This study explored possible deficits in selective attention brought about by Dementia of Alzheimer Type (DAT). In three experiments, we tested patients with early DAT, healthy elderly, and young adults under low memory demands to assess perceptual filtering, conflict resolution, and set switching abilities. We found no evidence of impaired perceptual filtering nor evidence of impaired conflict resolution in early DAT. In contrast, early DAT patients did exhibit a global cost in set switching consistent with an inability to maintain the (...) goals of the task (mental set). We discuss these findings in relation to the DAT literature on executive attention, dual-tasking, and working memory. Ó 2007 Elsevier Inc. All rights reserved. (shrink)
By combining a flanker task and a cuing task into a single paradigm, the authors assessed the effects of orienting and alerting on conflict resolution and explored how normal aging and Alzheimer’s disease (AD) modulate these attentional functions. Orienting failed to enhance conflict resolution; alerting was most beneficial for trials without conflict, as if acting on response criterion rather than on information processing. Alerting cues were most effective in the older groups— healthy aging and AD. Conflict resolution was impaired only (...) in AD. Orienting remained unchanged across groups. These findings provide evidence of different life span developmental and clinical trajectories for each attentional network. (shrink)
I defend a sensitive neo-Moorean invariantism, an epistemological account with the following characteristic features: (a) it reserves a place for a sensitivity condition on knowledge, according to which, very roughly, S’s belief that p counts as knowledge only if S wouldn’t believe that p if p were false; (b) it maintains that the standards for knowledge are comparatively low; and (c) it maintains that the standards for knowledge are invariant (i.e., that they vary neither with the linguistic context of the (...) subject of knowledge nor with the linguistic context of the attributor of knowledge). I argue that this sort of account allows us to respond adequately to some difficult puzzles in epistemology, puzzles such as skeptical puzzles, as well as puzzles that inspire epistemological contextualism. I also maintain that by utilizing what Keith DeRose calls a warranted assertibility maneuver, sensitive neo-Moorean invariantism can account for our epistemic judgments in each of these puzzle cases. (shrink)
Much of our work with enriched experience and training in animals supports the Quartz & Sejnowski (Q&S) thesis that environmental information can interact with pre-existing neural structures to produce new synapses and neural structure. However, substantial data as well as an evolutionary perspective indicate that multiple information-capture systems exist: some are constructivist, some are selectionist, and some may be tightly constrained.
2) Philosophy in an important sense has no special subject-matter which stands to it as other subject-matters stand to other special disciplines…. What is characteristic of philosophy is not a special subject-matter, but the aim of knowing one’s way around with respect to the subject-matters of all the special disciplines. [370] [BB: It is not clear how this sits with the distinction between being a researcher (in a special discipline) and being an intellectual (caring about how it all fits together). (...) For, surely, not all intellectuals are philosophers, nor vice versa. One possibility is that he thinks that our research specialty is being intellectuals. But this is not plausible: sociologists, historians, journalist-pundits, culture critics, and so on have an equal claim to that distinction. WS might be thinking of philosophers as exclusively concerned with the cognitive enterprise, allowing intellectuals more generally to worry about, e.g., politics. But this is a pre- Hegelian way of thinking about things that is very implausible. I have my own take on this (cf. “Reason, Expression, and the Philosophic Enterprise”, Ch. 4 of RiP).]. (shrink)
Feminist, critical race, and postcolonial theories have established that social identities such as race and gender are mutually constitutive—i.e., that they “intersect.” I argue that “cultural appropriation” is never merely the appropriation of culture, but also of gender, sexuality, class, etc. For example, “white hipness” is the appropriation of stereotypical black masculinity by white males. Looking at recent videos from black male hip-hop artists, I develop an account of “postmillennial black hipness.” The inverse of white hipness, this (...) practice involves the appropriation, by black men, of stereotypical white gay masculinity and/or non-American, non-white femininity. I also argue that Shephard Fairey’s recent images of (mainly militant) non-Western women of color can be read as a new form of white hipness that revises the traditional logic in two ways: (1) by appropriating non-white femininity rather than masculinity, and (2) by adopting the practice of postmillennial black hipness itself. (shrink)
This article reports on a study of interaction between Americans who self-identify as Black and White that reveals underlying expectations with regard to conversation that differ between the two groups. These differences seem not to have much to do with class or gender, but rather vary largely according to self-identification by "race." The argument of this paper will be that the social phenomena of "race" are constructed at the level of interaction whenever Americans self-identified as Black and White (...) speak to one another. This is because the Interaction Order expectations with regard to both self and community vary between the two groups. Because the "language games" and conversational "preferences" practiced by the two groups are responsive to different Interaction Orders, the "working consensus" is substantially different, and as a consequence, conversational "moves" are not recognizably the same. It will be argued that a great deal of institutional discrimination against African Americans can be traced to this source. (shrink)
Existence in Black is the first collective statement on the subject of Africana Philosophy of Existence. Drawing upon resources in Africana philosophy and literature, the contributors explore some of the central themes of Existentialism as posed by the context of what Frantz Fanon has identified as "the lived-experience of the black." Among questions posed and explored in the volume are: What is to be done in a world of near universal sense of superiority to, if not universal hatred (...) of, black folk?; What is black suffering?; What is the meaning (if any) of black existence? The introduction argues that a response to these questions requires a journey through the resources of identity questions in critical race theory and the teleological dimensions of liberation theory. The contributors address these questions through an analysis of nearly every dimension of Africana phiosophy. In the first half of the book, they address Black Philosophies of Existence in terms of Traditional African Philosophy, the Harlem Renaissance, Du Boisian Double-Consciousness, and Fanonian and Sartrean Philosophies of Existence. In the second half of the book, contributors consider racial identity through examinations of such concepts as equality, death, mimesis, property, embodiment, technology, disappointment, and dread. Part II is an exploration of postmodern challenges to "black existence" through discussions of postmodern conservatism, Nietzsche's thoughts on blacks, Richard Wright and fragmented consciousness, and feminist critiques of race. And Part IV is an examination of problems of historical responsibility and constructing black liberation theories. Contributors are: Ernest Allen, Jr., Robert Birt, Bernard Boxill, George Carew, Bobby Dixon, G.M. James Gonzales, Lewis R. Gordon, Leonard Harris, Floyd Hayes, III, Paget Henry, Patricia Huntington, Joy Ann James, Clarence Shole Johnson, Bill E. Lawson, Howard McGary, Roy D. Morrison, William Preston, Jean-Paul Sartre, T. Denean Sharpley-Whiting, Gary Schwartz, Robert Westley, and Naomi Zack. (shrink)
