Transplanting brains?

Brain transplant thought experiments figure prominently in the debate on personal identity. Such hypotheticals are usually taken to provide support for psychological continuity theories. This standard interpretation has recently been challenged by Marya Schechtman. Simon Beck argues that Schechtman's critique rests upon ‘two costly mistakes’—claiming that (1) when evaluating these cases, philosophers mistakenly try to figure out the intuitions that they think people inhabiting such a possible world ought to have, instead of pondering their own intuitions. Beck further asserts that (2) brain transplant thought experiments cannot confirm any given theory of personal identity but rather they can only rule out theories. I argue on grounds of the social ontology of personhood that Beck has things back to front. Since our concept of personhood is shaped and informed by contingent de facto norms and structures of the natural world, and as such is heavily normatively laden, the conceptual genesis of personhood must be taken into account. This calls for constructing thought experiments as realistically as possible in order to trigger reliable intuitions. Furthermore, drawing on recent evidence from cognitive science, an empirically informed look at brain transplant thought experiments considering ‘Embodied Cognition’ reveals that Beck's arguments not only fall short for supporting psychological continuity theories, but also suggests an advantage of Schechtman's ‘Person Life View’.     

Reconsidering a transplant: A response to Wagner

Nils-Frederic Wagner takes issue with my argument that influential critics of “transplant” thought experiments make two cardinal mistakes. He responds that the mistakes I identify are not mistakes at all. The mistakes are rather on my part, in that I have not taken into account the conceptual genesis of personhood, that my view of thought experiments is idiosyncratic and possibly self-defeating, and in that I have ignored important empirical evidence about the relationship between brains and minds. I argue that my case still stands and that transplant thought experiments can do damage to rivals of a psychological continuity theory of personal identity like Marya Schechtman’s Person Life View.     

Making sense of ourselves: self-narratives and personal identity

Some philosophers take personal identity to be a matter of self-narrative. I argue, to the contrary, that self-narrative views cannot stand alone as views of personal (or numerical) identity. First, I consider Dennett’s self-narrative view, according to which selves are fictional characters—abstractions, like centers of gravity—generated by brains. Neural activity is to be interpreted from the intentional stance as producing a story. I argue that this is implausible. The inadequacy is masked by Dennett’s ambiguous use of ‘us’: sometimes ‘us’ refers to real human beings, and sometimes ‘us’ refers to selves or fictional characters. Second, I consider Schechtmann’s view that self-narratives create persons (in the sense that she calls ‘characterization’ or personality. I argue that the sense in which a self-narrative creates a person cannot stand on its own: a person must already exist (in the sense of numerical identity) in order for there to be a self-narrative. Finally, I offer my own account of persons.     

Advance directives and the personal identity problem

The value and authority of advance directives such as the living will and the durable power of attorney are discussed, as well as the dangers of loss of personal identity and psychological continuity that these directives present. Differing theories of the degree of psychological continuity necessary for the preservation of personal identity are examined, concluding with the author's "compromise position" that cases of permanent unconsciousness and neurological dementia destroy some of the preconditions for personhood and thereby negate the choice between respecting the wishes of the formerly competent person and the new, different person's life because such beings are not persons at all.     

FIRST PERSON PLURAL: SELF‐UNITY AND SELF‐MULTIPLICITY IN THEOLOGY'S DIALOGUE WITH PSYCHOLOGY

In contradistinction to the contemporary human sciences, recent theological accounts of the individual‐in‐relation continue to defend the concept of the singular continuous self. Consequently, theological anthropology and the human sciences seem to offer widely divergent accounts of the sense of self‐fragmentation that many believe pervades the modern world. There has been little constructive interdisciplinary conversation in this area. In this essay I address the damaging implications of this oversight and establish the necessary conditions for future dialogue. I have three primary objectives. First, I show how the notion of personal continuity acquires philosophical theological significance through its close association with the concept of personal particularity. Second, through a discussion of contemporary accounts of self‐multiplicity, I clarify the extent of theological anthropology's disagreement with the human sciences. Third, I draw upon narrative accounts of identity to suggest an alternative means of understanding the experiential continuity of personhood that maintains the tension between self‐plurality, unity, and particularity and thereby reconnects philosophical theological concerns with human‐scientific analyses of the human condition. Narrative approaches to personhood are ideally suited to this purpose, and, I suggest, offer an intriguing solution to understanding and resolving the problem of self‐fragmentation that has caused recent theological anthropology so much consternation.     

