For decisions between many alternatives, the benchmark result is Hick's Law: that response time increases log-linearly with the number of choice alternatives. Even when Hick's Law is observed for response times, divergent results have been observed for error rates—sometimes error rates increase with the number of choice alternatives, and sometimes they are constant. We provide evidence from two experiments that error rates are mostly independent of the number of choice alternatives, unless context effects induce participants to trade speed for accuracy (...) across conditions. Error rate data have previously been used to discriminate between competing theoretical accounts of Hick's Law, and our results question the validity of those conclusions. We show that a previously dismissed optimal observer model might provide a parsimonious account of both response time and error rate data. The model suggests that people approximate Bayesian inference in multi-alternative choice, except for some perceptual limitations. (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)

The ability to imagine objects undergoing rotation (mental rotation) improves markedly with practice, but an explanation of this plasticity remains controversial. Some researchers propose that practice speeds up the rate of a general-purpose rotation algorithm. Others maintain that performance improvements arise through the adoption of a new cognitive strategy—repeated exposure leads to rapid retrieval from memory of the required response to familiar mental rotation stimuli. In two experiments we provide support for an integrated explanation of practice effects in mental rotation (...) by combining behavioral and EEG measures in a way that provides more rigorous inference than is available from either measure alone. Before practice, participants displayed two well-established signatures of mental rotation: Both response time and EEG negativity increased linearly with rotation angle. After extensive practice with a small set of stimuli, both signatures of mental rotation had all but disappeared. In contrast, after the same amount of practice with a much larger set both signatures remained, even though performance improved markedly. Taken together, these results constitute a reversed association, which cannot arise from variation in a single cause, and so they provide compelling evidence for the existence of two routes to expertise in mental rotation. We also found novel evidence that practice with the large but not the small stimulus set increased the magnitude of an early visual evoked potential, suggesting increased rotation speed is enabled by improved efficiency in extracting three-dimensional information from two-dimensional stimuli. (shrink)

Understanding individual differences in cognitive performance is an important part of understanding how variations in underlying cognitive processes can result in variations in task performance. However, the exploration of individual differences in the components of the decision process—such as cognitive processing speed, response caution, and motor execution speed—in previous research has been limited. Here, we assess the heritability of the components of the decision process, with heritability having been a common aspect of individual differences research within other areas of cognition. (...) Importantly, a limitation of previous work on cognitive heritability is the underlying assumption that variability in response times solely reflects variability in the speed of cognitive processing. This assumption has been problematic in other domains, due to the confounding effects of caution and motor execution speed on observed response times. We extend a cognitive model of decision‐making to account for relatedness structure in a twin study paradigm. This approach can separately quantify different contributions to the heritability of response time. Using data from the Human Connectome Project, we find strong evidence for the heritability of response caution, and more ambiguous evidence for the heritability of cognitive processing speed and motor execution speed. Our study suggests that the assumption made in previous studies—that the heritability of cognitive ability is based on cognitive processing speed—may be incorrect. More generally, our methodology provides a useful avenue for future research in complex data that aims to analyze cognitive traits across different sources of related data, whether the relation is between people, tasks, experimental phases, or methods of measurement. (shrink)

Two important debates have characterized mainstream epistemology in recent years. The first is the debate between foundationalists and anti-foundationalists. The second is the debate over the details of a naturalized epistemology. Both debates have meant that traditional concepts of rationality and justification are now understood in a new light. Both debates have helped focus attention on the future direction of epistemology, its goals and its limitations.

In everyday speech we seem to refer to such things as abstract objects, moral properties, or propositional attitudes that have been the target of metaphysical and/or epistemological objections. Many philosophers, while endorsing scepticism about some of these entities, have not wished to charge ordinary speakers with fundamental error, or recommend that the discourse be revised or eliminated. To this end a number of non-revisionary antirealist strategies have been employed, including expressivism, reductionism and hermeneutic fictionalism. But each of these theories faces (...) forceful objections. In particular, we argue, proponents of these strategies face a dilemma: either concedes that their theory is revisionary, or adopt an implausible account of speaker-meaning whereby the content of certain types of utterance is opaque to their speakers. In this paper we introduce a new type of antirealist strategy, which is thoroughly non-revisionary, and leaves speaker-meaning transparent to speakers. We draw on work on pragmatics in the philosophy of language to develop a theory we call ‘pragmatic antirealism’. The pragmatic antirealist holds that while the sentences of the discourses in question have metaphysically contentious truth conditions, ordinary utterances of them are pragmatically modified in context in such a way that speakers do not incur commitment to those truth conditions. After setting out the theory, we show how it might be developed for both mathematical and ethical discourse, before responding to some likely objections. (shrink)

