In this book the author gives a broad overview of different areas of research in nonmonotonic reasoning, and presents some new results and ideas based on his research. The guiding principles are: clarification of the different research activities in the area, which have sometimes been undertaken independently of each other; and appreciation of the fact that these research activities often represent different means to the same ends, namely sound theoretical foundations and efficient computation. The book begins with a discussion of (...) the various types of nonmonotonic reasoning, their applications and their logics. Theorem proving techniques for these logics are also described. The following chapters deal with formulations of nonmonotonic inheritance, and nonmonotonic reasoning based on nonmonotonic rules. The final chapter discusses the achievements in the field in the light of the Yale shooting example. The book will be welcomed by researchers in theoretical computer science and artificial intelligence. (shrink)

This iconoclastic book demonstrates that irrationality exists on a startling and hitherto unsuspected scale, analysing its causes in detail by drawing on many fascinating psychological experiments. Its theme is illustrated by descriptions of scores of irrational decisions taken by soi-disant experts such as generals, doctors and civil servants: their errors demonstrate the high cost of irrationality to society. The author also discusses the broader social and emotional causes of irrationality, and its roots in our evolutionary history and the structure of (...) our brains. He devotes a remarkable chapter to the current obsession with the paranormal, one of the most clear cut manifestations of contemporary irrationality. Each chapter ends with brief precepts showing how to avoid the types of irrationality set out within it. (shrink)

This book examines two questions: Do people make use of abstract rules such as logical and statistical rules when making inferences in everyday life? Can such abstract rules be changed by training? Contrary to the spirit of reductionist theories from behaviorism to connectionism, there is ample evidence that people do make use of abstract rules of inference -- including rules of logic, statistics, causal deduction, and cost-benefit analysis. Such rules, moreover, are easily alterable by instruction as it occurs in classrooms (...) and in brief laboratory training sessions. The fact that purely formal training can alter them and that those taught in one content domain can "escape" to a quite different domain for which they are also highly applicable shows that the rules are highly abstract. The major implication for cognitive science is that people are capable of operating with abstract rules even for concrete, mundane tasks; therefore, any realistic model of human inferential capacity must reflect this fact. The major implication for education is that people can be far more broadly influenced by training than is generally supposed. At high levels of formality and abstraction, relatively brief training can alter the nature of problem-solving for an infinite number of content domains. (shrink)

We talk about irrationality when behaviour defies explanation or prediction, when decisions are driven by emotions or instinct rather than by reflection, when reasoning fails to conform to basic principles of logic and probability, and when beliefs lack coherence or empirical support. Depending on the context, agents exhibiting irrational behaviour may be described as foolish, ignorant, unwise or even insane. -/- In this clear and engaging introduction to current debates on irrationality, Lisa Bortolotti presents the many facets of the concept (...) and offers an original account of the importance of judgements of irrationality as value judgements. The book examines the standards against which we measure human behaviour, and reviews the often serious implications of judgements of irrationality for ethics and policy. Bortolotti argues that we should adopt a more critical stance towards accepted standards of rationality in the light of the often surprising outcomes of philosophical inquiry and cognitive science research into decision making. -/- Irrationality is an accessible guide to the concept and will be essential reading for students and scholars interested in the limitations of human cognition and human agency. (shrink)

<P>Experimental philosophy is one of the most active and exciting areas in philosophy today. In <EM>Current Controversies in Experimental Philosophy</EM>, Elizabeth O’Neill and Edouard Machery have brought together twelve leading philosophers to debate four topics central to recent research in experimental philosophy. The result is an important and enticing contribution to contemporary philosophy which thoroughly reframes traditional philosophical questions in light of experimental philosophers’ use of empirical research methods, and brings to light the lively debates within experimental philosophers’ intellectual community. (...) Two papers are dedicated to the following four topics:</P> <P></P> <UL> <LI>Language (Edouard Machery & Genoveva Martí)</LI> <LI>Consciousness (Brian Fala, Adam Arico, and Shaun Nicols & Justin Sytsma)</LI> <LI>Free Will and Responsibility (Joshua Knobe & Eddy Nahmias and Morgan Thompson)</LI> <LI>Epistemology and the Reliability of Intuitions (Kenneth Boyd and Jennifer Nagel & Joshua Alexander and Jonathan Weinberg).</LI></UL> <P></P> <P>Preliminary descriptions of each chapter, annotated bibliographies for each controversy, and a supplemental guide to further controversies in experimental philosophy (with bibliographies) help provide clearer and richer views of these live controversies for all readers.</P> <P></P> <P> </P>. (shrink)

Experimental Philosophy: Volume 2 contains fourteen articles -- thirteen previously published and one new -- that reflect the fast-moving changes in the field over the last five years. The field of experimental philosophy is one of the most innovative and exciting parts of the current philosophical landscape; it has also engendered controversy. Proponents argue that philosophers should employ empirical research, including the methods of experimental psychology, to buttress their philosophical claims. Rather than armchair theorizing, experimental philosophers should go into the (...) field to research how people actually think and reason. In a sense this is a return to a view of philosophy as the progenitor of psychology: inherently concerned with the human condition, with no limits to its scope or methods. In the course of the last decade, many experimental philosophers have overturned assumptions about how people think in the real world. This volume provides an essential guide to the most influential recent work on this vital and exciting area of philosophical research. (shrink)

The Cambridge Handbook of Thinking and Reasoning is the first comprehensive and authoritative handbook covering all the core topics of the field of thinking and ...