According to Hempel's paradox, evidence (E) that an object is a nonblack nonraven confirms the hypothesis (H) that every raven is black. According to the standard Bayesian solution, E does confirm H but only to a minute degree. This solution relies on the almost never explicitly defended assumption that the probability of H should not be affected by evidence that an object is nonblack. I argue that this assumption is implausible, and I propose a way out for Bayesians. Introduction (...) Hempel's paradox, the standard Bayesian solution, and the disputed assumption Attempts to defend the disputed assumption Attempts to refute the disputed assumption A way out for Bayesians Conclusion. (shrink)
It is commonly believed that people become selfish and turn to looting, price gouging, and other immoral behaviour in emergencies. This has been the basis for an argument justifying extraordinary measures in emergencies. It states that if emergencies are not curtailed, breakdown of moral norms threaten (‘the moral black hole’). Using the example of natural disasters, we argue that the validity of this argument in non-antagonistic situations, i.e. situations other than war and armed conflict, is highly questionable. Available evidence (...) suggests that people in such emergencies typically do not display panic reactions or exaggerated selfishness, and that phenomena such as looting and price gouging are rare. Furthermore, a version of the moral-black-hole argument based on the mere possibility of a moral black hole occurring runs into problems similar to those of Pascal’s Wager. We conclude that we should be wary against applying the moral-black-hole argument to non-antagonistic cases. (shrink)
This book promises to tell “the untold story of the principal historical path from Isaac Newton to Albert Einstein” (xii). It is an ambitious promise. In explaining the influence of Reid’s philosophy on how Scottish scientists addressed phenomena such as light, heat, electricity, etc., Wilson addresses the exquisitely “Scottish” flavor of the contributions of Joseph Black, John Anderson, John Robinson, Dugald Stewart, Joseph Boscovitch, and several others. While the alleged goal is projected toward late nineteenth- and early twentieth-century discoveries, (...) the discussion never loses sight of its historical context, by stressing the importance of theological consideration in scientific arguments (e.g. Robinson’s .. (shrink)
A recent story in USA Today about the war in Afghanistan drew a direct parallel to the film Black Hawk Down : When the history of the war is written, the traumatic battle in the mountains around the Shah-e-Kot Valley will be remembered as a testament to heroism: A bloodied, outnumbered band of US servicemen held off a determined al-Qaeda force on frigid rocky terrain at least 8,000 feet above sea level. Call it Black Hawk Down in the (...) snow. (Jonathan Weisman, "Deadliest day for US", USA Today 3/6/02). Why would a reporter (Jonathan Weisman) interrupt his recitation of the facts of the battle, right near the start of his article, to suggest that readers should mimic the judgment of the film? Because the film seems to have a message, not only about history, but about the current US war on terrorism: support our troops, and don�t question a war�s intent or methods. (shrink)
While psychoanalysis credits the entrenchment of systems of subordination to the necessity of socialization and the transmission of dominant values from parent to child, by claiming social symbolics independent of the dominant hegemony, W.E.B. Du Bois calls for resistant forms of identification. Psychoanalyticaccounts of social power relations often assume that the dominant social group produces the only operative social symbolic and that this symbolic is also identical with the nation, but Du Bois’s attention to the slave song allows him to (...) trace the burial of a black American symbolic rather than a traumatic inculcation of the dominant white symbolic. (shrink)
Historically, for Black writers, literary fiction has been a site for transforming the discursive disciplinary spaces of political oppression. From 19th century “slave narratives” to the 20th century, Black novelists have created an impressive literary counter-canon in advancing liberatory struggles. W.E.B. Du Bois argued that “all art is political.” Many Black writers have used fiction to create spaces for political and social freedom—from the early work of Harriet Wilson’s Our Nig; or, Sketches from the Life of a (...) Free Black (1859)—to the enduring works of the Harlem Renaissance (Toomer, Hurston, and Schuyler)—to the great revolutionary Black literature after WWII (Wright, Baldwin, Williams)—to contemporary Black writers (Toni Morrison, Edward Jones, Samuel Delany)—Black fictive space continues to be a necessary site for resistance. Black literary fiction is a vast counter-canon to mainstream literature which unquestioningly reinforces global white supremacy, capitalistic political oppressions, and the dominance/subordinance relations upon which they depend. (shrink)
Historically, the sub-Saharan Africans’ being-in-the-world with other peoples and nations has been characterized by a ‘Black-Out,’ or the exclusion of black Africans from full humanity and the violation of their human rights through slavery, colonization, apartheid, etc. So far globalization looks like another ‘Black-Out’ or recolonization, Westernization, homogenization, the universalization of the particular, and a jungle rather than an opportunity for all. This conception of globalization has resulted in skepticisms about, and fear of the phenomenon. Antiglobalization movements (...) – e.g., the World Social Forum - are the expression of many people’s feelings about globalization. The 21st-century globalization cannot be really global except by being a dynamic synthesis of all peoples’ culturaland economic values. So in this paper I argue that despite the potential benefits of globalization, African peoples – more than anybody else - have good reasons to fear and/ or be skeptical about it. This is due to the negativities and the paradoxical nature of globalization on the one hand; and the African colonial andneocolonial experience, on the other. I propose an alternative to “the savage globalization” or ‘junglobalization.’ I will call it ‘Pan-Bantuist Globalization.’ It is intended to move globalization from Eurocentrism and/or any other negative ethnocentrism to ‘pan-anthropocentrism’ or ‘pan-Bantucentrism,’ thereby creatingconditions for inclusion, equality, brotherhood/sisterhood, and respect for human rights. In other words, Pan-Bantuist Globalization is concerned with democratizing and civilizing the savage globalization through an ethic of globalization, i.e., a global ethics that is based on the golden rule, human rights, ‘Ubuntu’, ‘Maat’, and ‘Yin-Yang’. If acted upon this ethics, noboby – including Africans – will be left behind and things will not fall apart again. (shrink)
By analyzing the author of Ziyi ç¼è¡£ (Black Costumes) as well as Ziyiâs transmission and evolution by studying and analyzing the ancient text, one can see that Ziyi was a work of Zisi or the Zisi and Mencius School. Comparing the similarities and differences between the transmitted version of Ziyi and its Guodian éåº and Shangbo ä¸å versions, one finds that the original version of Ziyi had been significantly revised by Confucian classics teachers in the unstable political and social (...) climate during the Western Han Dynasty, specifically, the thought of moral politics of the original Confucians contained in the work was garbled and concealed, and the idea of law and the legal system was highlighted accordingly. The uncovered Guodian and Shangbo versions of Ziyi have removed the shroud that Confucians in the Han Dynasty had spread over it for 2, 000 years, revealing the thought of moral politics of the original Confucians. (shrink)
