On translating logic

The paper comments on Dummett's Significance of Quine's Indeterminacy Thesis and discusses Quine's views on the translation of logical connectives. Some difficulties about the latter related to those raised by Morton (J. Phil. 70 (1973), 503–510) are considered. Quine seems here to be in a position considered by Dummett of not allowing a foreigner to be translated as conflicting with one's own firm theoretical commitment (in this case classical logic). But Dummett seems wrong in holding that entrenched theoretical statements must be stimulus analytic.A revised and expanded version of remarks at the Conference on Language, Intentionality, and Translation Theory, University of Connecticut, Storrs, March 2, 1973, commenting on Michael Dummett, The Significance of Quine's Indeterminacy Thesis. I am greatly indebted to the discussion at the Conference.     

Skilled Immigrants and the Negotiation of Family Relations During Settlement in Calgary,Alberta

When re-establishing their lives in Canada, international migrants with dependent children regularly encounter dramatically different conditions for family life. The parents’ employment situation, the limited availability of extended kin to help with child rearing, and a multicultural and relatively more permissive social environment, all of these invite or even demand changes in newcomers’ family practices. Yet, more information is needed about the ways in which skilled immigrants negotiate the changed conditions for work and family life in this country, and the impact this has on family dynamics during settlement. Drawing on data from interviews with 30 skilled immigrants living in Calgary, Alberta, this paper explores how coming to Canada impacted participants’ situations of paid work, parenting practices, and familial gender relations. Findings suggest that strained economic and social resources often limited the extent to which mothers and fathers were able to maintain an organization of family life similar to what they had established in their country of origin. However, while in some cases, shifts in family formation caused heightened levels of stress and strain and further entrenched the doing of conventional gender roles, in others, changed conditions acted as a catalyst for positive change. The tools that eased the burdens of settlement for some are explored, and recommendations are made for how to better support newcomer families.     

Structuralism and Metaphysics

I consider different versions of a structuralist view of mathematical objects, according to which characteristic mathematical objects have no more of a 'nature' than is given by the basic relations of a structure in which they reside. My own version of such a view is non-eliminative in the sense that it does not lead to a programme for eliminating reference to mathematical objects. I reply to criticisms of non-eliminative structuralism recently advanced by Keränen and Hellman. In replying to the former, I rely on a distinction between 'basic' and 'constructed' structures. A conclusion is that ideas from the metaphysical tradition can be misleading when applied to the objects of modern mathematics.     

Initial validation of a virtual environment for assessment of memory functioning: virtual reality cognitive performance assessment test.

The current project is an initial attempt at validating the Virtual Reality Cognitive Performance Assessment Test (VRCPAT), a virtual environment-based measure of learning and memory. To examine convergent and discriminant validity, a multitrait-multimethod matrix was used in which we hypothesized that the VRCPAT's total learning and memory scores would correlate with other neuropsychological measures involving learning and memory but not with measures involving potential confounds (i.e., executive functions; attention; processing speed; and verbal fluency). Using a sequential hierarchical strategy, each stage of test development did not proceed until specified criteria were met. The 15-minute VRCPAT battery and a 1.5-hour in-person neuropsychological assessment were conducted with a sample of 30 healthy adults, between the ages of 21 and 36, that included equivalent distributions of men and women from ethnically diverse populations. Results supported both convergent and discriminant validity. That is, findings suggest that the VRCPAT measures a capacity that is (a) consistent with that assessed by traditional paper-and-pencil measures involving learning and memory and (b) inconsistent with that assessed by traditional paper-and-pencil measures assessing neurocognitive domains traditionally assumed to be other than learning and memory. We conclude that the VRCPAT is a valid test that provides a unique opportunity to reliably and efficiently study memory function within an ecologically valid environment.     

Fear of Punishment in Another World: a Follow-Up Examination of the Religious Beliefs About HIV/AIDS—A Decade of Progress?

Journal of Religion and Health - This study compared 2000 and 2010 data on the religious beliefs about HIV/AIDS among those with HIV in a Deep South state. The percentage agreeing that HIV/AIDS is...     

A controlled clinical comparison of attention performance in children with ADHD in a virtual reality classroom compared to standard neuropsychological methods.

In this initial pilot study, a controlled clinical comparison was made of attention perforance in children with attention deficit-hyperactivity disorder (ADHD) in a virtual reality (VR) classroom. Ten boys diagnosed with ADHD and ten normal control boys participated in the study. Groups did not significantly differ in mean age, grade level, ethnicity, or handedness. No participants reported simulator sickness following VR exposure. Children with ADHD exhibited more omission errors, commission errors, and overall body movement than normal control children in the VR classroom. Children with ADHD were more impacted by distraction in the VR classroom. VR classroom measures were correlated with traditional ADHD assessment tools and the flatscreen CPT. Of note, the small sample size incorporated in each group and higher WISC-III scores of normal controls might have some bearing on the overall interpretation of results. These data suggested that the Virtual Classroom had good potential for controlled performance assessment within an ecologically valid environment and appeared to parse out significant effects due to the presence of distraction stimuli.