of ‘right’, ‘ought’, ‘duty’ and ‘obligation’ now (...) command the primacy that once was virtue’s. In works of this decade, for instance, it is not uncommon to encounter the following kind of statement: “The experience of moral obligation is the central element in the concept of morality.” The replacement of the concept of virtue with the language of “right” and “obligation” is an historical phenomenon whose investigation would probably uncover a number of contributing causes. Quite obviously, for instance, the shift owes a great deal to Kant’s insistence upon the dispassionately legislative function of the moral judgment. Yet even more radically, I think it could be shown that the interpretation of moral experience has too often been invaded with the properly epistemic concerns of certitude and objectivity in the moral judgment—hence the emphasis on the “right”—and too often grounded on the assumption that moral judgments are properly moral only when they measure up to this or that criterion. But it is probably more to the point to suppose that the erosion of virtue within philosophical discourse was brought about as much by its own obfuscation as by any competing counter-insistence upon the legislative models of imperativeness and prescriptivity. If, that is to say, the notion of virtue was displaced as a significant ethical principle, it was because philosophers themselves became unclear as to its origins and nature. More concretely, the demise of the notion of virtue was inevitable when it was cut off from direct participation in human actions and relegated exclusively to the private area of emotions and desires. (shrink)

Three studies were conducted to explore the psychological determinants of COVID-deterrent behaviors. In Study 1, using data collected and analyzed both before and after the release of COVID-19 vaccines, mask-wearing, other preventative behaviors like social distancing, and vaccination intentions were positively related to assessments of the Coronavirus Behavioral Health Mindset ; belief in the credibility of science; progressive political orientation; less use of repressive and more use of sensitization coping; and the attribution of COVID-19 safety to effort rather than ability, (...) powerful forces, fate, or luck. In Study 2, favorable COVID-19 vaccination intentions were related to greater willingness to work, lower emotional distress, and greater customer experience mindset. Study 3 examined the personality and motives of individuals who volunteered to help deliver COVID-19 inoculations to the local community. The vaccine-giving volunteers, especially those with prosocial motives, had high CVBHM scores, belief in the credibility of science, low use of repressive coping, greater attribution of COVID-19 protection to effort, low likelihood of voting conservative, were older, and had more education than others. The majority of public health volunteers expressed prosocial motives to help people or join a cause, but many expressed the personal motives of getting the COVID-19 vaccination for themselves, conveying a public image of compassion, or structuring time. Based on the three research studies, a COVID-19 Mindset Hierarchy model is proposed to integrate the results. (shrink)

The concept of an 'assumption' is discussed, and it is suggested that the psychological model implied by normal usage is misleading. A new model is proposed which distinguishes between 'assumptions', as constraints upon the thinking process, and 'postulates', as corresponding potential or actual propositional vocalizations. Some evidence for this model is provided, and its implications, particularly for the process of assumption identification, are discussed. It is suggested that assumption identification requires lateral thinking, and needs to be separated from problem-solving. The (...) discussion is offered as an instance of an appropriate type of fusion of psychological and informal-logical approaches. (shrink)

Perceived size is a function of viewing distance, retinal images size, and various contextual cues such as linear perspective and the size and location of neighboring objects. Recently, we demonstrated that illusion magnitudes of classic visual size illusions may be greatly enhanced or reduced by adding dynamic elements. Specifically, a dynamic version of the Ebbinghaus illusion (classically considered a “size contrast” illusion) led to a greatly enhanced illusory effect, whereas a dynamic version of the Corridor illusion (a “size constancy” illusion) (...) led to a greatly diminished illusory effect. Although these differences may arise from the different processes underlying these illusions (size contrast vs. size constancy), the dynamic variants we tested in our previous work also differed in the nature of the dynamic elements; specifically, whereas the Dynamic Ebbinghaus included a moving target and inducers that changed size and position, the Dynamic Corridor only included a moving target on a static background. Here, we explore further dynamic versions of the Ebbinghaus illusion and the Corridor and Ponzo illusions by separately manipulating three types of dynamic elements: target motion, context translation, and dynamic changes in context. Across five experiments examining 21 dynamic illusory configurations, adding target motion or a dynamically changing context separately resulted in little-to-no illusory effect. In contrast, the combination of target motion and a dynamically changing context led to a robust size illusion, consistent with an interactive effect. However, illusory effects that exceeded the matched classic, static illusory configuration were only observed for the dynamic versions of the Ebbinghaus illusion and the Revealed Ponzo illusions, in which the contextual elements changed size. We conclude that the combination of target motion and a dynamically changing context are necessary to produce dynamic size illusions, but that enhancement above and beyond static illusions may be largely specific to size contrast effects. Our results have important implications for the integration of motion signals, a ubiquitous environmental stimulus, in the perception of object size. (shrink)

Competitor intelligence gathering involves the aggregation of competitive information to facilitate strategic development and a competitive advantage. Unfortunately, companies are sometimes willing to carry out questionable gathering practices to collect such information. An ethical decision making framework for competitor intelligence gathering is presented in this paper that outlines the impact of several strengthening and weakening factors on individual ethical reasoning. Dialogue is provided about the management of intelligence gathering from various viewpoints, and the implications of these managerial suggestions are discussed.

At the beginning of 2020, COVID-19 became a global problem. Despite all the efforts to emphasize the relevance of preventive measures, not everyone adhered to them. Thus, learning more about the characteristics determining attitudinal and behavioral responses to the pandemic is crucial to improving future interventions. In this study, we applied machine learning on the multi-national data collected by the International Collaboration on the Social and Moral Psychology of COVID-19 (N = 51,404) to test the predictive efficacy of constructs from (...) social, moral, cognitive, and personality psychology, as well as socio-demographic factors, in the attitudinal and behavioral responses to the pandemic. The results point to several valuable insights. Internalized moral identity provided the most consistent predictive contribution—individuals perceiving moral traits as central to their self-concept reported higher adherence to preventive measures. Similar was found for morality as cooperation, symbolized moral identity, self-control, open-mindedness, collective narcissism, while the inverse relationship was evident for the endorsement of conspiracy theories. However, we also found a non-negligible variability in the explained variance and predictive contributions with respect to macro-level factors such as the pandemic stage or cultural region. Overall, the results underscore the importance of morality-related and contextual factors in understanding adherence to public health recommendations during the pandemic. (shrink)

In 2012, a U.S. Institute of Medicine report called for a different approach to health care: “Left unchanged, health care will continue to underperform; cause unnecessary harm; and strain national, state, and family budgets.” The answer, they suggested, would be a “continuously learning” health system. Ethicists and researchers urged the creation of “learning health organizations” that would integrate knowledge from patient‐care data to continuously improve the quality of care. Our experience with an ongoing research study on atrial fibrillation—a trial known (...) as IMPACT‐AFib—gave us some insight into one of the challenges that will have to be dealt with in creating these organizations. Although the proposed educational intervention study placed no restrictions on what providers and health plans could do, the oversight team argued that the ethical principle of beneficence did not allow the researchers to be “bystanders” in relation to a control group receiving suboptimal care. In response, the researchers designed a “workaround” that allowed the project to go forward. We believe the experience suggests that what we call “bystander ethics” will create challenges for the kinds of quality improvement research that LHOs are designed to do. (shrink)