Collinearity or correspondence between the contours of the inducing figure to allow `contour continuation' or `figure completion' were, according to G. Kanizsa, the necessary conditions for producing anomalous surfaces or contours. Since Kanizsa's early work various hypotheses have been advanced to explain the phenomenon, but very few examples of anomalous contours that do not satisfy the above conditions have been reported. When two small white discs (1 cm in diameter) are set on a larger black disc in slow rotation, (...) the two discs, after some observation time, will appear as the extremities of a rigid cylinder displaced in depth. The surface of the cylinder, under dim illumination, appears as a whitish transparent surface. However, when the two discs are substituted by a circle and a semicircle of the same size, a clear anomalous contour appears to form the cylinder, even under clear light conditions and when the colours are reversed; i.e., black circles on white disc. The anomalous contours are not apparent when the configuration is stationary. I will demonstrate how the anomalous contours of a stereokinetic cylinder can be obtained even without the “interruption” of the lines in the semicircle. (shrink)
American History X (hereafter AHX) has been accused by numerous critics of a morally dangerous cinematic seduction: using stylish cinematography, editing, and sound, the film manipulates the viewer through glamorizing an immoral and hate-filled neo-nazi protagonist. In addition, there’s the disturbing fact that the film seems to accomplish this manipulation through methods commonly grouped under the category of “fascist aesthetics.” More specifically, AHX promotes its neo-nazi hero through the use of several filmic techniques made famous by Nazi propagandist Leni Riefenstahl. (...) Now most critics admit that, in the end, the film claims to denounce racism and attempts to show us the conversion of the protagonist to the path of righteousness, but they complain that nonetheless the film (perhaps unintentionally) ends up implicitly promoting the immoral worldview it rather superficially professes to reject in its final act. This charge of hypocrisy is connected to another worry: the moral conversion in the film is said to fall flat because the intellectual resources on display to support the character’s racism are not counterbalanced by equally explicit (but superior) arguments for the anti-racist position ultimately embraced by the character. In other words, just as the devil is said to get all the good lines in Milton’s Paradise Lost, in AHX the racists get all the arguments. This has been taken to be a morally problematic flaw of the film. Critics lament that Derek’s conversion seems to result not from relevant logical inferences and valid rational argumentation but from overly simplistic and arguably egoistic insights (e.g., “has anything you've done made your life better?”) combined, perhaps, with a hackneyed cliché (in prison, one of his best friends is a black person!) In this paper I’ll attempt to rebut these charges and defend the film as a powerful, and powerfully moral, work of art. I’ll be suggesting that the seductive techniques employed allow for many viewers a degree of sympathy towards the protagonist that is crucial, both for making that character’s more horrific actions especially unsettling, and also for making his eventual conversion plausible and ultimately compelling. I’ll also argue that the manner in which his conversion is presented is in fact subtler than many critics have allowed: Derek’s transformation is not artificial or implausible but is depicted as resulting from a cumulative series of emotionally powerful life events and personal engagements. It is certainly true that it is not represented in the way some would seemingly have preferred, i.e. as straightforwardly resulting from a process of gradual intellectual improvement in Derek’s reasoning on questions of race and politics. However, I’ll argue that the decidedly emotional basis of his moral evolution is both refreshingly realistic and no hindrance to accepting his conversion as rational. Finally, properly understanding the legitimacy of the emotional foundations of much moral thought will also allow us to appreciate the ways in which our initial worries about this film’s (not insignificant) ability to persuade viewers through the engagement of emotions need not, in itself, be seen as a barrier to endorsing the film as a morally praiseworthy work. (shrink)
I’m going to argue for a set of restricted skeptical results: roughly put, we don’t know that fire engines are red, we don’t know that we sometimes have pains in our lower backs, we don’t know that John Rawls was kind, and we don’t even know that we believe any of those truths. However, people unfamiliar with philosophy and cognitive science do know all those things. The skeptical argument is traditional in form: here’s a skeptical hypothesis; you can’t epistemically neutralize (...) it, you have to be able to neutralize it to know P; so you don’t know P. But the skeptical hypotheses I plug into it are “real, live” scientific-philosophical hypotheses often thought to be actually true, unlike any of the outrageous traditional skeptical hypotheses (e.g., ‘You’re a brain in a vat’). So I call the resulting skepticism Live Skepticism. Notably, the Live Skeptic’s argument goes through even if we adopt the clever anti-skeptical fixes thought up in recent years such as reliabilism, relevant alternatives theory, contextualism, and the rejection of epistemic closure. Furthermore, the scope of Live Skepticism is bizarre: although we don’t know the simple facts noted above, many of us do know that there are black holes and other amazing facts. (shrink)
Three clusters of philosophically significant issues arise from Frege's discussions of definitions. First, Frege criticizes the definitions of mathematicians of his day, especially those of Weierstrass and Hilbert. Second, central to Frege's philosophical discussion and technical execution of logicism is the so-called Hume's Principle, considered in The Foundations of Arithmetic . Some varieties of neo-Fregean logicism are based on taking this principle as a contextual definition of the operator 'the number of …', and criticisms of such neo-Fregean programs sometimes appeal (...) to Frege's objections to contextual definitions in later writings. Finally, a critical question about the definitions on which Frege's proofs of the laws of arithmetic depend is whether the logical structures of the definientia reflect our pre-Fregean understanding of arithmetical terms. It seems that unless they do, it is unclear how Frege's proofs demonstrate the analyticity of the arithmetic in use before logicism. Yet, especially in late writings, Frege characterizes the definitions as arbitrary stipulations of the senses or references of expressions unrelated to pre-definitional understanding. One or more of these topics may be studied in a survey course in the philosophy of mathematics or a course on Frege's philosophy. The latter two topics are obviously central in a seminar in the philosophy of mathematics in general or more specialized seminars on logicism, or on mathematical definitions and concept formation. Author Recommends: 1. Kant, Immanuel. Critique of Pure Reason . Trans. P. Guyer and A. Wood. Cambridge: Cambridge University Press, 1999 [1781, 1787], A7-10/B11-14, A151/B190. In the first Critique , Kant appears to give four distinct accounts of analytic judgments. The initial famous account explains analyticity in terms of the predicate-concept belonging to the subject-concept (A6–7/B11). In this passage, we also find an account of establishing analytic judgments on the basis of conceptual containments and the principle of non-contradiction. (The other accounts are in terms of 'identity' (A7/B1l), in terms of the explicative–ampliative contrast (A7/B11), and by reference to the notion of 'cognizability in accordance with the principle of contradiction' (A151/B190).) 2. Frege, Gottlob. The Foundations of Arithmetic . Trans. J. L. Austin. 2nd ed. Evanston, IL: Northwestern University Press, 1980 [1884], especially sections 1–4, 87–91. Frege here criticizes and reformulates Kant's account of analyticity. Central to Frege's account is the provability of an analytic statement on the basis of (Frege's) logic and definitions that express analyses of (mathematical, especially arithmetical) concepts. 3. Frege, Gottlob. Review of E. G. Husserl. 'Philosophie der Arithmetik I [1894],' in Frege, Collected Papers . Ed. B. McGuinness. Trans. M. Black et al. Oxford: Blackwell, 1984. 