Richard Thaler and Cass Sunstein, in Nudge: Improving Decisions About Health, Wealth, and Happiness, assert that rejecting the use nudges is ‘pointless’ because ‘[i]n many cases, some kind of nudge is inevitable’. Schlomo Cohen makes a similar claim. He asserts that in certain situations surgeons cannot avoid nudging patients either toward or away from consenting to surgical interventions. Cohen concludes that in these situations, nudging patients toward consenting to surgical interventions is uncriticizable or morally permissible. I call this argument: The (...) Unavoidability Argument. In this essay, I will respond to Cohen's use of the unavoidability argument in support of using nudges during the process of informed consent. Specifically, I argue that many so-called ‘unavoidable nudges’ are, in fact, avoidable. Although my argument is directed toward Cohen's use of the unavoidability argument, it is applicable to the unavoidability argument more generally. (shrink)

In this essay I discuss a novel engineering ethics class that has the potential to significantly decrease the likelihood that students will inadvertently or unintentionally act unethically in the future. This class is different from standard engineering ethics classes in that it focuses on the issue of why people act unethically and how students can avoid a variety of hurdles to ethical behavior. I do not deny that it is important for students to develop cogent moral reasoning and ethical decision-making (...) as taught in traditional college-level ethics classes, but as an educator, I aim to help students apply moral reasoning in specific, real-life situations so they are able to make ethical decisions and act ethically in their academic careers and after they graduate. Research in moral psychology provides evidence that many seemingly irrelevant situational factors affect the moral judgment of most moral agents and frequently lead agents to unintentionally or inadvertently act wrongly. I argue that, in addition to teaching college students moral reasoning and ethical decision-making, it is important to: 1. Teach students about psychological and situational factors that affect people’s ethical judgments/behaviors in the sometimes stressful, emotion-laden environment of the workplace; 2. Guide students to engage in critical reflection about the sorts of situations they personally might find ethically challenging before they encounter those situations; and 3. Provide students with strategies to help them avoid future unethical behavior when they encounter these situations in school and in the workplace. (shrink)

In this essay, I suggest that a slightly modified version of Freedman’s formulation of the clinical equipoise requirement is justified. I begin this essay with a brief discussion of the equipoise r...

This essay strives to bring together the institutional history of phenomenological psychology within the American academy from the middle of the 20th century to the current moment. Although phenomenological psychology has always been a dynamically international and interdisciplinary movement, the scope of this essay is limited to the different ways in which this new field expressed itself in certain psychology departments and educational institutions across the United States. After presenting this institutional history, and some individual contributors, a brief commentary is (...) offered. (shrink)

Traditional just war doctrine holds that political leaders are morally responsible for the decision to initiate war, while individual soldiers should be judged solely by their conduct in war. According to this view, soldiers fighting in an unjust war of aggression and soldiers on the opposing side seeking to defend their country are morally equal as long as each obeys the rules of combat. Revisionist scholars, however, maintain that soldiers who fight for an unjust cause bear at least some responsibility (...) for advancing an immoral end, even if they otherwise fight ethically. This article examines the attitudes of the American public regarding the moral equality of combatants. Utilizing an original survey experiment, we find that the public's moral reasoning is generally more consistent with that of the revisionists than with traditional just war theory. Americans in our study judged soldiers who participate in unjust wars as less ethical than soldiers in just wars, even when their battlefield conduct is identical, and a large proportion supported harsh punishments for soldiers simply for participating in unjust wars. We also find, however, that much of the American public is willing to extend the moral license of just cause significantly further than revisionist scholars advocate: half of the Americans in our survey were willing to allow an unambiguous war crime—a massacre of innocent women and children—to go unpunished when the act was committed by soldiers fighting for a just cause. Our findings suggest that incorporation of revisionist principles into the laws of war would reinforce dangerous moral intuitions encouraging the killing of civilians. (shrink)

This article examines the thoughts and works of Catholic philosopher Jacques Maritain and evangelical philosopher Norman Geisler in light of their understanding of Thomas Aquinas’s view of faith and reason.

