Chris Frith has argued that a loss of the sense of agency is central to schizophrenia. This suggests a connection between hallucinations and delusions on the one hand, and the misidentification of the subject’s imaginings as perceptions and beliefs on the other. In particular, understanding the mechanisms that underlie imagination may help us to explain the puzzling phenomena of thought insertion and withdrawal. Frith sometimes states his argument in terms of a loss of metarepresentational capacity in schizophrenia. I argue that (...) this formulation is unhelpful. (shrink)

Simulation Theory says we need not rely exclusively on prepositional knowledge of other minds in order to explain the actions of others. Seeking to know what you will do, I imagine myself in your situation, and see what decision I come up with. I argue that this conception of simulation naturally generalizes: various bits of our mental machine can be run‘off‐line’, fulfilling functions other than those they were made for. In particular, I suggest that visual imagery results when the visual (...) system is run off‐line. I briefly review the empirical evidence and consider the philosophical implications, particularly concerning the mode of mental representation in imagery. (shrink)

W. V. Quine was the most important naturalistic philosopher of the twentieth century and a major impetus for the recent resurgence of the view that empirical science is our best avenue to knowledge. His views, however, have not been well understood. Critics charge that Quine’s naturalized epistemology is circular and that it cannot be normative. Yet, such criticisms stem from a cluster of fundamental traditional assumptions regarding language, theory, and the knowing subject – the very presuppositions that Quine is at (...) pains to reject. Through investigation of Quine’s views regarding language, knowledge, and reality, the author offers a new interpretation of Quine’s naturalism. The naturalism/antinaturalism debate can be advanced only by acknowledging and critiquing the substantial theoretical commitments implicit in the traditional view. Gregory argues that the responses to the circularity and non-normativity objections do just that. His analysis further reveals that Quine’s departure from the tradition penetrates the conception of the knowing subject, and he thus offers a new and engaging defence of Quine’s naturalism. (shrink)

Carnap famously argued that metaphysics unavoidably involves a confusion between science and poetry. Unlike the lyric poet, who does not attempt to make an argument, the metaphysician attempts to make an argument while simultaneously lacking in musical talent. Carnap’s objection that metaphysics unavoidably involves a blend of philosophy and poetry is not a 20th century insight. Plato, in his beautifully crafted Phaedo, presents us with the imprisoned Socrates, who having been condemned to death for practicing philosophy in the Apology, has (...) a dream in which he realizes that he ought to make music. In this dialogue, however, Plato indicates no hint of the scorn that Carnap has for metaphysics—rather Socrates’ friends find him setting Aesop’s fables to verse. In the modern era, Nietzsche re-introduced the ‘music making Socrates’ in his Birth of Tragedy. But Nietzsche is not the first to revive the concept in modern philosophy. Before Nietzsche’s call for a new music-making Socrates, the early German Romantics, in particular Schlegel, explicitly called for the identification of poetry and science in the concept of Poesie. As Schlegel writes: ‘Alle Kunst soll Wissenschaft werden, und alle Wissenschaft Kunst werden; Poesie und Philosophie sollen vereinigt sein.’ On the one hand, in Ion Socrates is not wrong to critique Ion for not knowing the significance of his own work. On the other hand, Socrates himself recognizes in Phaedo that he is guilty of failing to heed the call to make music. Long misunderstood, the Romantic concept of Poesie is not mere irrationalism, for it offers an aesthetic metaphysics of the Absolute. Romanticism is indeed a philosophy of the Absolute, but one which cannot conceive of any solution to the profound impasses that confront philosophical knowing except by learning to make music. (shrink)

Ecologists typically invoke "law-like" generalizations, ranging over "structural" and/or "functional" kinds, in order to explain generalizations about "historical" kinds (such as biological taxa)rather than vice versa. This practice is justified, since structural and functional kinds tend to correlate better with important ecological phenomena than do historical kinds. I support these contentions with three recent case studies. In one sense, therefore, ecology is, and should be, more nomothetic, or law-oriented, than idiographic, or historically oriented. This conclusion challenges several recent philosophical claims (...) about the nature of ecological science. (shrink)

This paper presents statistical default logic, an expansion of classical (i.e., Reiter) default logic that allows us to model common inference patterns found in standard inferential statistics, including hypothesis testing and the estimation of a populations mean, variance and proportions. The logic replaces classical defaults with ordered pairs consisting of a Reiter default in the first coordinate and a real number within the unit interval in the second coordinate. This real number represents an upper-bound limit on the probability of accepting (...) the consequent of an applied default and that consequent being false. A method for constructing extensions is then defined that preserves this upper bound on the probability of error under a (skeptical) non-monotonic consequence relation. (shrink)

The balance of nature concept is an old idea that manifests itself in anumber of forms in population and community ecology. This paper focuseson population ecology, where controversy surrounding the balance ofnature takes the form of perennial debates over the significance ofdensity dependence, population regulation, and species interactions suchas competition. One of the most striking features of these debates, overthe course of the previous century in ecology, is the tendency to arguethe case on largely conceptual grounds. This paper explores twoquestions. (...) Why this tendency to settle on conceptual grounds what is soobviously an empirical issue? Are there any good conceptual arguments tobe had in this area? (shrink)

The article presents the issues arising from the memberships of moral agents in collectives that have the burden of moral responsibility. Likewise, it examines the qualifying actions that qualify their membership including deliberate contribution, risk taking and others. It differentiates collective responsibility to shared responsibility.

