Under the sway of the postulate of determinism, sociologists (with some exceptions) have given little direct attention to sheerly fortuitous events. Such events are analytically distinguishable from those which are considered the results of chance only because we currently lack knowledge of their causation. Exemplifications of pure chance abound in the various arts and sciences, including sociology (especially in work by symbolic interactionists). Direct, explicit consideration of random, accidental, or chance phenomena requires approaches that emphasize both the processes of behavior (...) and interaction and the case-study method of investigation. (shrink)

Many decisions involve multiple stages of choices and events, and these decisions can be represented graphically as decision trees. Optimal decision strategies for decision trees are commonly determined by a backward induction analysis that demands adherence to three fundamental consistency principles: dynamic, consequential, and strategic. Previous research found that decision-makers tend to exhibit violations of dynamic and strategic consistency at rates significantly higher than choice inconsistency across various levels of potential reward. The current research extends these findings under new conditions; (...) specifically, it explores the extent to which these principles are violated as a function of the planning horizon length of the decision tree. Results from two experiments suggest that dynamic inconsistency increases as tree length increases; these results are explained within a dynamic approach–avoidance framework. (shrink)

Classical (Bayesian) probability (CP) theory has led to an influential research tradition for modeling cognitive processes. Cognitive scientists have been trained to work with CP principles for so long that it is hard even to imagine alternative ways to formalize probabilities. However, in physics, quantum probability (QP) theory has been the dominant probabilistic approach for nearly 100 years. Could QP theory provide us with any advantages in cognitive modeling as well? Note first that both CP and QP theory share the (...) fundamental assumption that it is possible to model cognition on the basis of formal, probabilistic principles. But why consider a QP approach? The answers are that (1) there are many well-established empirical findings (e.g., from the influential Tversky, Kahneman research tradition) that are hard to reconcile with CP principles; and (2) these same findings have natural and straightforward explanations with quantum principles. In QP theory, probabilistic assessment is often strongly context- and order-dependent, individual states can be superposition states (that are impossible to associate with specific values), and composite systems can be entangled (they cannot be decomposed into their subsystems). All these characteristics appear perplexing from a classical perspective. However, our thesis is that they provide a more accurate and powerful account of certain cognitive processes. We first introduce QP theory and illustrate its application with psychological examples. We then review empirical findings that motivate the use of quantum theory in cognitive theory, but also discuss ways in which QP and CP theories converge. Finally, we consider the implications of a QP theory approach to cognition for human rationality. (shrink)

This challenging interdisciplinary collection of essays sets out to find cultural significance and value in America’s post modern society. The book includes analyses of a wide range of contemporary cultural artifacts—poetry, novels, myths, painting, cinematic images—from different vantage points, but especially from the perspective of those working in the area of religion and culture. While the contributors recognize that there are no simple solutions for identifying satisfactory values in today’s society, they all emphasize the close kinship between ethics and aesthetics (...) in their interpretations. Imagery of many sorts comes up for a closer look: the imagery of the anti-abortion movement, heroic and mythic figures, rituals, politics, gender issues, and race relations. Giving voice to “difference” and “the other,” the essays provide a lively discussion about where our common future is headed and how we can remain responsible to values that are beneficial to the largest number of people. _Contributors: William G. Doty, David H. Fisher, Matthew Fox, Stephen Karatheodoris, Gary Kochhar-Lindgren, Hank Lazer, Mark Ledbetter, Irena S. M. Makarushka, Daniel C. Noel, Jerome Rothenberg, Lynda Sexson_. (shrink)

Assistive technology has great potential to contribute to health, functioning, and quality of life. To date, as exemplified in the Canadian context, variations and inequities in access to assistive technology are evident; the development of legislation, policies, and programs has not kept up with the increasing use of assistive technology. In this article, we apply ;Daniels’s (2008) theory of just health to argue that equitable access to assistive technology funding and services is necessary for justice. In doing so, we offer (...) theoretical guidance for the development of legislation, policies, and programs to guide such access in health and social services. (shrink)

This remarkable book is the most comprehensive study ever written of the history of moral philosophy in the seventeenth and eighteenth centuries. Its aim is to set Kant's still influential ethics in its historical context by showing in detail what the central questions in moral philosophy were for him and how he arrived at his own distinctive ethical views. The book is organised into four main sections, each exploring moral philosophy by discussing the work of many influential philosophers of the (...) seventeenth and eighteenth centuries. In an epilogue the author discusses Kant's view of his own historicity, and of the aims of moral philosophy. In its range, in its analyses of many philosophers not discussed elsewhere, and in revealing the subtle interweaving of religious and political thought with moral philosophy, this is an unprecedented account of the evolution of Kant's ethics. (shrink)

