In this article, we consider three metaphysical theories of personal identity: the soul theory, the body theory, and the psychological theory. Clinical cases are discussed as they present conceptual problems for each of these theories. For the soul theory, the case of Phineas Gage, and cases of pedophilic behavior due to a brain tumor are discussed. For the body theory, hypothetical cases of cephalosomatic anastomosis and actual cases of dicephalic parapagus and craniopagus parasiticus are discussed. (...) For the psychological theory, cases of delusions and memory impairments are discussed. After a discussion of all these cases, we conclude that it is very difficult to unequivocally favor one of these theories, yet we argue that this discussion must be based not on abstract armchair speculation, but rather, consideration of real clinical cases. (shrink)

This paper focuses on three theories of personal identity that incorporate the idea that personal identity is the result of a person’s adopting certain attitudes towards certain mental states and actions. I call these theories subjective theories of personal identity. I argue that it is not clear what the proponents of these theories mean by “personal identity”. On standard theories, such as animalism or psychological theories, (...) the term “personal identity” refers to the numerical identity of persons and its analysis provides the persistence conditions for persons. I argue that if the subjective theories purport to provide a criterion of numerical personal identity, they fail. A different interpretation may suggest that they purport to provide a non-numerical type of identity for the purpose of providing plausible analyses of certain identity-related practical concerns. I argue that the criteria the subjective theories provide fail to capture several of the identity-related concerns. As a result, this interpretation must be rejected as well. (shrink)

A philosophical account of personal identity - in terms of the maintenance of fundamental beliefs, principles and commitments by spatiotemporally continuous particulars - is sketched, an account which is able to incorporate a social and relational conception of personal identity, and thus serve as the basis for a social psychological theory of personal identity - in terms of the pursuit of identity projects’within social collectives. Some implications of this theory are developed, concerning (...) the relation between identity and individualism, responsibility and social labeling. The theory develops an account of the social constitution of personal identity that is consistent with a realist conception of social psychological theories of identity: as objective theoretical descriptions of the social dimensions of identity. (shrink)

By attending just to conceptual analysis and metaphysics in connection with Locke's theory of personal identity, but ignoring psychology, one can know that, in Locke's view, consciousness via memory unifies persons over time, but not how consciousness unifies persons, either over time or at a time, nor why, for Locke, the mechanisms of self-constitution are crucially important to personal identity. In explaining Locke's neglected thoughts on the psychology of personal identity, I argue, first, that (...) he was not trying to analyze personal identity so as to allow that persons could persist through change of substance and were accountable for their thoughts and deeds and, second, that to do this Locke tried to explain how persons are byproducts of the development in at least normal humans of reflexive consciousness. (shrink)

Studying personal identity, the continuity and sameness of persons across lifetimes, is notoriously difficult and competing conceptualizations exist within philosophy and psychology. Personal reidentification, linking persons between points in time is a fundamental step in allocating merit and blame and assigning rights and privileges. Based on Nozick’s closest continuer theory we develop a theoretical framework that explicitly invites a meaningful empirical approach and offers a constructive, integrative solution to current disputes about appropriate experiments. Following Nozick, reidentification involves (...) judging continuers on a metric of continuity and choosing the continuer with the highest acceptable value on this metric. We explore both the metric and its implications for personal identity. Since James, academic theories have variously attributed personal identity to the continuity of memories, psychology, bodies, social networks, and possessions. In our experiments, we measure how participants weighted the relative contributions of these five dimensions in hypothetical fission accidents, in which a person was split into two continuers. Participants allocated compensation money or adjudicated inheritance claims and reidentified the original person. Most decided based on the continuity of memory, personality, and psychology, with some consideration given to the body and social relations. Importantly, many participants identified the original with both continuers simultaneously, violating the transitivity of identity relations. We discuss the findings and their relevance for philosophy and psychology and place our approach within the current theoretical and empirical landscape. (shrink)

As witnessed by recent films such as _Fight Club_ and _Identity_, our culture is obsessed with multiple personality—a phenomenon raising intriguing questions about personal identity. This study offers both a full-fledged philosophical theory of personal identity and a systematic account of multiple personality. Gunnarsson combines the methods of analytic philosophy with close hermeneutic and phenomenological readings of cases from different fields, focusing on psychiatric and psychological treatises, self-help books, biographies, and fiction. He develops an original (...) account of personal identity and offers a provocative interpretation of multiple personality: in brief, "multiples" are right about the metaphysics but wrong about the facts. (shrink)

David lewis has argued that--Despite the 'fission' cases--One may consistently hold both that what matters in survival is "mental continuity and connectedness" and that what matters in survival is identity. To prove his point, He produces a certain theory of persons. Derek parfit and penelope maddy have objected that the theory lewis produces does not actually have the advantages he claims for it. In this paper, The author questions their objections, And then argues that, Even though lewis's theory has (...) many virtues, No sufficiently knowledgeable person can be justified in accepting it (here and now) as an adequate theory of persons. (shrink)

