This article investigates the potential of fMRI to test assumptions about different components in models of complex cognitive tasks. If the components of a model can be associated with specific brain regions, one can make predictions for the temporal course of the BOLD response in these regions. An event‐locked procedure is described for dealing with temporal variability and bringing model runs and individual data trials into alignment. Statistical methods for testing the model are described that deal with the scan‐to‐scan correlations (...) in the errors of measurement of the BOLD signal. This approach is illustrated using a “sacrificial” ACT‐R model that involves mapping 6 modules onto 6 brain regions in an experiment from Ravizza, Anderson, and Carter (in press) concerned with equation solving. The model's visual encoding predicted the BOLD response in the fusiform gyrus, its controlled retrieval predicted the BOLD response in the lateral inferior prefrontal cortex, and its subgoal setting predicted the BOLD response in the anterior cingulate cortex. On the other hand, its motor programming failed to predict anticipatory activation in the motor cortex, its representational changes failed to predicted the pattern of activity in the posterior parietal cortex, and its procedural component failed to predict an initial spike in caudate. The results illustrate the power of such data to direct the development of a theory of complex problem solving, both at the level of a specific task model as well as at the level of the cognitive architecture. (shrink)

Open‐ended tasks can be decomposed into the three levels of Newell's Cognitive Band: the Unit‐Task level, the Operation level, and the Deliberate‐Act level. We analyzed the video game Co‐op Space Fortress at these levels, reporting both the match of a cognitive model to subject behavior and the use of electroencephalogram (EEG) to track subject cognition. The Unit Task level in this game involves coordinating with a partner to kill a fortress. At this highest level of the Cognitive Band, there is (...) a good match between subject behavior and the model. The EEG signals were also strong enough to track when Unit Tasks succeeded or failed. The intermediate Operation level in this task involves legs of flight to achieve a kill. The EEG signals associated with these operations are much weaker than the signals associated with the Unit Tasks. Still, it was possible to reconstruct subject play with much better than chance success. There were significant differences in the leg behavior of subjects and models. Model behavior did not provide a good basis for interpreting a subject's behavior at this level. At the lowest Deliberate‐Act level, we observed overlapping key actions, which the model did not display. Such overlapping key actions also frustrated efforts to identify EEG signals of motor actions. We conclude that the Unit‐task level is the appropriate level both for understanding open‐ended tasks and for using EEG to track the performance of open‐ended tasks. (shrink)

Multi-voxel pattern recognition techniques combined with Hidden Markov models can be used to discover the mental states that people go through in performing a task. The combined method identifies both the mental states and how their durations vary with experimental conditions. We apply this method to a task where participants solve novel mathematical problems. We identify four states in the solution of these problems: Encoding, Planning, Solving, and Respond. The method allows us to interpret what participants are doing on individual (...) problem-solving trials. The duration of the planning state varies on a trial-to-trial basis with novelty of the problem. The duration of solution stage similarly varies with the amount of computation needed to produce a solution once a plan is devised. The response stage similarly varies with the complexity of the answer produced. In addition, we identified a number of effects that ran counter to a prior model of the task. Thus, we were able to decompose the overall problem-solving time into estimates of its components and in way that serves to guide theory. (shrink)

A study in the philosophy of mind, centred on the problem of 'intentionality' the sense in which emotions can be said to have objects, their relation to these objects, and the implications of this relation for our understanding of human action and behaviour. Dr Wilson sets his enquiry against a broad historical background on what distinguishes man from inanimate objects by describing both Cartesian view of man is matter plus mind and the neo-Wittgensteinian view that there is a dynamic behavioural (...) difference – causal notions being often inapplicable to human action. Dr Wilson goes on to show the controversies and arguments that arise from the notion of intentionality cannot be analysed in causal terms. Dr Wilson believes that this notion can be shown causally and sets out to prove it. Finally, he brings this argument to a larger context mentioning that it has far-reaching effects in natural and social sciences. (shrink)

A study in the philosophy of mind, centred on the problem of 'intentionality' the sense in which emotions can be said to have objects, their relation to these objects, and the implications of this relation for our understanding of human action and behaviour. Dr Wilson sets his enquiry against a broad historical background on what distinguishes man from inanimate objects by describing both Cartesian view of man is matter plus mind and the neo-Wittgensteinian view that there is a dynamic behavioural (...) difference – causal notions being often inapplicable to human action. Dr Wilson goes on to show the controversies and arguments that arise from the notion of intentionality cannot be analysed in causal terms. Dr Wilson believes that this notion can be shown causally and sets out to prove it. Finally, he brings this argument to a larger context mentioning that it has far-reaching effects in natural and social sciences. (shrink)