The ultimate challenge for psychology as a human science inheres in accessing the experience of the other. In general, the field of psychology has perpetuated the epistemological dualism of distinguishing between the realm accessible by external perception and the realm accessible by inner perception, and hence between the subjective and the objective , regarding the "first person" perspective as a legitimate means of access only to one's own private experience, while insisting that all others' experience must be observed from a (...) neutral "third person" perspective. By reflecting on his participant-observational encounters with the animal other of the Bonobo, the author attempts to demonstrate in this paper the possibility of a third approach between the antinomy of methodological subjectivism and methodological objectivism as a way out of the dilemmas posed by epistemological dualism. The alternative proposed is the "second person" framework of observation, which, by invoking empathic seeing as its means of accessing the private space of the other and creating the space of the "in between", allows for intersubjective engagement in an experiential gestalt consisting of "myself and the other", and offers the possibility of testing one's ‘own' experience of an intersubjective moment in dialogue with the other. In so far as it infers the focusing of consciousness on embodied experience and expression, and the synthesis of receptive and proprioceptive consciousness in "experiaction" , the "second person" perspective restores inner reality to the realm of the observable, and thus reclaims observation as the method of psychology, and behaviour as its subject matter. The notion of empathy and intuition as a reliable and valid mode of access to the psychological life of others is substantiated theoretically with reference to inter alia Husserl's concepts of "coupling" and "co-constitution", Merleau-Ponty's notions of "inter-corporeality" or "carnal intersubjectivity" and of "the intertwining and the chiasm" of the "Ineinander" as constitutive of the "flesh of the world", Laing's postulation of the possibility of "interexperience", and the sense of union with the object of perception implied by Scheler's term "Einsfühlung" as the essence of intersubjective encounter. (shrink)

In this essay, I propose five principles to make U.S. nuclear deterrence policy more just and effective in the future: sever the link between the mass killing of innocent civilians and nuclear deterrence by focusing targeting on adversaries’ military power and senior political leadership, not their population; never use or plan to use a nuclear weapon against any target that could be destroyed or neutralized by conventional weapons; reject “belligerent reprisal” threats against civilians even in response to enemy attacks on (...) one's own or allied civilians; replace nuclear “calculated ambiguity” threats against biological or cyberattacks with “deterrence by denial” strategies; and work in good faith toward eventual nuclear disarmament. (shrink)

Burning fossil fuel in the North American continent contributes more to the CO2 global warming problem than in any other continent. The resulting climate changes are expected to alter food production. The overall changes in temperature, moisture, carbon dioxide, insect pests, plant pathogens, and weeds associated with global warming are projected to reduce food production in North America. However, in Africa, the projected slight rise in rainfall is encouraging, especially since Africa already suffers from severe shortages of rainfall. For all (...) regions, a reduction in fossil fuel burning is vital. Adoption of sound ecological resource management, especially soil and water conservation and the prevention of deforestation, is important. Together, these steps will benefit agriculture, the environment, farmers, and society as a whole. (shrink)

Despite its preeminent position in the just war tradition, the concept of proportionality is not well understood by military leaders. Especially lacking is a realization that there are four distinct types of proportionality. In determining whether a particular resort to war is just, national leaders must consider the proportionality of the conflict, i.e., balance the expected gain or just redress against the total harm likely to be inflicted by the impending armed action. This proportionality consideration is called jus ad bellum (...) proportionality. The second type of proportionality discussed is a continuing re-evaluation of the proportionality, taking into account the changing situation. The last true proportionality discussed is a consideration of hostile action taking during a conflict, or jus in bello proportionality. This consideration weighs the expected military gain of a particular action against the collateral damage and injuries that are expected from the act. Finally, the fourth category addressed is ‘political proportionality’, which is not a true proportionality consideration, but is rather self-interested deliberation on the possible political and military outcomes of actions. In some instances, it could be referred to as a measured response. A better understanding of proportionality in all its forms will help military leaders to give appropriate and moral advice on the potential resort to war, as well as on the conduct of military actions in war. The recent US war with Iraq in the spring of 2003 in defiance of the wishes of the majority of the UN Security Council, and especially with the potential for high noncombatant casualties in Baghdad, makes a discussion of the proper conduct of war even more poignant. (shrink)

This is a reply to Don Marquis’‘Why Abortion is Immoral.‘ Marquis, who asserts that abortion is morally wrong, bases his argument on the following premise: Killing a being is morally wrong if that being is the sort of being who has a valuable future. I argue that this premise is false. I then assert that if I am correct about this premise being false, Marquis is faced with a dilemma. If he does not alter the premise in a way that (...) makes it true, his argument is unsound. However, if he does make such an alteration, he must also alter a second premise in his argument, and this second change opens him to the charge of question begging. In addition, I conclude that such an alteration requires Marquis to adopt a position much like that taken by Judith J. Thompson in ‘A Defense of Abortion,‘ a position he initially states is indefensible. (shrink)