True to oneself? Broad and narrow ideas on authenticity in the enhancement debate

Our knowledge of the human brain and the influence of pharmacological substances on human mental functioning is expanding. This creates new possibilities to enhance personality and character traits. Psychopharmacological enhancers, as well as other enhancement technologies, raise moral questions concerning the boundary between clinical therapy and enhancement, risks and safety, coercion and justice. Other moral questions include the meaning and value of identity and authenticity, the role of happiness for a good life, or the perceived threats to humanity. Identity and authenticity are central in the debate on psychopharmacological enhancers. In this paper, I first describe the concerns at issue here as extensively propounded by Carl Elliott. Next, I address David DeGrazia’s theory, which holds that there are no fundamental identity-related and authenticity-related arguments against enhancement technologies. I argue, however, that DeGrazia’s line of reasoning does not succeed in settling these concerns. His conception of identity does not seem able to account for the importance we attach to personal identity in␣cases where personal identity is changed through enhancement technology. Moreover, his conception of authenticity does not explain the reason why we find inauthentic values objectionable. A broader approach to authenticity can make sense of concerns about changes in personal identity by means of enhancement technologies.     

Changing the subject: on the subject of subjectivity

In this paper I shall attempt to argue for the simple view of personal identity. I shall first argue that we often do have warrant for our beliefs that we exist as continuing subjects of experience, and that these beliefs are justified independently of any reductionist analysis of what it means to be a person. This has two important implications that are relevant to the ongoing debate concerning the number of persons that are in existence throughout any duration in time: (1) the lack of logically or metaphysically necessary and sufficient conditions for distinguishing one person from another should imply neither that there is only one person nor that personhood is not individuative; and (2) the lack of such universally applicable identity criteria should not imply that the term ‘person’ is a folk term with no real application. In other words, lack of reductionist analysis does not entail lack of existence.     

ON THE VERY IDEA OF CRITERIA FOR PERSONHOOD

I examine the familiar criterial view of personhood, according to which the possession of personal properties such as self‐consciousness, emotionality, sentience, and so forth is necessary and sufficient for the status of a person. I argue that this view confuses criteria for personhood with parts of an ideal of personhood. In normal cases, we have already identified a creature as a person before we start looking for it to manifest the personal properties, indeed this pre‐identification is part of what makes it possible for us to see and interpret the creature as a person in the first place. This pre‐identification is typically based on biological features. Except in some interesting special or science‐fiction cases, some of which I discuss, it is human animals that we identify as persons.     

Defining Death for Persons and Human Organisms

This paper discusses how alternative concepts of personhood affect the definition of death. I argue that parties in the debate over the definition of death have employed different concepts of personhood, and thus have been talking past each other by proposing definitions of death for different kinds of things. In particular, I show how critics of the consciousness-related, neurological formation of death have relied on concepts of personhood that would be rejected by proponents of that formulation. These critics rest on treating persons as qualitative specifications of human organisms (Bernat, Culver, and Gert) or as identical to human organisms (Capron, Seifert, and Shewmon). Since advocates of the consciousness-related, neurological formulation of death are not committed to either of these views of personhood, these critics commit the fallacy of attacking a straw man. I then clarify the substantive concept of personhood (Boethius, Strawson, and Wiggins) that may be invoked in the consciousness-related, neurological formulation of death, and argue that, on this view and contra Bernat, Culver, and Gert, persons have always been the kind of thing that can literally die. I conclude by suggesting that the discussion of defining death needs to focus on which approach to personhood makes the most sense metaphysically and morally.     

Narrative,Expression and Mental Substance

This paper starts from the debate between proponents of a neo‐Lockean psychological continuity view of personal identity, and defenders of the idea that we are simple mental substances. Each party has valid criticisms of the other; the impasse in the debate is traced to the Lockean assumption that substance is only externally related to its attributes. This suggests the possibility that we could develop a better account of mental substance if we thought of it as having an internal relation to its states. I suggest that we may be able to do this by relying on the notion of expression. In developing this idea I draw heavily on aspects of Wittgenstein's philosophical psychology, while also developing and criticizing Strawson's account of persons and recent work by Lynne Baker. I conclude by arguing that mental substance, understood in this way, can only be grasped in narrative terms; substantialist and narrative accounts of personal identity, far from being opposed, are mutually supporting and require one another to be coherent.     

Empathic Access: The Missing Ingredient in Personal Identity

Abstract

Philosophical discussions of personal identity depend upon thought experiments which describe psychological vicissitudes and question whether the original person survives in the person resulting from the described change. These cases are meant to determine the types of psychological change compatible with personal continuation. Two main accounts of identity try to capture this distinction; psychological continuity theories and narrative theories. I argue that neither fully succeeds since both overlook the importance of a relationship I call “empathic access.” I define empathic access and discuss its role in a complete account of personal identity.     

