Goal‐directed cognition is often discussed in terms of specialized memory structures like the “goal stack.” The goal‐activation model presented here analyzes goal‐directed cognition in terms of the general memory constructs of activation and associative priming. The model embodies three predictive constraints: (1) the interference level, which arises from residual memory for old goals; (1) the strengthening constraint, which makes predictions about time to encode a new goal; and (3) the priming constraint, which makes predictions about the role of cues in (...) retrieving pending goals. These constraints are formulated algebraically and tested through simulation of latency and error data from the Tower of Hanoi, a means‐ends puzzle that depends heavily on suspension and resumption of goals. Implications of the model for understanding intention superiority, postcompletion error, and effects of task interruption are discussed. (shrink)

Many scientific discoveries have depended on external diagrams or visualizations. Many scientists also report to use an internal mental representation or mental imagery to help them solve problems and reason. How do scientists connect these internal and external representations? We examined working scientists as they worked on external scientific visualizations. We coded the number and type of spatial transformations (mental operations that scientists used on internal or external representations or images) and found that there were a very large number of (...) comparisons, either between different visualizations or between a visualization and the scientists’ internal mental representation. We found that when scientists compared visualization to visualization, the comparisons were based primarily on features. However, when scientists compared a visualization to their mental representation, they were attempting to align the two representations. We suggest that this alignment process is how scientists connect internal and external representations. (shrink)

A postcompletion error is a type of procedural error that occurs after the main goal of a task has been accomplished. There is a strong theoretical foundation accounting for postcompletion errors (Altmann & Trafton, 2002; Byrne & Bovair, 1997). This theoretical foundation has been leveraged to develop a logistic regression model of postcompletion errors based on reaction time and eye movement measures (Ratwani, McCurry, & Trafton, 2008). This study further develops and extends this predictive model by (a) validating (...) the model and the general set of predictors on a new task to test the robustness of the model, and (b) determining which specific theoretical components are most important to postcompletion error prediction. (shrink)

The term conceptual simulation refers to a type of everyday reasoning strategy commonly called “what if” reasoning. It has been suggested in a number of contexts that this type of reasoning plays an important role in scientific discovery; however, little direct evidence exists to support this claim. This article proposes that conceptual simulation is likely to be used in situations of informational uncertainty, and may be used to help scientists resolve that uncertainty. We conducted two studies to investigate the relationship (...) between conceptual simulation and informational uncertainty. Study 1 was an in vivo study of expert scientists; the results suggest that scientists do use conceptual simulation in situations of informational uncertainty, and that they use conceptual simulation to make inferences from their data using the analogical reasoning process of alignment by similarity detection. Study 2 experimentally manipulated experts' level of uncertainty and provides further support for the hypothesis that conceptual simulation is more likely to be used in situations of informational uncertainty. Finally, we discuss the relationship between conceptual simulation and other types of reasoning using qualitative mental models. (shrink)

We conducted two in vivo studies to explore how scientists respond to anomalies. Based on prior research, we identify three candidate strategies: mental simulation, mental manipulation of an image, and comparison between images. In Study 1, we compared experts in basic and applied domains (physics and meteorology). We found that the basic scientists used mental simulation to resolve an anomaly, whereas applied science practitioners mentally manipulated the image. In Study 2, we compared novice and expert meteorologists. We found that unlike (...) experts, novices used comparison to address anomalies. We discuss the nature of expertise in the two kinds of science, the relationship between the type of science and the task performed, and the relationship of the strategies investigated to scientific creativity. (shrink)

Associative learning is an essential feature of human cognition, accounting for the influence of priming and interference effects on memory recall. Here, we extend our account of associative learning that learns asymmetric item-to-item associations over time via experience by including link maturation to balance associations between longer-term stability while still accounting for short-term variability. This account, combined with an existing account of activation strengthening and decay, predicts both human response times and error rates for the fan effect for both target (...) and foil stimuli. (shrink)

We describe a new approach for developing and validating cognitive process models. We develop graphical models (specifically, hidden Markov models) both from human empirical data on a task, as well as from synthetic data traces generated by a cognitive process model of human behavior on the task. We show that considering differences between the two graphical models can unveil substantive and nuanced imperfections of cognitive process models that can then be addressed to increase their fidelity to empirical data.

We present a spatial system called Specialized Egocentrically Coordinated Spaces embedded in an embodied cognitive architecture (ACT-R Embodied). We show how the spatial system works by modeling two different developmental findings: gaze-following and Level 1 perspective taking. The gaze-following model is based on an experiment by Corkum and Moore (1998), whereas the Level 1 visual perspective-taking model is based on an experiment by Moll and Tomasello (2006). The models run on an embodied robotic system.