195–209. In this review, Frege responds to Husserl's charge that Frege's definitions fail to capture our intuitive pre-analytic arithmetical concepts by claiming that the adequacy of mathematical definitions is measured, not by their expressing the same senses, but merely by their having the same references, as pre-definitional vocabulary. It follows not only that Husserl's criticism is unfounded, but also that there can be alternative, equally legitimate, definitions of mathematical terms. 4. Frege, 'Logic in Mathematics,' in Frege, Posthumous Writings . Trans. P. Long and R. White. Oxford: Blackwell, 1979 [1914]. 203–50. These are a set of lecture notes including, among other things, an account of proper definitions as mere abbreviation of complex signs by simple ones, in contrast to definitions which purport to express the analyses of existing concepts. Frege here claims that if there is any doubt whether a definition purporting to express an analysis succeeds in capturing the senses of the pre-definitional expressions, then the definition fails as an analysis, and should be regarded as the introduction of an entirely new expression abbreviating the definiens . 5. Picardi, Eva. 'Frege on Definition and Logical Proof,' Temi e Prospettive della Logica e della Filosofia della Scienza Contemporanee . i vol. Eds. C. Cellucci and G. Sambin. Bologna: Cooperativa Libraria Universitaria Editrice Bologna, 1988. 227–30. Picardi sets out forcefully the view that unless Frege's definitions capture the meanings of existing arithmetical terms, his logicism cannot have the epistemological significance he takes it to have. 6. Dummett, Michael. 'Frege and the Paradox of Analysis,' in Dummett, Frege and other Philosophers . Oxford: Oxford University Press, 1991. 17–52. Dummett agrees with Picardi's view and analyzes the philosophical pressures that led Frege to the account of definition in 'Logic in Mathematics.' Especially significant is Dummett's claim of the centrality of the transparency of sense – that if one grasps the senses of any two expressions, one must know whether they have the same sense – in Frege's account. 7. Benacerraf, Paul. 'Frege: The Last Logicist,' Midwest Studies in Philosophy . vol. 6. Eds. P. French, T. Uehling, and H. Wettstein. Minneapolis: University of Minnesota Press, 1981. 17–35. Frege's aims, on Benacerraf's reading, are primarily mathematical. Frege was interested in traditional philosophical issues such as the analyticity of arithmetic only to the extent that they can be exploited for the mathematical goal of proving previously unproven arithmetical statements. Hence, Frege never had any serious interest in or need for showing that his definitions of arithmetical terms reflect existing arithmetical conceptions. 8. Weiner, Joan. 'The Philosopher Behind the Last Logicist,' in Frege: Tradition and Influence . Ed. C. Wright. Oxford: Blackwell, 1984. 57–79. Weiner argues that on Frege's view, prior to his definitions of arithmetical terms the references of such expressions are in fact not known by those who use arithmetical vocabulary. Thus, in Foundations , Frege operated with a 'hidden agenda' (263) namely, replacing existing arithmetic with a new science based on stipulative definitions that assign new senses to key arithmetical terms. 9. Tappenden, Jamie. 'Extending Knowledge and 'Fruitful Concepts': Fregean Themes in the Foundations of Mathematics.' Noûs 29 (1995): 427–67. Tappenden argues that Frege takes his crucial innovation over previous practices and accounts of mathematical concept formation to be the role of quantificational structure made possible by his logical discoveries. 10. Horty, John. Frege on Definitions: A Case Study of Semantic Content . Oxford: Oxford University Press, 2007. A useful interpretation of Frege's views of definition, together with suggestive extensions for resolving the issues framing Frege's views. 11. Shieh, Sanford. 'Frege on Definitions,' Philosophy Compass 3/5 (2008): 992–1012. A more detailed account of Frege's views on definition and the philosophical issues they raise, surveying and discussing critically the main substantive and interpretive issues. Online Materials On Frege http://plato.stanford.edu/entries/frege/ On the Paradox of Analysis http://plato.stanford.edu/entries/analysis/ Sample Syllabus The following is a 3-week module that can be incorporated into fairly focused historically oriented graduate-level seminars on logicism or on the paradox of analysis. It is also possible to compress the material into 2 weeks in an undergraduate or graduate class Frege's thought in general. Week I: Background, Kant on Analyticity; Definition in Foundations , Review of Husserl, and 'Logic in Mathematics' Readings Kant, Immanuel. Critique of Pure Reason , A7–10/B11–14. Frege, Gottlob. The Foundations of Arithmetic , sections 1–4, 87–91. Frege, Gottlob. Review of E. G. Husserl, Philosophie der Arithmetik I. Frege, Gottlob. 'Logic in Mathematics.' Optional Proops, Ian. 'Kant's Conception of Analytic Judgment,' Philosophy and Phenomenological Research LXX, 3 (2005): 588–612. Week II: The Supposed Paradox of Analysis, Picardi and Dummett; Bypassing Traditional Epistemological Issues About Mathematics, Benacerraf Readings Picardi, Eva. 'Frege on Definition and Logical Proof.' Dummett, Michael. 'Frege and the Paradox of Analysis.' Benacerraf, Paul. 'Frege: The Last Logicist.' Optional Tappenden, Jamie. 'Extending Knowledge and 'Fruitful Concepts': Fregean Themes in the Foundations of Mathematics.' Week III: Weiner's Hidden Agenda Interpretation Readings Weiner, Joan. 'The Philosopher Behind the Last Logicist.' Optional Weiner, Joan. Frege in Perspective . Ithaca, NY: Cornell University Press, 1990. Focus Questions 1. To what extent is Frege's account of analyticity in Foundations a rejection, and to what extent an updating, of Kant's view of analyticity? 2. According to Picardi it 'would be incomprehensible' how Frege's proofs tells us anything about the arithmetic we already have unless his 'definitions [are] somehow responsible to the meaning of [arithmetical] sentences as these are understood' (228). Why does she hold this? Why does Dummett agree with her? Do you think Frege's logicism needs to address this worry? 3. What are the major differences and continuities in Frege's discussions of definition in mathematics in Foundations , the review of Husserl and 'Logic in Mathematics'? 4. Frege writes that definitions must prove their worth by being fruitful. He also says that nothing can be proven using a proper definition that cannot be proven without it. Are these claims consistent? Why or why not? 5. Weiner held that in Foundations Frege had 'hidden agenda.' What, according to her, is this agenda? How does this fit with Frege's later views of definition? 6. What are Frege's main complaints about Weierstrass's definitions in 'Logic in Mathematics'? Are these criticisms consistent with Frege's account of 'definition proper' in the same text? Seminar/Project Ideas What, if anything, is the relation between Frege's critique of Hilbert's use of definitions and Frege's later views of definitions? (shrink)
In this article I take a loose, functional approach to defining induction: Inductive forms of reasoning include those prima facie reasonable inference patterns that one finds in science and elsewhere that are not clearly deductive. Inductive inference is often taken to be reasoning from the observed to the unobserved. But that is incorrect, since the premises of inductive inferences may themselves be the results of prior inductions. A broader conception of inductive inference regards any ampliative inference as inductive, where an (...) ampliative inference is one where the conclusion ‘goes beyond’ the premises. ‘Goes beyond’ may mean (i) ‘not deducible from’ or (ii) ‘not entailed by’. Both of these are problematic. Regarding (i), some forms of reasoning might have a claim to be called ‘inductive’ because of their role in science, yet turn out to be deductive after all—for example eliminative induction (see below) or Aristotle’s ‘perfect induction’ which is an inference to a generalization from knowledge of every one of its instances. Interpretation (ii) requires that the conclusions of scientific reasoning are always contingent propositions, since necessary propositions are entailed by any premises. But there are good reasons from metaphysics for thinking that many general propositions of scientific interest and known by inductive inference (e.g. “all water is H2O”) are necessarily true. Finally, both (i) and (ii) fail to take account of the fact that there are many ampliative forms of inference one would not want to call inductive, such as counter-induction (exemplified by the ‘gambler’s fallacy’ that the longer a roulette wheel has come up red the more likely it is to come up black on the next roll). Brian Skyrms (1999) provides a useful survey of the issues involved in defining what is meant by ‘inductive argument’. Inductive knowledge will be the outcome of a successful inductive inference. But much discussion of induction concerns the theory of confirmation, which seeks to answer the question, “when and to what degree does evidence support an hypothesis?” Usually, this is understood in an incremental sense and in a way that relates to the rational credibility of a hypothesis: “when and by how much does e add to the credibility of h?”, although ‘confirms’ is sometimes used in an absolute sense to indicate total support that exceeds some suitably high threshold.. (shrink)