In face of the multiple controversies surrounding the DSM process in general and the development of DSM-5 in particular, we have organized a discussion around what we consider six essential questions in further work on the DSM. The six questions involve: 1) the nature of a mental disorder; 2) the definition of mental disorder; 3) the issue of whether, in the current state of psychiatric science, DSM-5 should assume a cautious, conservative posture or an assertive, transformative posture; 4) the role (...) of pragmatic considerations in the construction of DSM-5; 5) the issue of utility of the DSM – whether DSM-III and IV have been designed more for clinicians or researchers, and how this conflict should be dealt with in the new manual; and 6) the possibility and advisability, given all the problems with DSM-III and IV, of designing a different diagnostic system. Part 1 of this article took up the first two questions. Part 2 took up the second two questions. Part 3 now deals with Questions 5 & 6. Question 5 confronts the issue of utility, whether the manual design of DSM-III and IV favors clinicians or researchers, and what that means for DSM-5. Our final question, Question 6, takes up a concluding issue, whether the acknowledged problems with the earlier DSMs warrants a significant overhaul of DSM-5 and future manuals. As in Parts 1 & 2 of this article, the general introduction, as well as the introductions and conclusions for the specific questions, are written by James Phillips, and the responses to commentaries are written by Allen Frances. (shrink)

In the conclusion to this multi-part article I first review the discussions carried out around the six essential questions in psychiatric diagnosis – the position taken by Allen Frances on each question, the commentaries on the respective question along with Frances’ responses to the commentaries, and my own view of the multiple discussions. In this review I emphasize that the core question is the first – what is the nature of psychiatric illness – and that in some manner all further (...) questions follow from the first. Following this review I attempt to move the discussion forward, addressing the first question from the perspectives of natural kind analysis and complexity analysis. This reflection leads toward a view of psychiatric disorders – and future nosologies – as far more complex and uncertain than we have imagined. (shrink)

According to many realist philosophers of fiction, one needs to posit an ontology of existing fictional characters in order to give a correct account of discourse about fiction. The realists' claim is opposed by pretense theorists for whom discourse about fiction involves, as discourse in fiction, pretense. On that basis, pretense theorists claim that one does not need to embrace an ontology of fictional characters to give an account of discourse about fiction. The ontolog-ical dispute between realists and pretense theorists (...) is mainly a dispute in the realm of the phi-losophy of language concerning the status relative to pretense of discourse about fiction. Realists are persuaded that there is a sharp line between discourse in fiction and discourse about fiction while pretense theorists deny there exists such a line. I suggest that realists may have a wrong picture of discourse in fiction since, in many cases, discourse in fiction already contains many occurrences of discourse about fiction. Consequently, discourse about fiction, instead of ending fiction, should be regarded, following pretense theorists, as adding extra lay-ers of fiction. (shrink)

In ‘Rethinking Disease’, Powell and Scarffe1 propose what in effect is a modification of Jerome Wakefield’s2 3 harmful dysfunction analysis of medical disorder. The HDA maintains that ‘disorder’ is a hybrid factual and value concept requiring that a biological dysfunction, understood as a failure of some feature to perform a naturally selected function, causes harm to the individual as evaluated by social values. Powell and Scarffe accept both the HDA’s evolutionary biological function component and its incorporation of a value (...) component. Their proposed ‘new twist’ is to revise the value component: ‘Our proposed definition of disease is as follows: a biomedical state is a disease only if it implicates a biological dysfunction that is, or would be, properly disvalued’. So, they propose that a disorder is a ‘properly disvalued dysfunction’ rather than a ‘harmful dysfunction’, an approach they term ‘thickly normative’ in contrast to the thin normative approach of the HDA. There has been a surge of interest recently in better understanding the ‘harm’ component of the HDA. Powell and Scarffe’s analysis is a helpful contribution to this discussion. We focus here exclusively on their proposal regarding the analysis of the concept of disorder and ignore many important related issues that the authors address, ranging from prioritising resource allocation between disorders and non-disorders to whether the concept of disorder should be replaced by a generic welfarist concept. The resolution of these additional issues depends on first understanding ‘disorder’. The authors’ proposed changes to the HDA also deserve evaluation because the HDA, which has been endorsed by leading nosologists,4 plays an influential role in nosological debate across categories of disorder ranging, for example, from sexual paraphilias5 to psychopathy.6 A basic problem is that Powell and Scarffe misinterpret …. (shrink)