The Fallacy of the Slippery Slope Argument on Abortion

ABSTRACT This paper attempts to show that the acorn–oak tree argument against the slippery slope on the personhood of the fetus is valid and William Cooney's attack on this argument fails. I also argue that the slippery slope argument leads to on undesirable conclusion and should not be used as a valid tool in the debate on the personhood of the fetus.     

Platonic Personal Immortality

I argue that Plato distinguishes between personal immortality and immortality of the soul. I begin by criticizing the consensus view that Plato identifies the person and the soul. I then turn to the issue of immortality. By considering passages from Symposium and Timaeus, I make the case that Plato thinks that while the soul is immortal by nature, if a person is going to be immortal, they must become so. Finally, I argue that Plato has a psychological continuity approach to personal identity. Thus, for Plato, a person becomes immortal by avoiding reincarnation and securing for themselves psychological continuity forever.     

A CHARIOT FOR THE SHEKHINAH: Identity and the Ideal Life in Sixteenth-Century Kabbalah

In this paper, I seek to present the range of issues involved in the efforts of sixteenth-century kabbalists to understand the nature of selfhood, and the paths prescribed for the formation of an ideal life. I reflect on the mystical writings of Moshe Cordovero, Eliyahu de Vidas, and     ayyim Vital—probing their conceptions of core identity, the polarity between body and soul, and the ethical guidance for a life well lived. In so doing, I consider the following additional themes, and their relation to the matrix of self-formation and religious identity: reincarnation and rebirth; the virtue of humility and self-effacement; the cultivation of wisdom; ideals of piety and prophetic experience; asceticism; and the spiritual transcendence of desire. In presenting this wide range of constituent themes, I argue that sixteenth-century kabbalists understood the soul to be the ultimate marker of personal identity (nuanced and complicated by the doctrine of reincarnation), and that they formulated a vision of an ideal ethics in which the human being functions as an earthly vessel for the divine presence. What is more, the preparation of that vessel required a degree of humility so extreme that the attainment of ideal personhood ultimately involved the effacement of that very identity.     

Some reflections on the problem of advance directives, personhood, and personal identity

In this paper, I consider objections to advance directives based on the claim that there is a discontinuity of interests, and of personal identity, between the time a person executes an advance directive and the time when the patient has become severely demented. Focusing narrowly on refusals of life-sustaining treatment for severely demented patients, I argue that acceptance of the psychological view of personal identity does not entail that treatment refusals should be overriden. Although severely demented patients are morally considerable beings, and must be kept comfortable whilst alive, they no longer have an interest in receiving life-sustaining treatment.     

Hylemorphism,remnant persons and personhood

Animalism is the doctrine that we human beings are – are identical with – animals. Hylemorphism is a form of animalism. In this paper, I defend hylemorphism by showing that while other forms of animalism fall prey to the problem of ‘Remnant Persons,’ hylemorphism does not. But hylemorphism's account of personhood seems to have some very implausible implications. I address one of those implications, and argue that it isn't nearly as objectionable as it might at first appear.     

NEUROMYTHOLOGY: BRAINS AND STORIES

Abstract. I sketch a synthetic integration of several levels of explanation in addressing how myths, narratives, and stories engage human beings, produce their sense of identity and self‐understanding, and shape their intellectual, emotional, and embodied lives. Ultimately it is our engagement with the metanarratives of religious imagination by which we address a set of existentially necessary but ontologically unanswerable metaphysical questions that form the basis of religious belief. I show how a multileveled understanding of evolutionary biology, history, neuroscience, psychology, narrative, and mythology may form a coherent picture of the human spirit. Neuropsychological functions involved in constructing and responding to the narratives by which we form our identities and build meaningful lives include memory, attention, emotional marking, and temporal sequencing. It is the neural substrate, the emotional shaping, and the narrative structuring of higher cognitive function that provide the sine qua non for the construction of meaning, relationship, morality, and purpose that extend beyond our personal boundaries, both spatial and temporal. This includes a neural affect system shaped by our developmental dependency, the dynamic narratives of self formed in the development of identity and reconstructed over the life span, drawing on culturally available mythic and storied forms. Narrative constitutes our movement in moral space and may have the potential both for healing and for disruption for us as individuals and as a species, providing a contingent solution to the alienation and fragmentation of personhood, relationship, and community.