In an attempt to promote in-depth dialogue amongst bioethicists coming from distinct disciplinary and religious backgrounds this essay offers a critical analysis of a number of the leading methods of addressing pluralism in bioethics and. Exploring the critiques and methodological proposals coming from the social sciences, the contract theorists, and the pragmatists, this study describes the problems which arise when confronting moral diversity in a bioethical context and examines the ability of these various methodologies to adequately resolve these matters. Finally, (...) the foundations of a new conceptual framework for bioethical methodology will be developed. It will be argued that these new methodological insights are able to overcome the problems facing other methodologies and may provide a viable means for adequately addressing issues of pluralism in bioethics. (shrink)

ABSTRACT In a paper published in Bioethics, Jason Eberl has argued that early embryos are not persons and should not be granted the status possessed by them.1 Eberl bases this position upon the following claims: (1) The early embryo has a passive potentiality for development into a person. (2) The early embryo has not established both ‘unique genetic identity’ and ‘ongoing ontological identity’, which are necessary conditions for ensoulment. (3) The early embryo has a low probability of developing into a (...) more developed embryo. This paper examines these claims. I argue against (1) that a plausible view is that the early embryo has an active potentiality to grow into a more developed embryo. Against (2), I argue that neither ‘unique genetic identity’ nor ‘ongoing ontological identity’ are necessary conditions for ensoulment, and that ‘ongoing ontological identity’ is established between early embryos and more developed embryos. Against (3), I argue that the fact that the early embryo has a low probability of developing into a more developed embryo, if true, does not warrant the conclusion that the early embryo is not a person. If Eberl is right that the human soul is that which organises the activities of a human being and that ensouled humans are persons, embryos are persons from conception. (shrink)

A surgical head-transplant technique, HEAVEN, promises to offer significantly improved quality of life for quadriplegics and others whose minds are functional, but whose bodies require artificial support to continue living. HEAVEN putatively actualizes a thought-experiment long debated by philosophers concerning the definition of personhood and criterion of personal identity through time and change. HEAVEN’s advocates presume to preserve the identity of the person whose head is transplanted onto another’s living body, leaving one’s previous body behind as one would their corpse. (...) Various classical and contemporary theories of personhood and personal identity would support this presumption, while others would contest it as providing an accurate or complete view of what is essential for a human person to persist through this procedure. This paper brings such theories to bear in analyzing whether HEAVEN can indeed deliver on its promise of complete ontological survival for the person whose head is transplanted. (shrink)

Many debates in arenas such as bioethics turn on questions regarding the moral status of human beings at various stages of biological development or decline. It is often argued that a human being possesses a fundamental and inviolable moral status insofar as she is a “person”; yet, it is contested whether all or only human beings count as persons. Perhaps there are non-human person, and perhaps not every human being satisfies the definitional criteria for being a person. A further question, (...) which will be the primary focus of this paper, concerns what essential features of personhood endow persons, human or otherwise, with their moral status and the inherent rights they concomitantly possess. A survey of the history of philosophical theorizing on what it means to be a person yields a broad consensus upon the key capacities being rational thought, self-consciousness, and autonomous volition. It is not sufficient, however, simply to cite these capacities, but to explain why these particular capacities bear moral import. A more recent concern has developed regarding the possible future existence of so-called “post-persons” who, due to their enhanced cognitive and emotive capacities, may be morally superior to mere persons and thereby possess a higher moral status. This paper will conclude with an analysis of the extent to which this concern is warranted. (shrink)

Would Aquinas hold the view that a patient in a persistent vegetative state (PVS) is something other than a human being? Some recent interpreters have argued for this position. I contend that this reading is grounded in a false symmetry between the three stages of Aquinas’s embryology and the (alleged) three-stage process of death. Instead, I show that there are textual grounds for rejecting the view that the absence of higher brain activity in a patient would lead Aquinas to say (...) that the patient no longer has a rational soul. On my reading of Aquinas, the patient in PVS has a rational soul and is unequivocally a human being. (shrink)

I develop and refine an argument for the total brain death criterion of death previously advanced by Germain Grisez and me: A human being is essentially a rational animal, and so must have a radical capacity for rational operations. For rational animals, conscious sensation is a pre-requisite for rational operation. But total brain death results in the loss of the radical capacity for conscious sensation, and so also for rational operations. Hence, total brain death constitutes a substantial change—the ceasing to (...) be of the human being. Objections are considered, including the objection that total brain death need not result in the loss of capacity for sensation, and that damage to the brain less than total brain death can result in loss of capacity for rational operations. (shrink)

Recent debate among bioethicists concerns the potential to enhance human beings’ physical or cognitive capacities by means of genetic, pharmacological, cybernetic, or surgical interventions. Between “transhumanists,” who argue for unreserved enhancement of human capabilities, and “bioconservatives,” who warn against any non-therapeutic manipulation of humanity’s natural condition, lie those who support limited forms of enhancement for the sake of individual and collective human flourishing. Many scholars representing these views also share a concern over the status and interests of human beings with (...) various types of cognitive and physical disabilities, some of which may be ameliorable by enhancement interventions. The question addressed in this paper is whether valuing the enhancement of human capabilities may be reconciled with valuing the existence and phenomenological experiences of human beings with various disabilities. Can we value enhanced capabilities without disvaluing those whose capabilities fall below a defined threshold of “normal function”? Furthermore, if certain forms of disability, particularly cognitive disabilities, negatively impact one’s flourishing, could the enhancement of one’s cognitive capacities through biotechnological means enhance one’s flourishing. (shrink)