Following Meinong, many philosophers have been attracted by the view that emotions have intrinsically evaluative correctness conditions. On one version of this view, emotions have evaluative contents. On another version, emotions are evaluative attitudes; they are evaluative at the level of intentional mode rather than content. We raise objections against the latter version, showing that the only two ways of implementing it are hopeless. Either emotions are manifestly evaluative or they are not. In the former case, the Attitudinal View threatens (...) to collapse into the Perception View or any other view according to which emotions are evaluative at the level of content. In the latter case, the Attitudinal View does not stand up to an obvious alternative, namely that emotions can only be assessed with respect to extrinsic norms or conditions of correctness. (shrink)

The aim of this paper is to study anomalies of self- and world-experience in schizophrenia from a phenomenological perspective, through the use of the EASE and the EAWE interviews. Four patients with diagnoses of schizophrenia were interviewed with both EASE and EAWE. A qualitative analysis of these interviews was carried out on all the data; quantitative scores were also assigned based on the frequency and intensity of items endorsed by the subjects. For the EASE, subjects endorsed an average frequency of (...) 45% of all items. For the EAWE, subjects endorsed an average frequency of 26% of all items. Furthermore, EAWE data indicated more heterogeneous profiles of experience than the EASE. This heterogeneity is not surprising, given that the EAWE was designed to be a more broad-based or less targeted exploration of various changes likely to be associated with schizophrenia spectrum. Our data suggest that, although disturbances of world experience may always be present in schizophrenia, they may take numerous and varied forms. Because the experience of the world occurs across many different modalities, disturbances of this experience would be fundamentally less unitary, whereas the experience of the self present a more coherent and unitary gestalt. These results show certain overlapping between the scales while also indicating the potential value of combined use of the two instruments. Finally, we discussed the relationship between experiential description and behavioral observation, and their potentially complementary value in exploring the first-person perspective, particular in the case of experiences that occur at a more pre-reflective level. (shrink)

We report the identification of a recurrent, 520-kb 16p12.1 microdeletion associated with childhood developmental delay. The microdeletion was detected in 20 of 11,873 cases compared with 2 of 8,540 controls and replicated in a second series of 22 of 9,254 cases compared with 6 of 6,299 controls. Most deletions were inherited, with carrier parents likely to manifest neuropsychiatric phenotypes compared to non-carrier parents. Probands were more likely to carry an additional large copy-number variant when compared to matched controls. The clinical (...) features of individuals with two mutations were distinct from and/or more severe than those of individuals carrying only the co-occurring mutation. Our data support a two-hit model in which the 16p12.1 microdeletion both predisposes to neuropsychiatric phenotypes as a single event and exacerbates neurodevelopmental phenotypes in association with other large deletions or duplications. Analysis of other microdeletions with variable expressivity indicates that this two-hit model might be more generally applicable to neuropsychiatric disease. © 2010 Nature America, Inc. All rights reserved. (shrink)

This initial volume in a series of new translations of Plato’s works includes a general introduction and interpretive comments for the dialogues translated: the _Euthyphro, Apology, Crito, Meno, Gorgias, _and _Menexenus. _ _ _“Allen’s work is very impressive. The translations are readable, lucid, and highly accurate. The general introduction is succinct and extremely clear. The discussion of the dating of the dialogues is enormously useful; there has previously been no brief account of these issues to which one could refer the (...) student. Finally, the particular introductions are first rate: fine jobs of clear philosophical and historical explanation—succinct and yet sophisticated, both close to the text and philosophically incisive.”—Martha Nussbaum, _Brown University_ “This is an important work that deserves our respect and attention.”—_Ethics _ _ _“This and the promised succeeding volumes will probably become the standard English version of the complete dialogues…. The commentaries take advantage of the best scholarship, judge judiciously between divergent views, and often introduce new and brilliant interpretations. This is true both in the area of philosophy and in that of literary criticism.”—Anthony C. Daly, S.J., _Modern Schoolman_ _ _“Allen is a superb translator, whose elegantly simple yet precise language gives access to Plato both as a philosopher and as a literary artist.”—_Library Journal__ _ “An important event in the world of scholarship.”—_London Review of Books_ _ _R.E. Allen is professor of classics and philosophy at Northwestern University. (shrink)