We present a novel way of accounting for similarity judgments. Our approach posits that similarity stems from three main sources—familiarity, priming, and inherent perceptual likeness. Here, we explore each of these constructs and demonstrate their individual and combined effectiveness in explaining similarity judgments. Using these three measures, our account of similarity explains ratings of simple, color-based perceptual stimuli that display asymmetry effects, as well as more complicated perceptual stimuli with structural properties; more traditional approaches to similarity solve one or the (...) other and have difficulty accounting for both. Overall, our work demonstrates the importance of each of these components of similarity in explaining similarity judgments, both individually and together, and suggests important implications for other similarity approaches. (shrink)

In a competitive and morally imperfect world, business people are often faced with serious ethical challenges. Harboring suspicions about the ethics of others, many feel justified in engaging in less-than-ideal conduct to protect their own interests. The most sophisticated moral arguments are unlikely to counteract this behavior. We believe that this morally defensive behavior is responsible, in large part, for much undesirable deception in negotiation. Drawing on recent work in the literature of negotiations, we present some practical guidance on how (...) negotiators might build trust, establish common interests, and secure credibility for their statements, thereby promoting honesty. We also point out the types of social and institutional arrangements, many of which have become commonplace, that work to promote credibility, trust, and honesty in business dealings. Our approach is offered not only as a specific response to the problem of deception in negotiation, but as one model of how research in business ethics might offer constructive advice to practitioners. (shrink)

The American Institute of Certified Public Accountants monitors the misconduct of its members using the AICPA Code of Professional Conduct. To accomplish this task, the AICPA relies on various stakeholders to report known violations of its CPC. We examine the full population of sanctions imposed by the AICPA on its members under its CPC from 2008–2013 to identify recent trends in the misconduct of accounting professionals. While we find that multiple stakeholders identify and report violations, we also find that the (...) most common types of violations remain consistent with those reported in the 1990s. Further, we develop a taxonomy based on prior accounting literature to determine whether the AICPA CPC is being enforced to defend the public interest and/or the private interests of the accounting profession. In contrast to prior studies, our results suggest that as the accounting profession emerges from a recession and period of intense public scrutiny, the AICPA CPC is largely being enforced to defend the public interest. This public interest focus was most pronounced during the recessionary years of 2008–2010, as evident from misconduct reported by parties such as the Internal Revenue Service, Securities and Exchange Commission, Public Company Accounting Oversight Board, and state boards of accountancy. Although key stakeholders have recently focused on reporting misconduct that threatens the public interest, we believe there are still areas in need of improvement, especially around the level of detail provided in the AICPA’s sanction records. We propose some possible solutions to improve public transparency. (shrink)

In 1969 Robert Nozick published the first extensive philosophical analysis of the concept of coercion. His analysis has since generated a great deal of controversy. This dissertation is an attempt to resolve much of the controversy. It begins with a detailed review of recent work on coercion. Based on the lessons learned in this review, a new theory of coercion and its ethics is proposed. The theory identifies the essential features of a coerced choice and distinguishes several senses in which (...) we might say that someone is coerced. By allowing for different senses of coercion with a common core, the theory is able to account for examples that are problematic without losing sight of valuable distinctions. For instance, one particularly controversial group of examples involves offers that appear to be coercive, even when no threat is present. The new theory allows many of these offers to be termed coercive, but not in the same strict sense that is associated with coercive threats. The treatment of the ethics of coercion that is presented in this dissertation is more comprehensive than any previous treatment of the topic. It challenges some commonly held beliefs. Most significantly, it challenges the belief that coercion is in itself a great moral evil. Many instances of coercion involve no moral violation. Immoral instances of coercion are generally immoral, not because of the coercion per se, but because of other morally objectionable features of the situation. The dissertation ends with an application of the new theory of coercion and its ethics to a public policy problem of current interest. (shrink)

Two cultures are at play in the field of social entrepreneurship: an age-old culture of charity, and a more contemporary culture of entrepreneurial problem solving. These cultures permeate activities from resource providers to front line operations. Both have roots in our psychological responses to the needs of others and are reinforced by social norms. They can work hand-in-hand or they can be at odds. Some of the icons of the social entrepreneurship movement have spoken harshly about charity, yet most of (...) them rely to some degree, at least early in their development process, on resources that are given out of a charitable impulse. The success of social entrepreneurship requires an integration of values from each of these cultures, in which the satisfactions of giving are correlated with social benefits of rigorous problem solving. (shrink)

From a traditional moral point of view, business practitioners often seem overly concerned about the behavior of their peers in deciding how they ought to act. We propose to account for this concern by introducing a mutual trust perspective, where moral obligations are grounded in a sense of trust that others will abide by the same rules. when grounds for trust are absent, the obligation is weakened. We illustrate this perspective by examining the widespread ambivalence with regard to deception about (...) one's settlement preferences in negotiation. On an abstract level, such deception generally seems undesirable, though in many individual cases it is condoned, even admired as shrewd bargaining. Because of the difficulty in verifying someone's settlement preferences, it is hard to establish a basis for trusting the revelations of the other party, especially in competitive negotiations with relative strangers. (shrink)