In Section IV above we start with texts whose prima facie import speaks so strongly for the Identity Thesis that any interpretation which stops short of it looks like a shabby, timorous, thesis-saving move. What else could Socrates mean when he declares with such conviction that ‘no evil’ can come to a good man (T19), that his prosecutors ‘could not harm’ him (T16(a)), that if a man has not been made more unjust he has not been harmed (T20), that ‘all (...) of happiness is in culture and justice’ (T16(a)), that living well is ‘the same’ as living justly (T15)? But then doubts begin to creep in. Recalling that inflation of the quantifier is normal and innocuous in common speech (“that job means everything to him, he'll do anything to get it, will stick at nothing ”) we ask if there is really no chance at all that ‘no evil’ in T19, ‘not harmed’ in T20 might be meant in the same way? The shift from ‘no harm’ at T16(a) to ‘no great harm’ at T16(b), once noticed, strengthens the doubt. It gets further impetus in T21(b) when to explain how ‘all of happiness is in culture and justice’ he depicts a relation (that recurs more elaborately in T22) which, though still enormously strong, is not quite as strong as would be required by identity. The doubt seeps into T15 when we note that current usage did allow just that relation as a respectable use of ‘the same’. At that point we begin to wonder if resort to the Identity Thesis might not be just a first approximation to a subtler, more finely nuanced, doctrine which would give Socrates as sound a foundation for what we know he wants to maintain at all costs - the Sovereignty of Virtue - without obliterating the eudaemonic value of everything else in his world. We cast about for a credible model of such a relation of virtue to happiness and hit on that multicomponent pattern sketched on p. 9 above. We ascertain that this will afford a comprehensively coherent eudaemonist theory of rational action, while its rival would not, and will fit perfectly a flock of texts in Section V which the latter will not fit at all. Are we not entitled to conclude that this is our best guide to the true relation of virtue to happiness in Socrates' thought - the one for which he would have declared if he had formulated explicitly those two alternative theses and made a reasoned choice between them? (shrink)

Among the most interesting of the controversies in the recent history of parapsychology and related studies is the claim made in 1933 by the psychical researcher Harry Price that the medium Rudi Schneider had on one particular occasion produced his psychic effects by fraudulent means. The background to this event, and the controversy which followed it, are described in detail in this article, which draws on many hitherto unpublished materials. The issues involved range from the design of experiments in an (...) unusual area of science, through the relation between fringe and orthodox science, to the role of popularisers of science and the ethics of science. (shrink)

Recent controversy over the existence of biological laws raises questions about the cognitive aims of theoretical modeling in that science. If there are no laws for successful theoretical models to approximate, then what is it that successful theories do? One response is to regard theoretical models as tools. But this instrumental reading cannot accommodate the explanatory role that theories are supposed to play. Yet accommodating the explanatory function, as articulated by Brandon and Sober for example, seems to involve us once (...) again in a reliance on laws. The paper concludes that we must rethink both the nature of laws and theoretical explanation in biology. (shrink)

There are situations in human life where the failure to perform a certain act can be morally blameworthy and at the same time not constitute the failure of moral duty or obligation. While traditional approaches to ethics have not acknowledged the possibility of these acts, recent contributions to the literature have made a strong and convincing case for their existence. Here I explain the nature of these acts, present some examples of these acts as they might arise in one''s business (...) or professional life, and point out the importance of recognizing and performing these acts for those who wish to practice good ethics in their business or professional lives. (shrink)

Yet, in broader terms, formal epistemology is not merely a methodological tool for epistemologists, but a discipline in its own right. On this programmatic view, formal epistemology is an interdisciplinary research program that covers work by philosophers, mathematicians, computer scientists, statisticians, psychologists, operations researchers, and economists who aim to give mathematical and sometimes computational representations of, along with sound strategies for reasoning about, knowledge, belief, judgment and decision making.

This essay identifies and examines three theses about collective responsibility which are frequently assumed or presupposed in philosophical discussions of collective responsibility. While the first thesis places constraints upon what counts as collective responsibility in a way which is plausible and defensible, It is argued that the constraints placed by theses two and three are unreasonably limiting.

