Cortical stimulation has been used for brain mapping for over a century, and a standard assumption is that stimulation interferes with task execution due to local effects at the stimulation site. Stimulation can however produce afterdischarges which interfere with functional localization and can lead to unwanted seizures. We previously showed that cognitive effort can terminate these afterdischarges, when termination thus occurs, there are electrocorticography changes throughout the cortex, not just at sites with afterdischarges or sites thought functionally important for the (...) cognitive task used, and thresholds for afterdischarges and functional responses can change among stimulation trials. We here show that afterdischarge termination can occur prior to overt performance of the cognitive tasks used to terminate them. These findings, taken together, demonstrate that task-related brain changes are not limited to one or a group of functional regions or a specific network, and not limited to the time directly surrounding overt task execution. Discrete locations, networks and times importantly underpin clinical behaviors. However, brain activity that is diffuse in location and extended in time also affect task execution and can affect brain mapping. This may in part reflect fluctuating levels of attention, engagement, or motivation during testing. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Reconfiguring Modernity: Concepts of Nature in Japanese Political IdeologyWilliam R. LaFleurReconfiguring Modernity: Concepts of Nature in Japanese Political Ideology. By Julia Adeney Thomas. Berkeley, Los Angeles, and London: University of California Press, 2001. Pp. xvi + 225.Books written by persons who self-identify as intellectual historians usually lend themselves more easily to review in history journals than in those that focus on philosophy. Reconfiguring Modernity: Concepts of Nature in (...) Japanese Political Ideology, Julia Adeney Thomas' study of certain Meiji period thinkers is such a book. In 2002 it was awarded the John K. Fairbank Prize in history. Taking a cue to step into her topic from an early essay by Robert Bellah, one in which he had written that "the concern for nature has been a pervasive one in much of modern Japanese thought,"1 Thomas specifies her own search: "It is now time to recover the historical mutability of that concept, and to describe precisely its politics at particular moments in Japan's confrontation with modernity, both within the dominant ideology of the moment and with the alternatives to it" (pp. 30-31).Thomas is among those American students of Japan apparently trained to challenge the massive amounts of excavational scholarship and mile-high reputations of Japanese scholars of Japan. She picks arguments with some of the most highly respected Japanese minds of the twentieth century: the late Maruyama Masao, the late Ienaga Saburō, and Matsumoto Sannosuke.Although Thomas' criticisms tend to focus on those portions of the works of these prolific scholars that have been translated into English,2 some of her criticisms are certainly interesting and possibly valid. For instance, Maruyama, "who repeatedly excoriated Japan's reliance on the political authority of nature (shizen) " (p. 16), envisioned modernity, surely desirable, as involving a move "against Chu Hsi Confucianism"—that is, "an inevitable turning away from nature (shizen) to invention (sakui)" (p. 17). Nevertheless, Maruyama's hero, Ogyū Sorai (1666-1728), had understood "the narrative of modernity" but, tragically, stepped "back from invention at the critical moment, unable, it would seem, to embrace it as the culmination of the historical process" (p. 19).Thomas, rightly I think, indicates that most left and liberal thinkers in Europe and America in the early and mid-twentieth century were skeptical of an invocation of the "natural" in the making of political theory.3 However, she stakes a claim to being part of a different generation, one that rejects the old binary opposition between nature and culture—as well as the further assumption that Western political thinking had successfully disengaged itself from invoking the category of what is natural. Taking a cue from Stephen Toulmin's demonstration of how many of Europe's modernizers embraced and used, rather than rejected, concepts of nature,4 Thomas claims that, at least for us who now live "'on the far side of modernity,' nature can be seen [End Page 172] as multivalent rather than the antonym in a series of binary opposites." In practice this means that for us now, "nature can no longer appear synonymous with the anti-modern, the past, the oppressive, or the Orient" (p. 25).I ask that the reader highlight the sentences above. They constitute what in my view is the most important and by far the most interesting move made in Refiguring Modernity. I will return to them below. First, however, I will recapitulate the progression of the book's chapters. They move in the pattern of linear history. The first, discussed already and titled "The Trouble with Nature," introduces the problem. The second, "The Topographical Imagination of Tokugawa Politics," deals with thinkers of the Tokugawa (Edo) period (1600-1868). Theirs was an era during which, although Chinese claims to being both topographically and morally central had long been dutifully accepted in Japan, strong-thinking Japanese argued that China's frequent dynastic changes demonstrated that "centralness need not be possessed physically to be enacted morally" (p. 42). By outdoing contemporaneous Chinese in terms of being Confucian, Neo-Confucian, or whatever it was that had its origins in China, Japanese and in some sense Japan as a whole were imagined to be the "real China."5... (shrink)

This essay presents a contextualist defense of the role of narrative and metaphor in the articulation of environmental ethical theories. Both the intelligibility and persuasiveness of ecocentric concepts and arguments presuppose that proponents of these ideas can connect with the narratives and metaphors guiding the expectations and interpretations of their audiences. Too often objectivist presuppositions prevent the full contextualization of environmental ethical arguments. The result is a disembodied environmental discourse with diminished influence on citizens and policy makers. This essay is (...) a pragmatist call for more philosophical attention to locating speakers, audiences, and meanings in more intelligible "discursive spaces." © 1999 Elsevier Science Inc. (shrink)

An edited version of a talk between Urban and Toynbee on Radio Free Europe. The book concerns the nature of history as well as discussing Marxism and Christianity, the third world, and the effects of technology.

In the late Middle Ages, Chaucer invents two imaginative domains crucial to his culture and to our understanding of the emergence of selfhood, subjectivity and social arrangements; antiquity and late-medieval modernity. Edwards demonstrates in this study how this was the result of Chaucer's reading and re-writing of the works of Boccaccio, which provide sources and models for portraying the classical past and medieval modernity. In so doing, Edwards provides us with a valuable way of assessing Chaucer's analysis of late medieval (...) culture. (shrink)