Massimo Marraffa and Cristina Meini re-connect the psychology of identity with its philosophical roots in this study. They trace the contemporary problem of the self to John Locke and William James' foundational theories on personal identity. By integrating the philosophy of identity with empirical and neuropsychological research, Marraffa and Meini provide an original synthesis of multidisciplinary conceptions of the self. The Developmental Psychology of Personal Identity builds on Chomsky-inspired developmental psychology, Jean Piaget's constructivism, (...) Lev Vygotskij's sociocultural perspective on development and John Bowlby's attachment theory. In this theoretical framework, the book draws on the data of the psychological sciences to reconstruct the trajectory of the self as a 'Lockean person' (i.e., as morally responsible agent). The authors link the birth of self-consciousness through the body and emotions to the construction of a narrative self. Their combination of philosophy and cognitive sciences makes an important contribution to multiple disciplines concerned with personal identity. It provokes new routes to understanding identity and self, autobiographical memory, and personality. (shrink)

The problem of diachronic personal identity is this: what explains why a person P1 at time T1 is numerically identical with a person P2 at a later time T2, even if they are not at those times qualitatively identical? One traditional explanation is the soul theory, according to which persons persist in virtue of their nonphysical souls. I argue here that this view faces a new and arguably insuperable dilemma: either souls, like physical bodies, change over time, in (...) which case the soul theory faces an analogue problem of diachronic soul identity, or souls, unlike physical bodies, do not change over time, in which case the soul theory cannot explain why souls relate to particular bodies over time and so at best only partially explains personal identity. I conclude that the soul theory fares no better than physicalist-friendly accounts of personal identity such as bodily- or psychological-continuity-based views. (shrink)

The article defends the thesis that in the context of moral responsibility (MR) as it is un­derstood in modern Strawsonian theories of MR, psychological approach has significant advantages in comparison with competing approaches to personal identity problem: bio­logical approach, substantialism and narrative view. In the Strawsonian theories, two gen­erally accepted necessary conditions of the appropriateness of holding someone responsi­ble are the conditions of moral agency and agency of action. The article shows that for these conditions (...) to be satisfied a person who is to be hold morally responsible now for some past action should stay not only numerically, but also qualitatively identical in re­spect to his quality of will and moral capacities. That raises the problem of personal iden­tity over time in the context of MR. It is shown that psychological approach helps to clar­ify the kind of personal identity that is required for the conditions of moral agency and agency of action to be satisfied, it is compatible with all the Strawsonian theories of MR and copes with much of moral collisions that are usually presented as its problematic con­sequences. It is also shown that the competing approaches to personal identity are either cannot clarify the relevant for MR kind of personal identity, or incompatible with most of the Strawsonian theories of MR and leads to moral collisions. That gives strong reasons to prefer the psychological approach to personal identity in the context of MR. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:REID' S CRITICISM OF HUME'S THEORY OF PERSONAL IDENTITY One of the most interesting philosophical controversies is that between Reid and Hume, considered as representatives of two different sorts of empiricism. Hume, for these purposes, represents 'radical' empiricism, and the attempt to base knowledge solely on experience and what can be validly inferred from it, regardless of how far this leads one from everyday notions and beliefs. (...) Reid, in contrast, represents 'common sense' empiricism, and the view that the. results of experience and deduction must conform to a number of 'first principles or intuitive judgments' (Essays on the intellectual powers of man, VI, 4), which aie unprovable, but which no one can avoid accepting. It is important to be clear about the status of Reid' s 'intuitive judgments', or 'principles of common sense'. They are not merely the general beliefs of a particular culture, which could be 'vulgar errors or preJUdICeS''. Nor are they merely beliefs generally held by people uncorrupted by philosophy. They are assumptions which have to be made if theoretical or practical activity is to be possible at all, principles which are always accepted in practice even by those who deny them in theory. For example, although the uniformity of nature is not a logically necessary truth, everybody always thinks and acts in ways that presuppose that it is true: 'Nature is governed by fixed laws, and if it were not so, there could be no such thing as prudence in human conduct.... the whole fabric of natural philosophy is built upon this principle.' (Essays, VI, 5) Again, everyone, even a theoretical determinist, makes moral judgments and deliberates what to do; and these activities presuppose a belief in human free will. (Essays, ibid.) Hume himself, as Reid was aware, accepted the validity of some principles of this sort, notably of the 42. uniformity of nature. But Reid was dissatisfied with Hume's account, partly because he thought Hume had rejected far too much, and partly because of the grounds Hume gives for accepting, for example, the validity of induction, and the existence of the external physical world. Hume regards these beliefs as non-rational, and deriving from our psychological make-up; it is nature and not reason which causes the belief in an ordered physical reality. In Hume's eyes this is a sufficient justification: if our nature compels us to believe something, this is as good a ground for believing it as any other. Reid, on the other hand, believed, first, that there were many more principles of this sort than Hume had acknowledged, and secondly, that the justification of them was rational, and not merely psychologically determined, since it was based on the impossibility of thinking and acting coherently without them. Hence, even though Hume builds up with one hand what he pulls 'down with the other, and destroys the rational basis for belief only to replace it by one based on human nature and psychology, Reid continues to treat him as the archsceptic. In constructing his list of first principles in Essays, VI, 5, Reid explicitly or implicitly attacks Hume's 'scepticism' on five points - the existence of the mind; the existence of the physical world and the reliability of our senses; the reliability of memory; the reliability of reason; and the uniformity of nature. Against this scepticism he deploys three types of argument. The first is the argument from the universal beliefs of mankind, particular!/ as displayed in the structural features supposedly common to all languages. The second is the argument that the position of the sceptic is, when its consequences are worked out, either self-contradictory or incoherent. And the third is the argument already mentioned, that this position is inconsistent with other beliefs which the sceptic inevitably holds, since he thinks and acts in ways which are 43. inconsistent with their falsity, and cannot avoid doing so. To assess the force of Reid' s attacks, we have to consider both the strength of arguments of this sort in general and whether they apply in all these five cases. In this article, I want to concentrate on the first issue of the five, that of personal identity. Apart from displaying Reid... (shrink)