John Searle's Speech Acts (1969) and Expression and Meaning (1979) developed a highly original and influential approach to the study of language. But behind both works lay the assumption that the philosophy of language is in the end a branch of the philosophy of the mind: speech acts are forms of human action and represent just one example of the mind's capacity to relate the human organism to the world. The present book is concerned with these biologically fundamental capacities, (...) and, though third in the sequence, in effect it provides the philosophical foundations for the other two. Intentionality is taken to be the crucial mental phenomenon, and its analysis involves wide-ranging discussions of perception, action, causation, meaning, and reference. In all these areas John Searle has original and stimulating views. He ends with a resolution of the 'mind-body' problem. (shrink)

John Searle's Speech Acts (1969) and Expression and Meaning (1979) developed a highly original and influential approach to the study of language. But behind both works lay the assumption that the philosophy of language is in the end a branch of the philosophy of the mind: speech acts are forms of human action and represent just one example of the mind's capacity to relate the human organism to the world. The present book is concerned with these biologically fundamental capacities, (...) and, though third in the sequence, in effect it provides the philosophical foundations for the other two. Intentionality is taken to be the crucial mental phenomenon, and its analysis involves wide-ranging discussions of perception, action, causation, meaning, and reference. In all these areas John Searle has original and stimulating views. He ends with a resolution of the 'mind-body' problem. (shrink)

This book shows that, far from repudiating Hegel, Dewey's entire pragmatic philosophy is premised on a "philosophy of spirit" inspired by Hegel's project.

Anne Conway rejects the view that creatures are essentially members of any natural kind more specific than the kind 'creature'. That is, she rejects essentialism about species membership. This chapter provides an analysis of one of Anne Conway's arguments against such essentialism, which (as I argue) is drawn from metaethical rather than metaphysical premises. In her view, if a creature's species or kind were inscribed in its essence, that essence would constitute a limit on the creature's potential to participate in (...) the divine good. It is this consideration that ultimately leads her to reject essentialism about species membership. The chapter concludes with an examination of some of the metaethical consequences of Conway's view as well as a lesson it can teach us about ideal adviser accounts of the good. (shrink)

Dewey is known for education theories to promote democracy, but what is democracy for? His philosophy advanced democracy as education itself, reaching higher levels of social intelligence. Praising community or promoting rights doesn't get to the heart of Dewey's vision, which seeks everyone's good in a social life that is intelligently lived.

In this collection of essays, written especially for this volume, many of the most prominent scholars on Dewey are inspired to search for that new enlightenment that Dewey himself sought, reconfigured to deal with the pressing problems of our times.

Naturalism is widely regarded as the dominant philosophical worldview in the West. The prestige of science and the power of technology have driven naturalism to prominence, even as deep questions mount on all sides. In this volume of all new essays, prominent philosophers consider a wide variety of challenges to naturalism, proposing improved defenses and novel developments in this influential worldview. Some essays question whether naturalism is a unified philosophy, and try to determine how one or another variety of naturalism (...) has an advantage. Other essays defend naturalism's approaches to religion, the mind, experience, morality, and society. To ensure that naturalism has a strong future, this volume's authors are determined to help reformulate its principles for the 21st century. Among the contributors are Mario Bunge, Paul Kurtz, John Lachs, Isaac Levi, Joseph Margolis, Nicholas Rescher, John R. Shook, and other leading philosophers. (shrink)

Designed to fill a large gap in American philosophy scholarship, this bibliography covers the first four decades of the pragmatic movement. It references most of the philosophical works by the twelve major figures of pragmatism: Charles S. Peirce, William James, John Dewey, George H. Mead, F.C.S. Schiller, Giovanni Papini, Giovanni Vailati, Guiseppe Prezzolini, Mario Calderoni, A.W. Moore, John E. Boodin, and C.I. Lewis. It also includes writings of dozens of minor pragmatic writers, along with those by commentators and (...) critics of pragmatism. It encompasses literature not only concerning pragmatism as an alliance of philosophical theories of meaning, inquiry, belief, knowledge, logic, truth, ontology, value, and morality, but also as an intellectual and cultural force impacting art, literature, education, the social and natural sciences, religion, and politics. This bibliography contains 2,794 main entries and more than 2,000 additional references, organized by year of publication. 2,101 of the references include annotation. Its international scope is focused on writings in English, French, German, and Italian, though many other languages are also represented. Peter H. Hare contributed the Guest Preface. The introduction contains an historical orientation to pragmatism and guides to recent studies of pragmatic figures. This work is extensively cross-referenced, and it has exhaustive and lengthy author and subject indexes. (shrink)