We all know that doctors accept gifts from drug companies, ranging from pens and coffee mugs to free vacations at luxurious resorts. But as the former Editor-in-Chief of The New England Journal of Medicine reveals in this shocking expose, these innocuous-seeming gifts are just the tip of an iceberg that is distorting the practice of medicine and jeopardizing the health of millions of Americans today. In On the Take, Dr. Jerome Kassirer offers an unsettling look at the pervasive payoffs (...) that physicians take from big drug companies and other medical suppliers, arguing that the billion-dollar onslaught of industry money has deflected many physicians' moral compasses and directly impacted the everyday care we receive from the doctors and institutions we trust most. Underscored by countless chilling untold stories, the book illuminates the financial connections between the wealthy companies that make drugs and the doctors who prescribe them. Kassirer details the shocking extent of these financial enticements and explains how they encourage bias, promote dangerously misleading medical information, raise the cost of medical care, and breed distrust. Among the questionable practices he describes are: the disturbing number of senior academic physicians who have financial arrangements with drug companies; the unregulated "front" organizations that advocate certain drugs; the creation of biased medical education materials by the drug companies themselves; and the use of financially conflicted physicians to write clinical practice guidelines or to testify before the FDA in support of a particular drug. A brilliant diagnosis of an epidemic of greed, On the Take offers insight into how we can cure the medical profession and restore our trust in doctors and hospitals. (shrink)

Hume's Reception in Early America: Expanded Edition brings together the original American responses to one of Britain's greatest men of letters, David Hume. Now available as a single volume paperback, this new edition includes updated further readings suggestions and dozens of additional primary sources gathered together in a completely new concluding section. From complete pamphlets and booklets, to poems, reviews, and letters, to extracts from newspapers, religious magazines and literary and political journals, this book's contents come from a wide variety (...) of sources published in colonial America and the early United States between 1758 and 1850. As well as classics by Thomas Jefferson, John Adams and Alexander Hamilton, it contains scores of unknown and hard-to-locate items, many of which have not been reprinted since their original publication. These responses are divided into four parts covering Hume's Essays; his Philosophical Writings; his History of England; and his Character and Death. Each of those parts has a separate introductory essay, and every selection is introduced by a short headnote that sets the piece in its historical context and provides bibliographical references. Packed with new insights into Hume and American thought and culture, Hume's Reception in Early America reveals the relevance and impact of Hume on American political, philosophical, historical, religious, and aesthetic debates. (shrink)

In this expanded edition, an accomplished physician and teacher of medicine discusses the importance of being a caring doctor, especially now that the focus of medicine is increasingly on technological innovation and health care costs. With wisdom and compassion, Dr. Jerome Lowenstein tells stories about relationships between medical students and their teachers, physicians and their patients. He reflects on what doctors learn from treating chronic illness; how they respond to patients' needs for reassurance; how they bear the burden of (...) treating patients with life-threatening or degenerative disease; whether the distinction between traditional and "alternative" medical treatment is ultimately beneficial or destructive; and many other issues. Dr. Lowenstein's ruminations on humanistic approaches to learning and practicing medicine will be treasured by physicians, medical students, and patients alike. (shrink)

© 2017. The American Astronomical Society. All rights reserved.We present new observations of the low-mass companion to HD 984 taken with the Gemini Planet Imager as a part of the GPI Exoplanet Survey campaign. Images of HD 984 B were obtained in the J and H bands. Combined with archival epochs from 2012 and 2014, we fit the first orbit to the companion to find an 18 au orbit with a 68% confidence interval between 14 and 28 au, an eccentricity (...) of 0.18 with a 68% confidence interval between 0.05 and 0.47, and an inclination of 119°with a 68% confidence interval between 114°and 125°. To address the considerable spectral covariance in both spectra, we present a method of splitting the spectra into low and high frequencies to analyze the spectral structure at different spatial frequencies with the proper spectral noise correlation. Using the split spectra, we compare them to known spectral types using field brown dwarf and low-mass star spectra and find a best-fit match of a field gravity M6.5 ±1.5 spectral type with a corresponding temperature of K. Photometry of the companion yields a luminosity of log=2.88 ± 0.07 dex with DUSTY models. Mass estimates, again from DUSTY models, find an age-dependent mass of 34 ±1 to 95 ±4 M Jup. These results are consistent with previous measurements of the object. (shrink)