The vast advances in biometrics over the past several decades have brought with them a host of pressing concerns. Philosophical scrutiny has already been devoted to many of the relevant ethical and political issues, especially ones arising from matters of privacy, bias, and security in data collection. But philosophers have devoted surprisingly little attention to the relevant metaphysical issues, in particular, ones concerning matters of personal identity. This paper aims to take some initial steps to correct this oversight. (...) After discussing the philosophical problem of personal identity, the ways in which the notion of biometric identity connects with, or fails to connect with, the philosophical notion of personal identity is explored. Though there may be some good reasons to use biometric identity to track personal identity, it is contended that biometric identity is not the same thing as personal identity and thus that biometrics researchers should stop talking as if it were. (shrink)

In his early works, Derek Parfit famously defended revisionary reductionism about personhood. According to this view, facts about personal identity consist in the holding of more particular psychological facts, which can be described wholly impersonally. He also argued that, in some cases, the truth of this view makes questions about diachronic personal identity empty questions to which no meaningful answers can be given. Yet, in his later works, Parfit defends several ethical theories such as (...) contractualism and rule-consequentialism, which seem to rely on exactly the kind of determinate notion of personal identity to which he objected earlier. Parfit, furthermore, never explored reductionism’s consequences for such theories in his later works. In order to solve this interpretative puzzle, this chapter tries to argue that, even if they are seemingly conflicting, Parfit’s views on personal identity and rule-consequentialism, Scanlonian contractualism, and Kantian contractualism do form a coherent and unified whole. (shrink)

Philosophy sometimes has the reputation of dealing with matters outside the realm of ‘everyday life’, and trading in ideas that float free from anything beyond the armchair in which we sit contemplating them. In this paper, I discuss a standard armchair-branch of philosophy – personal identity theory – and the real-life effects it either has had or has apparently failed to have upon two philosophers: David Hume and Derek Parfit. Both arrive at similar and quite radical beliefs about (...) personal identity. And both have documented the difficulty of sustaining these beliefs in their day-to-day lives. For those considering embarking upon philosophical study – whether formally or not – this last point may seem discouraging, reinforcing a picture of a discipline that even on the admission of its own practitioners has little impact on everyday life or concerns. I will explore these two philosophers’ views on personal identity in some detail, and outline the conflicts which they claim to exist between their philosophical and non-philosophical thinking. I will go on to propose that these conflicts do not in fact reinforce an opposition between everyday life and philosophy. (shrink)

Marya Schechtman offers a new theory of personal identity, which captures the importance of being able to reidentify people in our daily lives. She sees persons as loci of practical interaction, and defines the unity of such a locus in terms of biological, psychological, and social functions, mediated through social and cultural infrastructure.