Where are we to look for the unique hues? Out in the world? In the eye? In more central processing? 1. There are difficulties looking for the structure of the unique hues in simple combinations of cone-response functions like ( L − M ) and ( S − ( L + M )): such functions may fit pretty well the early physiological processing, but they don’t correspond to the structure of unique hues. It may seem more promising to look to, (...) e.g., Hurvich & Jameson’s ‘chromatic response functions’; but these report on psychophysical behaviour, not on underlying physiology. So ‘opponent processing’ isn’t any particular help on the unique hues—and even physiology in general seems not to have come up with any good correlate or explanation. 2. Wright ( Review of Philosophy and Psychology 2: 1–17, 2011 ) looks in a different place: to (a) magnitude of total visual response that a stimulus light provokes, the maxima and minima of which, he thinks, give us the boundaries of the main hue categories (Wright connects these with Thornton’s ‘prime’ and ‘antiprime’ colours in an illuminant: Journal of the Optical Society of America 61 ( 1971 ): 1155–1163); and (b) the ratio of chromatic to achromatic response, the maxima and minima of which, he suggests, give us the focal points of the unique hues. The suggestions are extremely interesting; but the desired correspondences have some counterexamples; and where they hold, one could wonder how much they depend upon the particular choice of functions to measure (a) and (b); and one could hope for more of an explanatory linkage between the sets of items in question. 3. Could the unique hues come from, so to speak, the external world? White and black can easily be defined as particular kinds of reflectance. What of the standard four unique hues? Variation in kinds of sunlight and skylight coincides well with variation along a line from unique yellow to unique blue (cf. Shepard 1992 , Mollon 2006 ). If we wanted something to calibrate our standards for unique yellow and blue as the lens of the eye changes with age, and despite interpersonal cone differences, this would be a good basis—and there are several ways this can be extended to surface colours. But is there any essential connection between these things: is there any rationale why the light of the sun and the sky should be counted as unique hued ? An answer may be: because in our environment, these illuminants are as close to white (or the natural illuminant colour) as you can get—to see things tinged with sunlight or skylight should be to see them minimally tinged with any alien colour. Whereas other hues in an illuminant would be treated as tinging with a more alien colour the thing seen. (shrink)
In economics, models are built to answer specific questions. Each type of question requires its own type of models; in other words, it defines the requirements that a model should meet and thereby instructs how the models should be built. An explanation is an answer to a ‘why’-question. In economics, this answer is provided by a white-box model. To answer a ‘how much’-question, which is asking for a measurement, economists can make use of black-box models. Economic phenomena are (...) often so complex that white-box models that should function as explanations for them appear not to be intelligible. So, for questions concerning understanding - e.g. ‘Can you clarify this phenomenon‘’ ‘Can you tell me what would happen if‘’ - it would appear that grey-box models are more adequate. This implies a twofold revision of de Regt and Dieks’s (2005) criteria for understanding phenomena. First, whenever the term ‘theory’ is used it should be substituted by ‘model’. Secondly, the Criterion for the Intelligibility of Models (CIM) is now simplified as: ‘A model M is intelligible for economists (in context C) if they have built M as a grey-box construction’. A grey-box construction implies that they ‘can recognize qualitatively characteristic consequences of M without performing exact calculations’. (shrink)
Unconditionals are syntactic conditionals whose affirmation affirms their consequent, unconditionally. Prominent instances were addressed by J.L. Austin ('There are biscuits if you want some') and Nelson Goodman (even-if 'semifactuals'). Their detailed features are explained in a Decision-Theoretic Semantics (DTS) which extends, by certainty and relevance conditions, the "CCCP" conditional probability construal of conditionals due to Ernest Adams and others. The construal of assertions of conditionals as conditional acts, defended by Keith DeRose and Richard Grandy in 1999 against objections arising from (...) Austin's unconditionals, is shown to be incompatible with any known version of CCCP. However, an ad-hoc decision-theoretic construal of their proposal is seen to work for Austin's unconditionals, albeit for these only. The DTS account of unconditionals hinges on stochastic independence or irrelevance conditions. For Austin's variant, it also involves changes in the expectations of non-indicator random variables, i.e. properly valuational relevance relations. The widely assumed speaker's knowledge presumption for assertion in general is reconstrued non-transcendently as a proposal to update to ostensible common certainty. This imperative replaces the factive 'T-axiom', KA-> A, of modal logical explications of knowledge to yield an doxastically imperatival, but evidence-sensitive theory of assertoric truth claims. On such a basis, Max Black's and G.E. Moore's ostensibilist account of assertors representing themselves as knowing is defended against Tim Williamson's 1996 and Igor Douven's 2006 respective deontic proposals for a knowledge or rational credibility requirement. Moreover, ostensibly unconditional, unhedged assertion is reconciled with a reality of dimly perceived potential defeaters on recognizing it to be a tacit semifactual, if need be. (shrink)
This article examines the responses of two communities to hate crimes in their cities. In particular it explores how community understandings of responsibility shape collective responses to hate crimes. I use the case of Bridesberg, Pennsylvania to explore how anti-racist work is restricted by backward-looking conceptions of moral responsibility (e.g. being responsible). Using recent writings in feminist ethics.