In “Nudging, Bullshitting, and the Meta-Nudge”, the author responds to William Simkulet’s claim that nudging is bullshitting (according to Harry Frankfurt’s analysis of bullshit and bullshitting), and therefore nudging during the process of informed consent renders consent invalid. The author argues that nudging is not necessarily bullshitting and then explains that although this issue is philosophically interesting, practically speaking, even if nudging is bullshitting, it does not follow that nudging necessarily renders informed consent invalid. This is obviously true in those (...) situations in which nudging during the process of informed consent is unavoidable. The author concludes with a discussion of the meta-nudge and suggests that physicians can use the meta-nudge to eliminate or decrease the power of inappropriate, problematic, or undesirable nudges. (shrink)

We are currently developing a short, online ethics course that attempts to teach students why well-intentioned people act unethically and what students can do to decrease the likelihood that they will find themselves in the middle of an ethical crisis in the future. Most of the well-known case studies in professional ethics textbooks concern ethical failures that do not involve difficult ethical choices. When our students read these case studies, it is not difficult for them to determine what went wrong (...) or what the players in the cases ought to have done. And students don’t need to read Kant or Mill to make these determinations. Importantly, the agents who acted wrongly usually seem to be ethical people. Rarely do cases involve moral monsters. In a similar vein, most cases of research misconduct are cut-and-dry, and most of our students who plagiarize did not enroll in the course intending to plagiarize. Rather, something went wrong. Professional ethics classes neglect to address an important practical question: Why do well-intentioned people find themselves in the middle of ethical crises and how can our students decrease the likelihood that they will find themselves in an ethical crisis in the future? We are developing a course that answers this question. Our course is built around the findings of John Dorris and other situationists. After teaching our students about situationism, we teach them a two-level theory of cognition that may help them avoid acting unethically. (shrink)

Freedom of speech long has been regarded as one of the “preferred freedoms” in the United States: one of the freedoms the U.S. Supreme Court deems “implicit in the concept of ordered liberty.” However, what freedom of speech does—and should—mean is a highly charged question in American constitutional law. I will explore this question by examining how several prominent constitutional theorists have proposed particular approaches to free speech law in order to further their political objectives. I will examine the free (...) speech theories of the nation's leading feminist legal theorist , critical race theorists , libertarian , and legal republican . I also will discuss the principal criticisms of each of these theories, whether the courts have been influenced by any of them, and, in conclusion, whether it is possible to advance a nonpolitical theory of free speech. (shrink)

1. Introduction. In recent years Brand Blanshard’s formulation of the coherence theory of truth, as he articulated it in The Nature of Thought, has come under formidable attack by Professor Nicholas Rescher of the University of Pittsburgh. In his otherwise excellent book, The Coherence Theory of Truth, later excerpted for P. A. Schilpp’s Library of Living Philosophers volume on Professor Blanshard, he criticizes Blanshard on two main counts.

In their contributions to the symposium “Just War and Unjust Soldiers,” Michael Walzer, Jeff McMahan, and Robert O. Keohane add greatly to our understanding of how best to study and apply just war doctrine to real-world conflicts. We argue, however, that they underestimate both the degree to which the American public seeks revenge, rather than just reciprocity, and the extent of popular acceptance of violations of noncombatant immunity by soldiers perceived to be fighting for a just cause. We call on (...) empirical political scientists, lawyers, psychologists, and historians to engage with moral philosophers and political theorists in debates about the influence of just war theory and the laws of armed conflict. (shrink)

The efforts of psychologists as well as laypersons to identify causes and motives of behavior is examined from an existential-phenomenological perspective. The claim made by modern psychology that its epistemological ground consists of an objectively given realm of “facts” is called into question. Psychological explanation is presented as a system of discourse that has its own psychological “motivation.” The traditional concepts of “conditions,” “causes,” and “motives” are critiqued and alternative notions such as “meaning” and “project” are drawn from the literature (...) of phenomenology as a basis for understanding rather than explaining human behavior. Verbal report data are used to illustrate and substantiate claims made about the illusive nature of explanation. 2012 APA, all rights reserved). (shrink)