Reflections on Medicine is a rich sampling of 70 essays from a collection of more than 300 essays Robert Massey wrote for Connecticut Medicine: The Journal of the Connecticut State Medical Society, between 1973 and 2005. It is an elegant buffet of the thoughts and observations of a remarkable man. In his foreword to the book, Sherwin Nuland writes: "he applied his massive erudition to so many [other] themes, universal and specific—he accepted the uncertainty of human wisdom and even knowledge, (...) recognizing that it is for each generation to look anew at dilemmas both modern and ancient" (p. ix). In fact, there are countless references to the writings of Albert Schweitzer, T. S. Eliot, Mark Twain, and Lewis Thomas .. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:What Makes a Mental Disorder Mental?Jerome C. Wakefield (bio)Keywordsharmful dysfunction, mental disorder, intentionality, mental dysfunction, mental functioning, phenomenality, somatic disorderWhat makes a medical disorder mental rather than (exclusively) somatic or physical? Psychiatry to some extent depends for its existence as a medical specialty on the distinction between mental and somatic disorders, yet the history of this distinction presents a bewildering array of puzzling judgments, radical shifts, and seemingly (...) arbitrary distinctions. The historical observation that putative mental disorders are often reclassified as physical disorders as soon as their physiologic basis is understood further confuses matters. Moreover, recent debates about such classifications often seem to reflect desires to protect professional turf or obtain optimal reimbursement for treatment more than they do the application of a coherent conceptual distinction. No wonder that Brülde and Radovic (2006) disarmingly admit at the outset of their exploration of this question that there is a case to be made that their topic is relatively unimportant or even meaningless intellectually, a rare way to start an inquiry!Could there nonetheless be a cogent conceptual distinction lurking here? Brülde and Radovic usefully invite us to reframe the question, in effect as follows: Suppose we pay attention to professional and lay judgments as evidence but at the same time try to avoid being ensnared by the distortions resulting from turf issues and other pragmatic motives and constraints. Can we then identify some principled distinction in this domain that is worth making and that interestingly corresponds to the distinction generally made between mental disorders and strictly somatic disorders? Brülde and Radovic do not come to any confident or compelling conclusion about this.My answer, based on my harmful dysfunction analysis of disorder (Wakefield, 1992a, 1992b, 1999a, 1999b), is that a mental disorder is a harmful mental dysfunction, where a mental dysfunction is a failure of the capacity of some mental mechanism to perform a function for which it was biologically designed. I argue that, owing to a series of logical missteps, Brülde and Radovic needlessly reject this view. After some preliminary comments and clarifications, I defend the internal dysfunction approach from the objections posed by Brülde and Radovic, and then conclude by elaborating this view in some new ways. Note that Brülde and Radovic critique something they call the "internal cause view" of what makes a disorder mental, and they name others who hold that view. However, my work figures prominently in their discussion, and for expository simplicity, I will presume to simply construe their arguments as aimed at the harmful dysfunction analysis. [End Page 123]Clarifying the QuestionIt is easy to misconstrue the question "What makes a mental disorder mental" as demanding a precise account of the mental, an error to which Brülde and Radovic succumb in their repeated complaints that various writers do not present principled accounts of the mental but rely on lists of prototypical mental states or tentative guidelines to fix the reference of mental. We would need a precise definition of mental if the problem were how to classify cases in which it is ambiguous whether some phenomenon is mental or physical. We might imagine, for example, someone being genuinely puzzled as to whether inability to sleep is failure of a mental function or process. But this sort of puzzle about the boundaries of the mental is not the problem with which Brülde and Radovic are concerned; anyway, ambiguous cases may just be inherently ambiguous. The problem, which a crisp definition of mental will not resolve, is what relation mental states or mechanisms must have to a disorder to make it a mental disorder; must there be mental symptoms, or mental dysfunctions, or either one, and so on? But, even if a precise resolution of the nature of the mental is not needed, some notion of the mental domain is essential in pursuing this discussion. We can pick out the mental ostensively, by pointing to lots of examples (e.g., perception, motivation, emotion, thought, and sensation) much more confidently than we can define it in a principled way. But because Brülde and Radovic find fault in such ostensive reference fixing, let me... (shrink)