(1) I argue for a forward-looking notion that advocates an active view: taking responsibility for attitudes and behaviors that foster climates in which hate (...) crimes are more likely to occur, even when a person's individual actions do not contribute directly to harms. Using the case of Billings, Montana, I explain how recent Not In Our Town campaigns take responsibility for hate crimes in the ways feminist literature suggests. -/- I take as my point of departure hate crimes committed against the family of Bridget Ward, an African American woman, who moved into the suburb of Bridesburg in 1996. When issues of responsibility for racism arose in the local press, most Bridesbergers insisted that their community was not racist; they blamed only the individual vandals. This narrow blame-assigning focus is in keeping with most Anglo-American definitions of responsibility as belonging essentially to individuals and not to communities. Traditionally, moral and legal theory construct responsibility from a perspective that looks downward and back. These perspectives are preoccupied with punishment and reward, praise and blame; they assume justice is done when guilty parties are found and tried. -/- This focus masks deeper community problems. As Elizabeth Spelman remarks, "tolerance is easy if those who are asked to express it need not change a whit." (2) Focus on praise and blame is, in part, a function of race privilege. Bridesberg is 98% white, and part of "the arrogance whitely behavior" is positioning one's self as a judge, expert, and problem solver. (3) The view from this particular subject position limits attention to individuals and their actions, rather than to communities and their practices; it shifts attention away from the fact that Bridesberger's collective practice of distrusting outsiders has lead to hate crimes in the past. Pointing to vandals and claiming "they are racist" does not free one's community of racism. It reinscribes a community spirit that is resistant to change. -/- The second part of this essay explores what communities like Bridesberg might have done to prevent violence. Often there is little individuals alone can do to stop racial violence, but that there is a sense in which community members are obligated to organize themselves. Strategies that focus community responsibility on retribution rather than long-term change, are short lived and ineffective. Anti-racist activism requires a forward-looking view of responsibility: one that aims at inoculating the community against increased risk of violence. This requires taking responsibility for the fact that one's town might foster climates in which hate crimes are more likely to occur. It requires that we begin inquiry in the lives of those harmed. -/- Collective citizen efforts to prevent Aryan groups from gaining a foothold in Billings, Montana offers a clear illustration of how to take responsibility for hate crimes using strategies designed consciously to prevent further hate crimes (e.g., when Black Churches were threatens, all community members attended services there; when a rock was thrown through a window with a menorah, many homes displayed menorahs). The community responses in Billings are a stark contrast to those of Bridesburg, and serve as a powerful example of how forward-looking notions of responsibility can translate into effective political strategy. Although, these strategies are not in and of themselves feminist, they are powerful illustrations of what feminists mean by forward-looking views. The success of resident's collective action and coalition building gave rise to a national Not In Our Town campaign used in about a dozen cities today. (shrink)
In his paper, "Explanations of Irrelevance" (1983), Paul Horwich proposes an amended version of hypothetico-deductivism, (H-D * ). In this discussion note it is shown that (H-D * ) has the consequence that "A is a non-black raven" confirms "All ravens are black" relative to any tautology! It is noted that Horwich's (H-D * ) bears a strong resemblance to Hempel's prediction criterion of confirmation and that the prediction criterion faces the same obstacle. A related problem for hypothetico-deductivism (...) in its simplest form--that is, E confirms H iff E is an (observational) consequence of H--is displayed. The discussion concludes with a suggestion about how (H-D * ) and simple hypothetico-deductivism might be amended in order to avoid these results. (shrink)
While philosophers have, for centuries, pondered upon the relation between mind and brain, neuroscientists have only recently been able to explore the connection analytically — to peer inside the black box. This ability stems from recent advances in technology and emerging neuroimaging modalities. It is now possible not only to produce remarkably detailed images of the brain’s structure (i.e. anatomical imaging) but also to capture images of the physiology associated with mental processes (i.e. functional imaging). We are able to (...) see how specific regions of the brain ‘light up’ when activities such as reading this book are performed, and how our neurons and their elaborate cast of supporting cells organize and coordinate their tasks. As demonstrated in the other chapters of this book, the mapping of the human mind (mostly by measuring regional changes in blood flow, initially by positron emission tomography (PET) and recently by functional magnetic resonance imaging or (fMRI)) has provided insight into the functional neuroanatomy of neuropsychiatric diseases. Amazingly, the idea that regional cerebral blood flow (rCBF) is related intimately to brain function goes back more than a century. As is often the case in science, this idea was initially the result of unexpected observations. The Italian physiologist Angelo Mosso first expressed the idea while studying pulsations of the living human brain that keep pace with the heartbeat (Mosso, 1881). These brain pulsations can be observed on the surface of the fontanelles in newborn children. Mosso believed that they reflected blood flow to the brain. He observed similar pulsations in an adult with a post-traumatic skull defect over the frontal lobes. While studying this subject, a peasant named Bertino, Mosso observed a sudden increase in the magnitude of the ‘brain’s heart-beats’ when the church bells signalled 12 o’clock, the time for a required prayer. The changes in brain pulsations occurred independently of any change in pulsations in the forearm.. (shrink)
Biography is an ancient literary genre. First of all—chronologically and logically it is a part of historiography. Whether we think of biography as more like history or more like fiction, what we want from it is a vivid sense of the person. The cover illustration of the fortieth anniversary edition of E. H. Carr’s What is History?1 is a close-up of an eye with fluffy white clouds against a blue iris and a dramatic black pupil in the center. Magritte (...) called this painting The False Mirror, an apt image for the untrustworthy nature of our perceptions of the world and, in its use here, for the uncertainties surrounding definitions of history in the past half century. Confusion has often accompanied .. (shrink)
The Representational Theory of Measurement conceives measurement as establishing homomorphisms from empirical relational structures into numerical relation structures, called models. There are two different approaches to deal with the justification of a model: an axiomatic and an empirical approach. The axiomatic approach verifies whether a given relational structure satisfies certain axioms to secure homomorphic mapping. The empirical approach conceives models to function as measuring instruments by transferring observations of a phenomenon under investigation into quantitative facts about that phenomenon. These facts (...) are evaluated by their accuracy and precision. Precision is generally achieved by least squares methods and accuracy by calibration. For calibration standards are needed. Then two polar strategies can be distinguished: white-box modeling and black-box modeling. The first strategy of modeling aims at estimating the invariant (structural) equations of the phenomenon, thereby fulfilling Hertz’s correctness requirement. The latter strategy of modeling is to use known stable facts about the phenomenon to adjust the model parameters, thereby fulfilling Hertz’s appropriateness requirement. For this latter strategy, the requirement of models as homomorphic mappings has been dropped. Where one will find the axiomatic approach more often used for measurement in the laboratory, the empirical approach is more appropriate for measurement outside the laboratory. The reason for this is that for measurement of phenomena outside the laboratory, one also needs to take account of the environment to achieve accurate results. Environments are generally too relation-rich for an axiomatic approach, which are only applicable for relation-poor systems (laboratories). The white-box modeling strategy, reflecting the complexity of the environment due to its correctness requirement, will, however, lead to immensely large models. To avoid this problem, modular design is an appropriate strategy to reduce this complexity. Modular design is a grey-box modeling strategy. Grey-box models are assemblies of modules; these are black boxes with standard interface. It should be noted that the structure of the assemblage need not be homomorphic to the relations describing the interaction between phenomenon and environment. These three modeling strategies map out the possible designs for computer simulations as measuring instruments. Whether a simulation is based on a white-box, grey-box or black-box model is only determined by (the complexity of) the relationship between the phenomenon and its environment and not by e.g. its materiality or physicality. (shrink)
