This article investigates the potential of fMRI to test assumptions about different components in models of complex cognitive tasks. If the components of a model can be associated with specific brain regions, one can make predictions for the temporal course of the BOLD response in these regions. An event‐locked procedure is described for dealing with temporal variability and bringing model runs and individual data trials into alignment. Statistical methods for testing the model are described that deal with the scan‐to‐scan correlations (...) in the errors of measurement of the BOLD signal. This approach is illustrated using a “sacrificial” ACT‐R model that involves mapping 6 modules onto 6 brain regions in an experiment from Ravizza, Anderson, and Carter (in press) concerned with equation solving. The model's visual encoding predicted the BOLD response in the fusiform gyrus, its controlled retrieval predicted the BOLD response in the lateral inferior prefrontal cortex, and its subgoal setting predicted the BOLD response in the anterior cingulate cortex. On the other hand, its motor programming failed to predict anticipatory activation in the motor cortex, its representational changes failed to predicted the pattern of activity in the posterior parietal cortex, and its procedural component failed to predict an initial spike in caudate. The results illustrate the power of such data to direct the development of a theory of complex problem solving, both at the level of a specific task model as well as at the level of the cognitive architecture. (shrink)

Eric Olsen argues from the fact that we once existed as fetal individuals to the conclusion that the Standard View of personal identity is mistaken. I shall establish that a similar argument focusing upon dead people opposes Olson’s favored Biological View of personal identity.

It no longer is true in a metaphorical sense only that a person can have a change of heart. We might grant this much — allow that a person may have one heart at one time and have another heart at still another time — and also resist the idea that a person can have a change of mind in anything other than a qualitative sense. In the discussion that follows, this standard view of the matter is called into question. (...) If the argument presented here is sound, it can happen both that one person has numerically different minds at different times and that different people have the same mind at different times. These possibilities, as I take them to be, call for reassessment of some well entrenched assumptions concerning personal identity and responsibility. In particular, they suggest that it may not be true that person A bears responsibility for making decisions person B previously made only on the condition that A is the same person as B. (shrink)

This volume contains 17 articles on various aspects of Islamic thought in the Middle East and in Southeast Asia. The first 9 articles concentrate especially on the Qur’ān and its exegesis, Kalām and Sufism; the second 8 articles deal with Javanese Islam, and with Islam and modernity in Southeast Asia.

Two recent papers by Michael Burke bearing upon the persistence of people and commonplace things illustrate the fact that the quest for synchronic ontological economy is likely to encourage a disturbing diachronic proliferation of entities. This discussion argues that Burke's promise of ontological economy is seriously compromised by the fact that his proposed metaphysic does violence to standard intuitions concerning the persistence of people and commonplace things. In effect, Burke would have us achieve synchronic economy (rejection of coincident entities) by (...) postulating strongly counterintuitive transtemporal claims of numerical diversity. The argument is made that the price of Burkean economy is too high. (shrink)

Should there be a female age limit on public funding for assisted reproductive technology (ART)? The question bears significant economic and sociopolitical implications and has been contentious in many countries. We conceptualise the question as one of justice in resource allocation, using three much-debated substantive principles of justice—the capacity to benefit, personal responsibility, and need—to structure and then explore a complex of arguments. Capacity-to-benefit arguments are not decisive: There are no clear cost-effectiveness grounds to restrict funding to those older women (...) who still bear some capacity to benefit from ART. Personal responsibility arguments are challenged by structural determinants of delayed motherhood. Nor are need arguments decisive: They can speak either for or against a female age limit, depending on the conception of need used. We demonstrate how these principles can differ not only in content but also in the relative importance they are accorded by governments. Wide variation in ART public funding policy might be better understood in this light. We conclude with some inter-country comparison. New Zealand and Swedish policies are uncommonly transparent and thus demonstrate particularly well how the arguments we explore have been put into practice. (shrink)

Two recent papers by Michael Burke bearing upon the persistence of people and commonplace things illustrate the fact that the quest for synchronic ontological economy is likely to encourage a disturbing diachronic proliferation of entities. This discussion argues that Burke’s promise of ontological economy is seriously compromised by the fact that his proposed metaphysic does violence to standard intuitions concerning the persistence of people and commonplace things. In effect, Burke would have us achieve synchronic economy (rejection of coincident entities) by (...) postulating strongly counterintuitive transtemporal claims of numerical diversity. The argument is made that the price of Burkean economy is too high. (shrink)

There has been much recent debate about Presentism among those who believe the doctrine to be nontrivial and true, those who believe it to be nontrivial and false, and those who believe it to be trivial — either trivially true or trivially false. Formulating Presentism precisely is problematic, which accounts for some of the controversy.

Modal properties are notorious epistemic trouble-makers. That theme is very much at the heart of Michael Rea’s thesis that the Discovery Problem (roughly, the problem of explaining how we know when ascriptions of modal properties are true) has no naturalistic resolution. That might encourage the thought that supernaturalism will somehow resolve the problem. This paper argues that supernaturalism is unlikely to offer a solution of the Discovery Problem.

Two recent papers by Michael Burke bearing upon the persistence of people and commonplace things illustrate the fact that the quest for synchronic ontological economy is likely to encourage a disturbing diachronic proliferation of entities. This discussion argues that Burke’s promise of ontological economy is seriously compromised by the fact that his proposed metaphysic does violence to standard intuitions concerning the persistence of people and commonplace things. In effect, Burke would have us achieve synchronic economy (rejection of coincident entities) by (...) postulating strongly counterintuitive transtemporal claims of numerical diversity. The argument is made that the price of Burkean economy is too high. (shrink)