In 1959 C. P. Snow delivered his now-famous Rede Lecture, 'The Two Cultures,' a reflection on the academy based on the premise that intellectual life was divided into two cultures: the arts and humanities on one side and science on the other. Since then, a third culture, generally termed 'social science' and comprised of fields such as sociology, political science, economics, and psychology, has emerged. Jerome Kagan's book describes the assumptions, vocabulary, and contributions of each of these cultures and (...) argues that the meanings of many of the concepts used by each culture are unique to it and do not apply to the others because the source of evidence for the term is special. The text summarizes the contributions of the social sciences and humanities to our understanding of human nature and questions the popular belief that biological processes are the main determinant of variation in human behavior. (shrink)

In face of the multiple controversies surrounding the DSM process in general and the development of DSM-5 in particular, we have organized a discussion around what we consider six essential questions in further work on the DSM. The six questions involve: 1) the nature of a mental disorder; 2) the definition of mental disorder; 3) the issue of whether, in the current state of psychiatric science, DSM-5 should assume a cautious, conservative posture or an assertive, transformative posture; 4) the role (...) of pragmatic considerations in the construction of DSM-5; 5) the issue of utility of the DSM - whether DSM-III and IV have been designed more for clinicians or researchers, and how this conflict should be dealt with in the new manual; and 6) the possibility and advisability, given all the problems with DSM-III and IV, of designing a different diagnostic system. Part I of this article will take up the first two questions. With the first question, invited commentators express a range of opinion regarding the nature of psychiatric disorders, loosely divided into a realist position that the diagnostic categories represent real diseases that we can accurately name and know with our perceptual abilities, a middle, nominalist position that psychiatric disorders do exist in the real world but that our diagnostic categories are constructs that may or may not accurately represent the disorders out there, and finally a purely constructivist position that the diagnostic categories are simply constructs with no evidence of psychiatric disorders in the real world. The second question again offers a range of opinion as to how we should define a mental or psychiatric disorder, including the possibility that we should not try to formulate a definition. The general introduction, as well as the introductions and conclusions for the specific questions, are written by James Phillips, and the responses to commentaries are written by Allen Frances. (shrink)

Jérôme Ravat | : Cet article vise à souligner la place centrale qu’occupe l’analogie au sein de l’éthique animale, à la fois d’un point de vue descriptif, explicatif et normatif. Nous montrons que l’analogie joue un rôle décisif dans la compréhension du statut moral de l’animal, puisqu’elle permet d’éclairer ce qui est moins connu à partir de ce qui est plus connu. Nous soulignerons le fait que l’analogie revêt deux fonctions significatives : une fonction critique et une fonction intégratrice. Nous (...) montrons également que l’analogie, en vertu de sa dimension interprétative, suscite également de nombreux désaccords, et produit des représentations morales divergentes de l’animal. | : This paper aims at emphasizing the key role played by analogy in animal ethics, from a descriptive, explicative, and normative point of view. I show that analogy is decisive for the understanding of animals’ moral status, since it can shed light on the unknown thanks to what is known. I will emphasize that analogy has two significant functions: a critical function and an integrative function. Furthermore, I demonstrate that analogy, because of its interpretative dimension, begets many disagreements and produces divergent moral conceptions of animals. (shrink)

Our utterances are typically if not always "situated," in the sense that they are true or false relative to unarticulated parameters of the extra-linguistic context. The problem is to explain how these parameters are determined, given that nothing in the uttered sentences indicates them. It is tempting to claim that they must be determined at the level of thought or intention. However, as many philosophers have observed, thoughts themselves are no less situated than utterances. Unarticulated parameters need not be mentally (...) represented. In this paper, I try to make precise the notion of representation at stake here. In one sense of 'representation', something is represented if it is inferentially relevant. In another, less demanding sense, something is represented if it is relevant to the construction of a context-sensitive, ad hoc concept. Ad hoc concepts act as "proxies" for cognitively more demanding representations. They "imitate" the latter's epistemic and pragmatic roles while being inferentially less sophisticated. Thus, there are two senses in which a thought can be said to be situated: (1) its truth-value is relative to a non-represented contextual parameter, (2) its truth-value is not itself relative, but it involves a context-sensitive, ad hoc concept. (shrink)