Notions of agency and of weakness of will clearly seem to be related to one another. This essay takes on a rather modest task in relation to current discussion of these topics; it seeks to establish the following claim: If A is a normal human agent, weakness of will is possible for A. The argument relies on demonstrating that certain necessary conditions for normal human agency are at least roughly equivalent to certain sufficient conditions for weakness of will. The connection (...) between agency and weakness of will is made through the use of an extended example that lays bare the links between the two. (shrink)

The Council of Europe’s 2008 White Paper on Intercultural Dialogue: ‘living together as equals in dignity’ points to the need for shared values upon which intercultural dialogue might rest. In order, however, to overcome the monologic separateness that threatens community, we must educate ourselves to recognize the dialogism of our humanity and to engage in deep encounters with others with a mature skepticism of all dogmatisms, including our own. In order to aid us in reaching the necessary insight, the author (...) calls upon Bakhtin’s ideas of the dialogism of every utterance and of the unity and heteroglossia of language, Gadamer’s hermeneutical experience that shakes us loose from what we think we know, and Levinas’s description of that transcendent ideal of a dialogue beyond reciprocity. These perspectives break open our certainty that tribalism and individualism are fundamental, placing them instead as secondary phenomena that, though powerful, pronounce neither the initial nor the final word on our life together. (shrink)

This paper consists of a conversation between a philosopher specialising in ethics and religion and an educational researcher with an interest in cultural studies and contemporary social theory. Dialogic in form, this paper employs an interdisciplinary response to an interdisciplinary project and offers the following components: a dialogic theorizing of the implications for education of a research project on spiritual capital; a continuation of the project of analyzing moral thinking in various cultural and societal settings; a continuation of the project (...) of analyzing political rhetoric (towards an understanding of the polemics of political rhetoric); a reaffirmation of the value of recognizing difference and ambiguity in the global moment. (shrink)

God is typically conceived as perfectly good and necessarily so, in two senses: in terms of always performing the best possible act and in terms of having maximal moral worth. Yet any being that freely performs the best act she can must be accorded greater moral worth for any such action than a being that does so necessarily. I conclude that any being that performs the best possible act of necessity cannot also have maximal moral worth, making the concept of (...) God’s perfect goodness incoherent. (shrink)

In her article, "Thinking and Moral Considerations," Hannah Arendt provides a provocative approach to the question of evil by suggesting that banal evil-the most common kind-may arise directly from thoughtlessness. If that is so, thinking may provide an antidote to evil. Learning to think would then offer the individual and society protection against the dangers of thoughtless evil. She further suggests that thinking may clear the way for a form of judging that "when the chips are down" may turn people (...) toward right rather than wrong, beauty rather than ugliness. In this essay I address her claim by noting an example of apparently thoughtless evil, the murder of Duncan by Macbeth, and by showing how this event clarifies Arendt's thesis, including both its weaknesses and its strengths. The use of Macbeth will amount to a sketch of certain features of the play particularly relevant to this ethical issue, followed by an analysis of ways Arendt's thesis connects with the murder of Duncan. (shrink)

Microbial ecology is flourishing, and in the process, is making contributions to how the ecology and biology of large organisms is understood. Ongoing advances in sequencing technology and computational methods have enabled the collection and analysis of vast amounts of molecular data from diverse biological communities. While early studies focused on cataloguing microbial biodiversity in environments ranging from simple marine ecosystems to complex soil ecologies, more recent research is concerned with community functions and their dynamics over time. Models and concepts (...) from traditional ecology have been used to generate new insight into microbial communities, and novel system-level models developed to explain and predict microbial interactions. The process of moving from molecular inventories to functional understanding is complex and challenging, and never more so than when many thousands of dynamic interactions are the phenomena of interest. We outline the process of how epistemic transitions are made from producing catalogues of molecules to achieving functional and predictive insight, and show how those insights not only revolutionize what is known about biological systems but also about how to do biology itself. Examples will be drawn primarily from analyses of different human microbiota, which are the microbial consortia found in and on areas of the human body, and their associated microbiomes (the genes of those communities). Molecular knowledge of these microbiomes is transforming microbiological knowledge, as well as broader aspects of human biology, health and disease. (shrink)

Mounting evidence shows that nature contact is associated with affective benefits. However, the psychological mechanisms responsible for these effects are not well understood. In this study, we examined whether more time spent in nature was associated with higher levels of positive affect in general, and lower levels of negative affect and rumination in general. We also conducted a cross-sectional mediation analysis to examine whether rumination mediated the association of nature contact with affect. Participants reported their average time spent in nature (...) each week, as well as their general levels of positive and negative affect, and the degree to which they typically engaged in rumination in daily life. We then used structural equation modeling to test our hypotheses. Our results support the hypothesis that nature contact is associated with general levels of affect, and that rumination mediates this association for negative affect, and marginally mediates this association for positive affect. (shrink)