Homegardens are traditional food systems that have been adapted over generations to fit local cultural and ecological conditions. They provide a year-round diversity of nutritious foods for smallholder farming communities in many regions of the tropics and subtropics. In southwestern Uganda, homegardens are the primary source of food, providing a diverse diet for rural marginalized poor. However, national agricultural development plans as well as economic and social pressures threaten the functioning of these homegardens. The implications of these threats are difficult (...) to evaluate, because the structure and functions of the homegardens are not well understood. The aim of the study was to identify patterns and influencing factors in the diversity of homegardens by documenting the floristic diversity and its interactions with spatial, environmental and socio-economic factors. A geographically and socially focused assessment of floristic diversity in 102 randomly selected homegardens in three districts of southwest Uganda was conducted along a deforestation gradient following a human ecology conceptual framework and testing multiple quantitative hypotheses regarding the above mentioned factors. A merged mixed-method approach was followed to provide context and feedback regarding quantitative findings. Results show a high total richness of 209 crop species dominated by food species, which constituted 96 percent of individuals and 44 percent of all species. Forest-edge homegardens maintained higher plant diversity compared to homegardens in deforested areas and near degraded wetlands. Multiple linear regression models indicated elevation, location, homegarden size, distance to market, additional land ownership and livestock ownership as significant predictors of crop diversity. Cluster analysis of species densities revealed four garden types: ‘diverse tree gardens’, ‘small forest-edge gardens’, ‘large, old, species-rich gardens’, and ‘large, annual-dominated herb gardens’, with 98% correct classification. Location, elevation, and garden size were also important determinants in the cluster assignment. We conclude that the diversity of the studied homegardens may be changing as part of adaptive traditional practices and in response to external drivers. The identified patterns illustrate the importance of homegardens for rural livelihoods and may offer some ways to support farmers to maintain these systems as relevant mechanisms for development in Uganda. (shrink)

This chapter contains sections titled: Feinberg's “methodological individualism” French and his critics Conclusion.

The appropriate methodology for psychological research depends on whether one is studying mental algorithms or their implementation. Mental algorithms are abstract specifications of the steps taken by procedures that run in the mind. Implementational issues concern the speed and reliability of these procedures. The algorithmic level can be explored only by studying across-task variation. This contrasts with psychology's dominant methodology of looking for within-task generalities, which is appropriate only for studying implementational issues.The implementation-algorithm distinction is related to a number of (...) other “levels” considered in cognitive science. Its realization in Anderson's ACT theory of cognition is discussed. Research at the algorithmic level is more promising because it is hard to make further fundamental scientific progress at the implementational level with the methodologies available. Protocol data, which are appropriate only for algorithm-level theories, provide a richer source than data at the implementational level. Research at the algorithmic level will also yield more insight into fundamental properties of human knowledge because it is the level at which significant learning transitions are defined.The best way to study the algorithmic level is to look for differential learning outcomes in pedagogical experiments that manipulate instructional experience. This provides control and prediction in realistically complex learning situations. The intelligent tutoring paradigm provides a particularly fruitful way to implement such experiments.The implications of this analysis for the issue of modularity of mind, the status of language, research on human/computer interaction, and connectionist models are also examined. (shrink)

In Bergson and Intensive Magnitude: Dismantling his Critique, Florian Vermeiren argues that Bergson’s critique of intensive magnitude in Time and Free Will is inconsistent with his later philosophy, and even inconsistent with the role of a “difference in degrees of freedom” in Time and Free Will. I argue that it is rather Vermeiren’s analysis which mischaracterizes Bergson’s critique and therefore the interpretation of an inconsistency cannot stand. In the first two sections I reevaluate Bergson’s critique, showing what, according to Bergson, (...) are the good and bad senses of intensity, and how this critique allowed Bergson to institute a new conception of difference as expressed in concrete continuity. In the final section I examine the importance of infinitesimal thought in Bergson’s good sense of intensity. (shrink)