Following the footsteps of scholars who have made contributions to the debate about the question of method and analysis in Fanon’s work, this article explores the implications of his concerns with the link between madness and struggle on our understanding of the transformative role of radical political strategies in the colonial context and the contemporary world. The main argument it pursues is that Fanon regarded madness and revolutionary violence in the colonial context as effects of colonial alienation. Most importantly, this (...) argument sets the article apart from the works which focus on how Fanon’s proto-structuralist analysis of the process of madness and the question of cure reveals his concerns with the conditions for the possibility of a politico-philosophical paradigm or a universal morality in postcolonial time or national liberation time. (shrink)

In this paper, I offer a new defense of scientific realism, tailored for the Akaikean paradigm of statistical hypothesis testing. After proposing definitions of verisimilitude and predictive success, I use computer simulations to show how the latter depends on the former, even in the kind of case featured in a recent argument for instrumentalism.

In this note the claim is defended that Frege was a realist in the sense that he attributed causal efficacy to certain abstract objects. The arguments of Dummett and Sluga (cf. Inquiry, Vols. 18, 19, and 20 [1975–77]) to the contrary are criticized.

Six experiments investigated variables predicted to influence subjects’ tendency to classify items by a single property instead of overall similarity, following the paradigm of Norenzayan et al., who found that European Americans tended to give more “logical” rule-based responses. However, in five experiments with Mechanical Turk subjects and undergraduates at an American university, we found a consistent preference for similarity-based responding. A sixth experiment with Korean undergraduates revealed an effect of instructions, also reported by Norenzayan et al., in which classification (...) instructions led to majority rule-based responding but similarity instructions led to overall similarity grouping. Our American subjects showed no such difference and used similarity more overall. We conclude that Americans do not have a preference for rule responding in classification and discuss the differences between tasks that reliably show strong rule or unidimensional preferences in contrast to this classification paradigm. (shrink)

No one has a well developed solution to Duhem's problem, the problem of how experimental evidence warrants revision of our theories. Deborah Mayo proposes a solution to Duhem's problem in route to her more ambitious program of providing a philosophical account of inductive inference and experimental knowledge. This paper is a response to Mayo's Error Statistics (ES) program, paying particular attention to her response to Duhem's problem. It turns out that Mayo's purported solution to Duhem's problem is very significant to (...) her project, for the epistemic license claimed by ES and the philosophical underpinnings to her account of experimental knowledge depend on this solution. By introducing the partition problem, I argue that ES fails to solve Duhem's problem and therefore fails to provide an adequate account of experimental knowledge. (shrink)

Models of recognition memory have traditionally struggled with the puzzle of criterion setting, a problem that is particularly acute in cases in which items for study and test are of widely varying types, with differing degrees of baseline familiarity and experience (e.g., words vs. random dot patterns). We present a dynamic model of the recognition process that addresses the criterion setting problem and produces joint predictions for choice and reaction time. In this model, recognition decisions are based not on the (...) absolute value of familiarity, but on how familiarity changes over time as features are sampled from the test item. Decisions are the outcome of a race between two parallel accumulators: one that accumulates positive changes in familiarity (leading to an ‘‘old’’ decision) and another that accumulates negative changes (leading to a ‘‘new’’ decision). Simulations with this model make realistic predictions for recognition performance and latency regardless of the baseline familiarity of study and test items. (shrink)

This paper describes the application of eight statistical and machine-learning methods to derive computer models for predicting mortality of hospital patients with pneumonia from their findings at initial presentation. The eight models were each constructed based on 9847 patient cases and they were each evaluated on 4352 additional cases. The primary evaluation metric was the error in predicted survival as a function of the fraction of patients predicted to survive. This metric is useful in assessing a model’s potential to assist (...) a clinician in deciding whether to treat a given patient in the hospital or at home. We examined the error rates of the models when predicting that a given fraction of patients will survive. We examined survival fractions between 0.1 and 0.6. Over this range, each model’s predictive error rate was within 1% of the error rate of every other model. When predicting that approximately 30°K of the patients will survive, all the models have an error rate of less than 1.5%. The models are distinguished more by the number of variables and parameters that they contain than by their error rates; these differences suggest which models may be the most amenable to future implementation as paper-based guidelines. (shrink)

My thesis is that Albert Camus offers key elements of a viable nonmetaphysical, post-secular ethical and political anthropology and explanation of evil. Idefend my thesis in two parts. First, I explicate and analyze Camus’s remarks on human nature and injustice primarily in his political essay The Rebel. Camus offers a nonmetaphysical picture of human nature, inspired by the Greeks, as that out of which rebellion to oppression springs but also as that which frustrates any final resolution to the problems of (...) history. Secondly, I offer a reading of The Fall. I argue that Camus’s depiction of human nature in this work, contrary to typical readings, highlights his appreciation of the insight and pragmatically desirable consequences of the Christian concept of sin. I show thatCamus depicts the possibility of a “healthy” guilt, a guilt linked to the pursuit of freedom and a responsibility to self and to others. (shrink)

Methodological likelihoodism is the view that it is possible to provide an adequate self-contained methodology for science on the basis of likelihood functions alone. I argue that methodological likelihoodism is false by arguing that an adequate self-contained methodology for science provides good norms of commitment vis-a-vis hypotheses, articulating minimal requirements for a norm of this kind, and proving that no purely likelihood-based norm satisfies those requirements.