The Body at the Limits of Representation. The Theory of the Body and Painting in Merleau-PontyIn Eye and Mind,” Merleau-Ponty quotes a phrase from Valéry: “the painter brings his body with him.” He interprets the corporeal experience of the artist, not only as the center of a perceptual orientation or kinesthesis, but also as the inspiration for poets and for painters. In this sense, one can place his theory of body not only within the problematic of the phenomenological constitution of (...) the perceived object, but also in the context of the deconstruction of representation or in the genealogy of “de-representation” (Lyotard). By following Merleau-Ponty’s interpretation of the works of Cézanne and Klee, we are going to see how his theory of the experience of body and the formation of their works of art meet up in his consideration of the reversibility of the visible and the invisible. When Merleau-Ponty quotes Valéry’s phrase “the painter brings his body with him,” the body of the artist is no longer “subject-body” perceiving the world in a prosaic way; rather, the body is implicated in the anonymous vision at the source from which the painter’s expression emerges. Just as nature is recounted through the poet, it has the faculty of seeing itself through the painter. In the “Methods of Natural Research,” Klee says “the resonance surpasses all the optical foundations between myself and that which opposes me,” “the united anti-optic way of the root going out of the earth, which looks at me from down below all the way up to my eyes” and of the “united non-optic way of the universe come from above.” He demonstrates that this non-optic resonance, rather than a mirror and a black screen separating the light, allows the eye to be seen as a point of junction of non-optical things and thereby it constitutes a part of the circle created by the new nature of works (eine neue Natürlichkeit des Werkes). Following what is particular to Merleau-Ponty’s thought in which the body is conceived as a principle of de-representation, one sees, by means of his intention of assessing modern artistic creation as the deconstruction of classical ontology, the overcoming of the ontology of the object. In conclusion, we note that the theory of body and of painting in Merleau-Ponty brings to light the limit of the possibility of representation in modern art, by emphasizing especially the non-perception or the transcendence that one can discern in the perceptual field. By interrogating the body of the painter and the poet, that is, the poetic body or the body as symbolism, prior to its being diverted into being a result of the brain and of the libido where the body is no longer the body visible in the world, by doing this, Merleau-Ponty has found a way of placing the body beyond representation. Poièsis is no longer mimèsis in the banal sense of imitation, and the poetic body is not the representational body. But, he has found a way of placing it still in Visibility, as if there were a hinge in this border between the visible and the invisible, in this border between representation and de-representation, a border that one cannot definitively overcome by structuring it as a dichotomy. (De-representation, but the visible. Therefore the possibility of visible de-representation in the artistic creation, in poièsis.) This hinge, which denies us an alternation, is the body, the flesh, which is the condition of thought as ontological interrogation: an ontological interrogation in the age of ir-representation, in the age of the impossibility of representation (Vorstellung) and of poem (Dichtung), in the age of crowds where the image appears as one of my fellow creatures just like the shadow cast by existence.Il corpo ai limiti della rappresentazione. La teoria del corpo e della pittura di Merleau-PontyNe L’occhio e lo spirito Merleau-Ponty cita una frase di Valéry: “il pittore si dà con il suo corpo”. Egli interpreta l’esperienza corporea dell’artista non solo come il centro di un orientamento percettivo o cinestesico, ma anche come motivo d’ispirazione per poeti e per pittori. In questo senso, si può collocare la sua teoria del corpo non solo all’interno della problematica della costituzione fenomenologica dell’oggetto percepito, ma anche nel contesto della decostruzione della rappresentazione o nella genealogia della “derappresentazione” (Lyotard). Seguendo l’interpretazione merleaupontiana delle opere di Cézanne e di Klee, vedremo come la sua teoria dell’esperienza del corpo e la formazione delle loro opere d’arte convergano nella considerazione della reversibilità del visibilee dell’invisibile. Quando Merleau-Ponty cita la frase di Valéry “il pittore si dà con il suo corpo”, il corpo dell’artista non è più un corpo soggettivo che percepisce il mondo in modo prosaico; il corpo è piuttosto implicato nella visione anonima dell’origine dalla quale emerge l’espressione del pittore. In Wege des Naturstudiums, Klee afferma che “la risonanza sorpassa tutti i fondamenti ottici tra me e ciò che mi si oppone”. Egli dimostra che questa risonanza non-ottica, piuttosto che essere uno specchio o uno schermo nero che separa la luce, permette di vedere l’occhio come un punto di giunzione di cose non ottiche e ciò costituisce una parte del circolo creato dalla nuova natura delle opere (eine neue Natürlichkeit des Werkes). Seguendo la particolarità del pensiero merleaupontiano, secondo il quale il corpo è concepito come un principio di de-rappresentazione, si nota, in virtù della sua intenzione di interpretare la creazione nell’arte moderna come la decostruzione dell’ontologia classica, il superamento dell’ontologia oggettivistica. In conclusione, osserviamo come la teoria del corpo e della pittura di Merleau-Ponty chiarisca i limiti della possibilità della rappresentazione nell’arte moderna, enfatizzando l’impercezione o la trascendenza che si può distinguere nel campo percettivo. Interrogando il corpo del pittore e del poeta – il corpo poetico o il corpo come simbolismo, a monte del suo porsi come risultato della mente o della libido, là dove il corpo non è ancora corpo visibile nel mondo – Merleau-Ponty ha trovato il mondo di collocare il corpo al di là della rappresentazione. Poièsis non è più mimesis nel senso banale d’imitazione, e il corpo poetico non è il corpo rappresentativo. Egli ha trovato il modo di posizionare il corpo nella Visibilità, come se esistesse un punto di rovesciamento situato sul confi ne tra visibile ed invisibile, ovvero sul confine tra rappresentazione e de-rappresentazione: un confine che non si può definitivamente superare se lo si continua a strutturare come dicotomia. Questo punto, che ci nega un’alternativa, è il corpo, la carne, che è condizione del pensiero come interrogazione ontologica: un’interrogazione ontologica nell’era dell’ir-rappresentazione, nell’era dell’impossibilità di rappresentare (Vorstellung) o di creare poemi (Dichtung), nell’era delle masse, in cui l’immagine appare come uno dei miei simili, come l’ombra proiettata dall’esistenza. (shrink)
Universals: Loux, M. J. The existence of universals. Russell, B. The world of universals. Quine, W. V. O. On what there is. Pears, D. F. Universals. Strawson, P. F. Particular and general. Wolterstorff, N. Qualities. Bambrough, R. Universals and family resemblances. Donagan, A. Universals and metaphysical realism. Sellars, W. Abstract entities. Wolterstorff, N. On the nature of universals.--Particulars: Loux, M. J. Particulars and their individuation. Black. M. The identity of indiscernibles. Ayer, A. J. The identity of indiscernibles. O'Connor, D. (...) J. The identity of indiscernibles. Allaire, E. B. Bare particulars. Chappell, V. C. Particulars re-clothed. Allaire, E. B. Another look at bare particulars. Meiland, J. W. Do relations individuate? Long, D. C. Particulars and their qualities. Copi, I. Essence and accident. Chandler, H. S. Essence and accident. Plantinga, A. World and essence. (shrink)