Newell proposed that cognitive theories be developed in an effort to satisfy multiple criteria and to avoid theoretical myopia. He provided two overlapping lists of 13 criteria that the human cognitive architecture would have to satisfy in order to be functional. We have distilled these into 12 criteria: flexible behavior, real-time performance, adaptive behavior, vast knowledge base, dynamic behavior, knowledge integration, natural language, learning, development, evolution, and brain realization. There would be greater theoretical progress if we evaluated theories by a (...) broad set of criteria such as these and attended to the weaknesses such evaluations revealed. To illustrate how theories can be evaluated we apply these criteria to both classical connectionism and the ACT-R theory. The strengths of classical connectionism on this test derive from its intense effort in addressing empirical phenomena in such domains as language and cognitive development. Its weaknesses derive from its failure to acknowledge a symbolic level to thought. In contrast, ACT-R includes both symbolic and subsymbolic components. The strengths of the ACT-R theory derive from its tight integration of the symbolic component with the subsymbolic component. Its weaknesses largely derive from its failure, as yet, to adequately engage in intensive analyses of issues related to certain criteria on Newell's list. Key Words: cognitive architecture; connectionism; hybrid systems; language; learning; symbolic systems. (shrink)

As Louisiana and Cuba emerged from slavery in the late nineteenth century, each faced the question of what rights former slaves could claim. Degrees of Freedom compares and contrasts these two societies in which slavery was destroyed by war, and citizenship was redefined through social and political upheaval. Both Louisiana and Cuba were rich in sugar plantations that depended on an enslaved labor force. After abolition, on both sides of the Gulf of Mexico, ordinary people-cane cutters and cigar workers, laundresses (...) and labor organizers-forged alliances to protect and expand the freedoms they had won. But by the beginning of the twentieth century, Louisiana and Cuba diverged sharply in the meanings attributed to race and color in public life, and in the boundaries placed on citizenship. Louisiana had taken the path of disenfranchisement and state-mandated racial segregation; Cuba had enacted universal manhood suffrage and had seen the emergence of a transracial conception of the nation. What might explain these differences? Moving through the cane fields, small farms, and cities of Louisiana and Cuba, Rebecca Scott skillfully observes the people, places, legislation, and leadership that shaped how these societies adjusted to the abolition of slavery. The two distinctive worlds also come together, as Cuban exiles take refuge in New Orleans in the 1880s, and black soldiers from Louisiana garrison small towns in eastern Cuba during the 1899 U.S. military occupation. Crafting her narrative from the words and deeds of the actors themselves, Scott brings to life the historical drama of race and citizenship in postemancipation societies. (shrink)

This chapter contains sections titled: Scientific History Scientific History and Scripture The Argument from Divine Signs The Argument from Apostolic Faith The Argument from Divine Character The Argument from Pseudo‐history.

The claim that managers have a fiduciary duty to shareholders to run the corporation in their interests is generally supported by two arguments: that shareholders are owners of a corporation and that they have a contract or agency relation with management. The latter argument is used by Kenneth E. Goodpaster, who rejects a multi-fiduciary, stakeholder approach on the grounds that the shareholder-management relation is “ethically different” because of its fiduciary character. Both of these arguments provide an inadequate basis for the (...) fiduciary duties of officers and directors of corporations. The basis is to be found, rather, in considerations of public policy, a point that was established in the Dodd-Berle exchange of the 1930s. This conclusion also shows the inadequacy of Goodpaster’s solution to the so-called stakeholder paradox, and an alternative solution to the paradox is presented. (shrink)

The claim that managers have a fiduciary duty to shareholders to run the corporation in their interests is generally supported by two arguments: that shareholders are owners of a corporation and that they have a contract or agency relation with management. The latter argument is used by Kenneth E. Goodpaster, who rejects a multi-fiduciary, stakeholder approach on the grounds that the shareholder-management relation is “ethically different” because of its fiduciary character. Both of these arguments provide an inadequate basis for the (...) fiduciary duties of officers and directors of corporations. The basis is to be found, rather, in considerations of public policy, a point that was established in the Dodd-Berle exchange of the 1930s. This conclusion also shows the inadequacy of Goodpaster’s solution to the so-called stakeholder paradox, and an alternative solution to the paradox is presented. (shrink)

This chapter contains sections titled: Religion under Scrutiny Debating Dogma Theology and Atheology Could Atheism Prove God Doesn't Exist? Could Religion Disprove Atheism?

This chapter contains sections titled: Liberal Modernism and Its Rivals Twelve Worldviews Faith and Reason Realigned.

