Theoria versus Poesis: Neoplatonism and Trinitarian Difference in Aquinas,John Milbank,Jean-Luc Marion and John Zizioulas

The totality with which postmodern Christian theology asserts its right to proceed independently of philosophy is, in fact, philosophically situated and determined. Heidegger, primarily, defines theology's project by his narration of Western Fate in terms of onto-theology. Two trinitarian differences are required of theologians who understand theology's situation thus: the first, associated with the procession of the Logos, requires getting beyond philosophy; the second, associated with the Spirit, requires getting beyond theology to poesis. Following Heidegger transforms theology into poesis and praxis. Beginning from a criticism of Aquinas implicit in a contrast made by Milbank between true trinitarian differential ontology and that possible from within Aristotelian categories like potency, act and actus purus , the paper considers what response might be made on behalf of medieval western philosophical theology and its development of trinitarian difference within theoria. The argument is that its union of Neoplatonic negative theology and metaphysics does not escape being onto-theology but does provide genuine trinitarian difference.     

How Can Ethics Support Innovative Health Care for an Aging Population?

The rapidly expanding aging population presents an urgent global challenge cutting through just about every dimension of worldly life, including the social, political, cultural, and economic. Developing innovations in health and assistive technology (AT) are poised to support effective and sustainable health care in the face of this challenge, yet there is scant (but growing) discussion of the ethical issues surrounding AT for older persons with dementia. Demands for ethical frameworks that can respond to frontline dilemmas regarding AT development and provision, and how the needs of aging persons themselves are defined throughout this development process, are increasing. This article suggests that fulfilling the promises of AT to provide effective and ethically informed solutions may demand shifting away from standard bioethical analyses that centralize the principle of respect for autonomy. An autonomy-centric paradigm is dubiously equipped to theorize the foundational ethical issues in dementia care and to effectively guide AT development and implementation. An agency-centered approach to dementia care, which could engage more adaptively with the perspectives and choices of older persons themselves while offering strong support to AT research and stakeholders, may offer an attractive alternative.     

The End of Dependence? Ethical Issues in the Adoption of Assistive Technologies: An Introduction

This special issue explores the evolving role of assistive technology in health and medicine, with 3 original articles and 5 commentaries. The following introduction provides an overview of the issue’s unifying themes and the articles’ aims and concerns, as well as reflection on some critical points for discussion raised in the commentaries. Assistive technology finds itself at a pivotal point of development and integration into current systems, where sound and innovative ethical guidance is crucial. With this issue we hope to build capacity for realizing the potential of assistive technology—effectively, sustainably, and ethically.     

Memory systems and the control of skilled action

ABSTRACT

In keeping with the dominant view that skills are largely automatic, the standard view of memory systems distinguishes between a representational declarative system associated with cognitive processes and a performance-based procedural system. The procedural system is thought to be largely responsible for the performance of well-learned skilled actions. Here we argue that most skills do not fully automate, which entails that the declarative system should make a substantial contribution to skilled performance. To support this view, we review evidence showing that the declarative system does indeed play a number of roles in skilled action.     

The Nature and Processing of Errors in Interactive Behavior

Understanding the nature of errors in a simple, rule‐based task—programming a VCR—required analyzing the interactions among human cognition, the artifact, and the task. This analysis was guided by least‐effort principles and yielded a control structure that combined a rule hierarchy task‐to‐device with display‐based difference‐reduction. A model based on this analysis was used to trace action protocols collected from participants as they programmed a simulated VCR. Trials that ended without success (the show was not correctly programmed) were interrogated to yield insights regarding problems in acquiring the control structure. For successful trials (the show was correctly programmed), steps that the model would make were categorized as matches to the model; steps that the model would not make were violations of the model. The model was able to trace the vast majority of correct keystrokes and yielded a business‐as‐usual account of the detection and correction of errors. Violations of the model fell into one of two fundamental categories. The model provided insights into certain subcategories of errors; whereas, regularities within other subcategories of error suggested limitations to the model. Although errors were rare when compared to the total number of correct actions, they were important. Errors were made on 4% of the keypresses that, if not detected, would have prevented two‐thirds of the shows from being successfully recorded. A misprogrammed show is a minor annoyance to the user. However, devices with the approximate complexity of a VCR are ubiquitous and have found their way into emergency rooms, airplane cockpits, power plants, and so on. Errors of ignorance may be reduced by training; however, errors in the routine performance of skilled users can only be reduced by design.