Russell's The Problems of Philosophy tries to establish a new theory of induction, at the same time that Hume is there accused of an irrationa/sceptictsm about induction". But a careful analysis of the theory of knowledge explicitly acnowledged by Hume revoais thctt, contrary to the standard interpretation in the XXth century, possibly influenced by Russell, Hume deals exclusively with causal inference (which he never classifies as "causal induction", although now we are entitkd to do so), never with inductive inference in (...) general, mainly generalisations abouy sensible qualities of objects ( whether, e.g., "all crows are black" or not is not arnong Hume's concerns). Russell's the,ories are thus only false alternatives to Hume's, in (1912) or in his (1948). (shrink)
The nature and aim of science, by E. Nagel.--Truth and provability, by L. Henkin.--Completeness, by L. Henkin.--Computability, by S. C. Kleene.--Necessary truth, by W. V. Quine.--What is a scientific theory? By P. Suppes.--Science and simplicity, by N. Goodman.--Scientific explanation, by C. G. Hempel.--Observation and interpretation, by N. R. Hanson.--Probability and confirmation, by H. Putnam.--Utility and acceptance of hypotheses, by I. Levi.--Space and time, by A. Grünbaum.--Problems of microphysics, by P. Feyerabend.--Aspects of explanation in biological theory, by M. Beckner.--Psychologism and methodological (...) individualism, by S. Morgenbesser.--Science, fact, and value, by M. Scriven.--The justification of induction, by M. Black. (shrink)
Studies of reasoning have often invoked a distinction between a natural or ordinary consideration of the premises, in which they are interpreted, and even distorted, in the light of empirical knowledge, and an analytic or logical consideration of the premises, in which they are analysed in a literal fashion for their logical implications. Two or three years of schooling have been seen as critical for the spontaneous use of analytic reasoning. In two experiments, however, 4-year-olds who were given brief instructions (...) that prompted use of an analytic approach continued to adopt this approach one week later. Thus, when given syllogistic problems in which the major premise was incongruent with their empirical knowledge (e.g. "All snow is black"), instructed children reasoned more accurately from that premise both immediately and a week later as compared to children given only a basic introduction. A third experiment showed that instructions also improved 4-year-olds' performance on hard-to-imagine, abstract material (e.g."All mib is white"). Similarities between the effects of brief instruction and of schooling are discussed. (shrink)
David Owen (2007). Locke on Judgment. In Lex Newman (ed.), The Cambridge Companion to Locke's "Essay Concerning Human Understanding". Cambridge University Press.score: 15.0
Locke usually uses the term “judgment” in a rather narrow but not unusual sense, as referring to the faculty that produces probable opinion or assent.2 His account is explicitly developed in analogy with knowledge, and like knowledge, it is developed in terms of the relation various ideas bear to one another. Whereas knowledge is the perception of the agreement or disagreement of any of our ideas, judgment is the presumption of their agreement or disagreement. Intuitive knowledge is the immediate perception (...) of the agreement or disagreement of two ideas, e.g., white is not black. If we perceive the idea of white, and the idea of black, nothing more is needed to perceive that white and black disagree with respect to identity. We just see or intuit it. Demonstrative knowledge is more complicated. Suppose we have or perceive the idea of the internal angles of a triangle, and also the idea of two right angles. Unless one is a prodigy, we can’t just “see” that these two ideas agree with respect to equality; we require a demonstration. For Locke, such a demonstration requires that we find another idea, such as 180 degrees, so that we can intuit that this idea stands in the relation of equality both to the internal angles of a triangle, and to two right angles. Thus a demonstration, for Locke, is a chain of ideas. (shrink)
This chapter raises a number of questions, not adequately addressed by any researcher to date, about what we see when our eyes are closed. In the historical literature, the question most frequently discussed was what we see when our eyes are closed in the dark (and so entirely or almost entirely deprived of light). In 1819, Purkinje, who was the first to write extensively about this, says he sees "wandering cloudy stripes" that shrink slowly toward the center of the field. (...) Other later authors also say such stripes are commonly seen, but they differ about their characteristics. In 1897, for example, Scripture describes them as spreading violet rings. After Scripture, the cloudy stripes disappear from psychologists' reports. Other psychologists describe the darkened visual field as typically -- not just idiosyncratically, for themselves -- very nearly black (e.g., Fechner), mostly neutral gray (e.g., Hering), or bursting with color and shape (e.g., Ladd). I loaned beepers to five subjects and collected their reports about randomly sampled moments of experience with their eyes closed. Their reports were highly variable, and one subject denied ever having any visual experience at all (not even of blackness or grayness) in any of his samples. I also briefly discuss a few other issues: whether we can see through our eyelids, whether the closed-eye visual field is "cyclopean", whether the field is flat or has depth or distance, and whether we can control it directly by acts of will. The resolution of such questions, I suggest, will not be straightforward. (shrink)
Professor Sterba argues for two interesting and provocative positions regarding affirmative action. First, affirmative action programs are still needed to ensure diversity in educational institutions of higher learning. Secondly, the proponents and opponents of affirmative action are not as far apart as they seem to think. To this end, he proposes a position that would give weight to race as a category for affirmative action that can withstand the challenges of affirmative action opponents while giving the needed support for affirmative (...) action proponents. It is his contention that both sides can support arguments for diversity affirmative action. This paper raises concerns about the ability of arguments for racial diversity to resolve or bring together opponents and proponents of affirmative action. It is argued that the negative social climate, regarding the social and intellectual merits of black Americans, works against the acceptance of affirmative action programs. In sum, it is argued that Professor Sterba’s position continues to put the social onus of changing racial attitudes on blacks with little or no effort on the part of whites other than allowing blacks admittance to formerly segregated educational institutions to interact with white students. (shrink)
Booker T. Washington (1856?1915), Principal of Tuskegee Institute, delivered an electrifying oration at the Atlanta Exposition in 1895. He drew cheers from white elites in the segregated audience, as also admiration, initially, from many blacks. Washington's ?Atlanta Compromise? speech unilaterally volunteered forfeiture of black political rights in the hope of white endorsement of limited black access to the lower rungs of the economic ladder. Washington's specific program ? prioritising work, vocational education, racial self?help etc. over any quest for (...) political rights ? was not original. His enigmatic ability to sell these notions to mutually opposed constituencies was startling. As Washington quickly rose to become one of the most powerful figures in America, the fortunes of his people, over the same period, spiralled away into the depths. The great imbalance between gain and loss in the ?Compromise? prompts the question whether or in what degree Washington ever shed a ?slave mentality? early imposed by violence and indoctrination. (shrink)