Two lines of evidence indicate that there exists a reciprocal inhibitory relationship between opposed brain networks. First, most attention-demanding cognitive tasks activate a stereotypical set of brain areas, known as the task-positive network and simultaneously deactivate a different set of brain regions, commonly referred to as the task negative or defaultmode network. Second, functional connectivity analyses show that these same opposed networks are anti-correlated in the resting state. Wehypothesize that these reciprocally inhibitory effects reflect two incompatible cognitive modes, each of (...) which may be directed towards understanding the external world. Thus, engaging onemode activates one set of regions and suppresses activity in the other.Wetest this hypothesis by identifying two types of problem-solving task which, on the basis of prior work, have been consistently associated with the task positive and task negative regions: tasks requiring social cognition, i.e., reasoning about the mental states of other persons, and tasks requiring physical cognition, i.e., reasoning about the causal/mechanical properties of inanimate objects. Social and mechanical reasoning tasks were presented to neurologically normal participants during fMRI. Each task type was presented using both text and video clips. Regardless of presentation modality, we observed clear evidence of reciprocal suppression: social tasks deactivated regions associated with mechanical reasoning and mechanical tasks deactivated regions associated with social reasoning. These findings are not explained by self-referential processes, task engagement, mental simulation,mental time travel or external vs. internal attention, all factors previously hypothesized to explain default mode network activity. Analyses of resting state data revealed a close match between the regions our tasks identified as reciprocally inhibitory and regions of maximal anti-correlation in the resting state. These results indicate the reciprocal inhibition is not attributable to constraints inherent in the tasks, but is neural in origin. Hence, there is a physiological constraint on our ability to simultaneously engage two distinct cognitive modes. Furtherwork is needed tomore precisely characterize these opposing cognitive domains. (shrink)

Do epistemic intuitions tell us anything about knowledge? Stich has argued that we respond to cases according to our contingent cultural programming, and not in a manner that tends to reveal anything significant about knowledge itself. I’ve argued that a cross-culturally universal capacity for mindreading produces the intuitive sense that the subject of a case has or lacks knowledge. This paper responds to Stich’s charge that mindreading is cross-culturally varied in a way that will strip epistemic intuitions of their evidential (...) value. I argue that existing work on cross-cultural variation in mindreading favors my position over Stich’s. (shrink)

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The following values have no corresponding Zotero field: PB - Lawrence Erlbaum Associates Inc Mahwah, NJ.

The following values have no corresponding Zotero field: PB - J. Wiley Chichester,, UK.

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This chapter addresses the issue of the underrepresentation of women in philosophy by presenting an account regarding gender differences in philosophical institutions. It begins with an analysis of data on the gender gap in academic philosophy; followed by a discussion about the term “intuition,”as well as the tendency to appeal to intuitions during philosophical arguments. It then presents empirical data about gender differences derived from a series of experiments such as a Gettier-style case study of Christina Starmans and Ori Friedman, (...) a philosophical thought experiment of Geoffrey Holtzman, and one of David Pizarro about moral responsibility and causal deviance, among others; one hypothesis derived from these studies pertains to the distinct differences between women and mens' intuitions regarding philosophy, with the instructors deciding that the mens' are more correct. (shrink)

The phenomenology of a priori intuition is explored at length (where a priori intuition is taken to be not a form of belief but rather a form of seeming, specifically intellectual as opposed to sensory seeming). Various reductive accounts of intuition are criticized, and Humean empiricism (which, unlike radical empiricism, does admit analyticity intuitions as evidence) is shown to be epistemically self-defeating. This paper also recapitulates the defense of the thesis of the Autonomy and Authority of Philosophy given in the (...) author’s “A Priori Knowledge and the Scope of Philosophy” (Philosophical Studies, 1996). (shrink)

The first section introduces a distinction between 2 families of cognitive operations, called System 1 and System 2. The second section presents an attribute-substitution model of heuristic judgment, which elaborates and extends earlier treatments of the topic. The third section introduces a research design for studying attribute substitution. The fourth section discusses the controversy over the representativeness heuristic. The last section situates representativeness within a broad family of prototype heuristics, in which properties of a prototypical exemplar dominate global judgments concerning (...) an entire set. (shrink)