We examine deceptive impression management's effect on a supervisor's ratings of promotability and relationship quality (i.e., leader-member exchange) via the mediating role of the supervisor's recognition of deception. Extending ego depletion theory using social information processing theory, we argue that deceptive impression management in a supervisor-subordinate relationship is difficult to accomplish and the degree that deception is detected will negatively impact desired outcomes. Data collected from a matched sample of 171 public sector employees and their supervisors supported this model and (...) indicated that recognition fully mediated the negative relationships between deceptive impression management with supervisor's rating of promotability and relationship quality. (shrink)

The study of rationality and practical reason, or rationality in action, has been central to Western intellectual culture. In this invigorating book, John Searle lays out six claims of what he calls the Classical Model of rationality and shows why they are false. He then presents an alternative theory of the role of rationality in thought and action. A central point of Searle's theory is that only irrational actions are directly caused by beliefs and desires—for example, the actions of (...) a person in the grip of an obsession or addiction. In most cases of rational action, there is a gap between the motivating desire and the actual decision making. The traditional name for this gap is "freedom of the will." According to Searle, all rational activity presupposes free will. For rationality is possible only where one has a choice among various rational as well as irrational options. Unlike many philosophical tracts, Rationality in Action invites the reader to apply the author's ideas to everyday life. Searle shows, for example, that contrary to the traditional philosophical view, weakness of will is very common. He also points out the absurdity of the claim that rational decision making always starts from a consistent set of desires. Rational decision making, he argues, is often about choosing between conflicting reasons for action. In fact, humans are distinguished by their ability to be rationally motivated by desire-independent reasons for action. Extending his theory of rationality to the self, Searle shows how rational deliberation presupposes an irreducible notion of the self. He also reveals the idea of free will to be essentially a thesis of how the brain works. (shrink)

Much of cognitive psychology focuses on effects measured in tens of milliseconds while significant educational outcomes take tens of hours to achieve. The task of bridging this gap is analyzed in terms of Newell's (1990) bands of cognition—the Biological, Cognitive, Rational, and Social Bands. The 10 millisecond effects reside in his Biological Band while the significant learning outcomes reside in his Social Band. The paper assesses three theses: The Decomposition Thesis claims that learning occurring at the Social Band can be (...) reduced to learning occurring at lower bands. The Relevance Thesis claims that instructional outcomes at the Social Band can be improved by paying attention to cognition at the lower bands. The Modeling Thesis claims that cognitive modeling provides a basis for bridging between events on the small scale and desired outcomes on the large scale. The unit-task level, at the boundary of the Cognitive and Rational Bands, is useful for assessing these theses. There is good evidence for all three theses in efforts that bridge from the unit-task level to educational applications. While there is evidence for the Decomposition Thesis all the way down to the 10 millisecond level, more work needs to be done to establish the Relevance Thesis and particularly the Modeling Thesis at the lower levels. (shrink)

Gödei's Theorem seems to me to prove that Mechanism is false, that is, that minds cannot be explained as machines. So also has it seemed to many other people: almost every mathematical logician I have put the matter to has confessed to similar thoughts, but has felt reluctant to commit himself definitely until he could see the whole argument set out, with all objections fully stated and properly met. This I attempt to do.

Cognitive science typically postulates unconscious mental phenomena, computational or otherwise, to explain cognitive capacities. The mental phenomena in question are supposed to be inaccessible in principle to consciousness. I try to show that this is a mistake, because all unconscious intentionality must be accessible in principle to consciousness; we have no notion of intrinsic intentionality except in terms of its accessibility to consciousness. I call this claim the The argument for it proceeds in six steps. The essential point is that (...) intrinsic intentionality has aspectual shape: Our mental representations represent the world under specific aspects, and these aspectual features are essential to a mental state's being the state that it is. (shrink)

In this study John Bowlin argues that Aquinas's moral theology receives much of its character and content from an assumption about our common lot: the good we desire is difficult to know and to will, in particular because of contingencies of various kinds - within ourselves, in the ends and objects we pursue, and in the circumstances of choice. Since contingencies are fortune's effects, Aquinas insists that it is fortune that makes good choice difficult. Bowlin then explicates Aquinas's treatment (...) of a number of topics in light of this difficulty: the moral and theological virtues, the first precepts of the natural law, the voluntariness of virtuous action, and the happiness available to us in this life. By noting that Aquinas proceeds with an eye on fortune's threats to virtue, agency, and happiness, Bowlin places him more precisely in the history of ethics, among Aristotle, Augustine, and the Stoics. (shrink)

An introduction to the major questions of philosophy by one of America's greatest and best-known philosophers. A practical guide to philosophical theory and how it applies to your life.