The psychological and neurobiological processes underlying moral judgement have been the focus of many recent empirical studies1–11. Of central interest is whether emotions play a causal role in moral judgement, and, in parallel, how emotion-related areas of the brain contribute to moral judgement. Here we show that six patients with focal bilateral damage to the ventromedial prefrontal cortex (VMPC), a brain region necessary for the normal generation of emotions and, in particular, social emotions12–14, produce an abnor- mally ‘utilitarian’ pattern of (...) judgements on moral dilemmas that pit compelling considerations of aggregate welfare against highly emotionally aversive behaviours (for example, having to sacrifice one person’s life to save a number of other lives)7,8. In contrast, the VMPC patients’ judgements were normal in other classes of moral dilemmas. These findings indicate that, for a selective set of moral dilemmas, the VMPC is critical for normal judgements of right and wrong. The findings support a necessary role for emotion in the generation of those judgements. (shrink)

The program of research now known as the heuristics and biases approach began with a study of the statistical intuitions of experts, who were found to be excessively confident in the replicability of results from small samples. The persistence of such systematic errors in the intuitions of experts implied that their intuitive judgments may be governed by fundamentally different processes than the slower, more deliberate computations they had been trained to execute. The ancient idea that cognitive processes can be partitioned (...) into two main families--traditionally called intuition and reason--is now widely embraced under the general label of dual-process theories. Dual-process models come in many flavors, but all distinguish cognitive operations that are quick and associative from others that are slow and governed by rules. To represent intuitive and deliberate reasoning, we borrow the terms "system 1" and "system 2" from Stanovich and West. In the following section, we present an attribute-substitution model of heuristic judgment, which assumes that difficult questions are often answered by substituting an answer to an easier one. Following sections introduce a research design for studying attribute substitution, as well as discuss the controversy over the representativeness heuristic in the context of a dual-system view that we endorse. The final section situates representativeness within a broad family of prototype heuristics, in which properties of a prototypical exemplar dominate global judgments concerning an entire set. (shrink)

There is a venerable philosophical tradition that views human beings as intrinsically rational, though even the most ardent defender of this view would admit that under certain circumstances people’s decisions and thought processes can be very irrational indeed. When people are extremely tired, or drunk, or in the grip of rage, they sometimes reason and act in ways that no account of rationality would condone. About thirty years ago, Amos Tversky, Daniel Kahneman and a number of other psychologists began reporting (...) findings suggesting much deeper problems with the traditional idea that human beings are intrinsically rational animals. What these studies demonstrated is that even under quite ordinary circumstances where fatigue, drugs and strong emotions are not factors, people reason and make judgments in ways that systematically violate familiar canons of rationality on a wide array of problems. Those first surprising studies sparked the growth of a major research tradition whose impact has been felt in economics, political theory, medicine and other areas far removed from cognitive science. In Section 2, we will sketch a few of the better known experimental findings in this area. We’ve chosen these particular findings because they will play a role at a later stage of the paper. For readers who would like a deeper and more systematic account of the fascinating and disquieting research on reasoning and judgment, there are now several excellent texts and anthologies available. (shrink)

In recent years, there has been much concern expressed about the under-representation of women in academic philosophy. Our goal in this paper is to call attention to a cluster of phenomena that may be contributing to this gender gap. The findings we review indicate that when women and men with little or no philosophical training are presented with standard philosophical thought experiments, in many cases their intuitions about these cases are significantly different. In section 1 we review some of the (...) data on the under-representation of women in academic philosophy. In section 2 we explain how we use the term 'intuition,' and offer a brief account of how intuitions are invoked in philosophical argument and philosophical theory building. In the third section we set out the evidence for gender differences in philosophical intuition and mention some evidence about gender differences in decisions and behaviors that are (or should be) of considerable interest to philosophers. In the fourth section, our focus changes from facts to hypotheses. In that section we explain how differences in philosophical intuition might be an important part of the explanation for the gender gap in philosophy. The fifth section is a brief conclusion. (shrink)

Most academic efforts to understand morality and ideology come from theorists who constrain the moral domain to issues of harm and fairness. For such theorists, conservative beliefs are puzzles requiring non-moral explanations. In contrast, we present the “five foundations theory of intuitive ethics,” which broadens the moral domain to match the anthropological literature on morality. We extend the theory by integrating it with a review of the sociological constructs of community, authority, and sacredness, as formulated by Emile Durkheim and others. (...) We present data supporting the theory, which also shows that liberals may have a special difficulty in understanding the morality of conservatives. We suggest that what liberals see as a non-moral motivation for system justification may be better described as a moral motivation to protect society, groups, and the structures and constraints that are often (though not always) beneficial for individuals. (shrink)

: Using 1994-1995 and 2002-2003 data, Nieswiadomy found that economics majors scored well on the LSAT. These results are frequently posted on university web sites by Economics and other departments. This note, which updates the prior studies using current 2007-2008 data for the 2008-2009 class of students entering law school, finds that Economics majors still perform at or near the top of all majors taking the test. Economics majors are tied for first of the 12 largest disciplines. Economics is tied (...) for second ) behind Physics/Math in a set of 29 discipline groupings that are created to yield at least 450 students with similar majors. (shrink)

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