The concept of the individual and his/her motivations is a bedrock of philosophy. All strands of thought at heart contain to a particular theory of the individual. Economics, though, is guilty of taking this hugely important concept without questioning how we theorize it. This superb book remedies this oversight. The new approach put forward by Davies is to pay more attention to what moral philosophy may offer us in the study of personal identity, self consciousness and will. This (...) crosses the traditional boundaries of economics and will shed new light on the distinction between positive and normative analysis in economics. With both heterodox and orthodox economics receiving a thorough analysis from Davies, this book is at once inclusive and revealing. (shrink)

Our aim in this entry is to articulate the state of the art in the moral psychology of personal identity. We begin by discussing the major philosophical theories of personal identity, including their shortcomings. We then turn to recent psychological work on personal identity and the self, investigations that often illuminate our person-related normative concerns. We conclude by discussing the implications of this psychological work for some contemporary philosophical theories and (...) suggesting fruitful areas for future work on personal identity. (shrink)

It is commonly argued that a serious right to life is grounded only in actual, relatively advanced psychological capacities a being has acquired. The moral permissibility of abortion is frequently argued for on these grounds. Increasingly it is being argued that such accounts also entail the permissibility of infanticide, with several proponents of these theories accepting this consequence. We show, however, that these accounts imply the permissibility of even more unpalatable acts than infanticide performed on infants: organ harvesting, (...) live experimentation, sexual interference, and discriminatory killing. The stronger intuitions against the permissibility of these ‘pre-personal acts’ allow us to re-establish a comprehensive and persuasive reductio against psychological accounts of persons. (shrink)

Substantive theories of diachronic identity have been offered for different kinds of entities. The kind of entity whose diachronic identity has received the most attention in the literature is person, where such theories as the psychological theory, the body theory, the soul theory, and animalism have been defended. At the same time, Wittgenstein's remark that ?to say of two things that they are identical is nonsense, and to say of one thing that it is identical (...) with itself is to say nothing at all? suggests that the idea of further analysing identity is mistaken at root. I shall offer a simple, deflationary theory that reduces diachronic identity to quantification, synchronic identity and existence at a spacetime location (or at a time, for non-spatial entities). On logical grounds, the theory is guaranteed to have no counterexamples. Because the theory is guaranteed to have no counterexamples, all the imaginative examples offered as intuitive support for theories of personal identity are going to be either incorrect or compatible with the theory. I shall argue that the deflationary theory is preferable on simplicity grounds to typical substantive theories, and that various problems that are commonly thought to concern diachronic identity are better seen as about something else. (shrink)

The paper presents considerations that weigh against one or another version of the psychological continuity theory of personal identity over time. Such Locke-like theories frequently go wrong, it is argued, in not formulating precisely how the psychological states of an individual person are related diachronically, in failing to capture a truly appropriate causal connection between later and earlier psychological states, and in claiming support from particular cases. In addition, the paper offers examples and other (...) considerations that support an alternative, biological continuity theory according to which you and I are each identical with a human organism. (shrink)

Theories of personal identity in the tradition of John Locke and Derek Parfit emphasize the importance of psychological continuity and the abilities to think, to remember and to make rational choices as a basic criterion for personhood. As a consequence, persons with severe dementia are threatened to lose the status of persons. Such concepts, however, are situated within a dualistic framework, in which the body is regarded as a mere vehicle of the person, or a carrier (...) of the brain as the organ of mental faculties. Based on the phenomenology of embodiment, this paper elaborates a different approach to personal identity in dementia. In this perspective, selfhood is primarily constituted by pre-reflective self-awareness and the body memory of an individual, which consists in the embodiment and enactment of familiar habits, practices and preferences. After describing the different types of body memory, the paper develops a phenomenology of dementia as a loss of reflexivity and meta-perspective. This is contrasted with the preservation of individual forms of body memory even in the later stages of the illness. The ethical consequences of an embodied approach to dementia are outlined. A final look is given to narrativistic and constructionist concepts of the self in dementia. (shrink)

This book traces the development of theories of the self and personal identity from the ancient Greeks to the present day. From Plato and Aristotle to Freud and Foucault, Raymond Martin and John Barresi explore the works of a wide range of thinkers and reveal the larger intellectual trends, controversies, and ideas that have revolutionized the way we think about ourselves. The authors open with ancient Greece, where the ideas of Plato, Aristotle, and the materialistic atomists laid (...) the groundwork for future theories. They then discuss the ideas of the church fathers and medieval and Renaissance philosophers, including St. Paul, Philo, Augustine, Aquinas, and Montaigne. In their coverage of the emergence of a new mechanistic conception of nature in the seventeenth century, Martin and Barresi note a shift away from religious and purely philosophical notions of self and personal identity to more scientific and social conceptions, a trend that has continued to the present day. They explore modern philosophy and psychology, including the origins of different traditions within each discipline, and explain both the theoretical relevance of feminism and gender and ethnic studies and also the ways that Derrida and other recent thinkers have challenged the very idea that a unified self or personal identity even exists. Martin and Barresi cover a number of issues broached by philosophers and psychologists, such as the existence of a fixed and unchanging self and whether the concept of the soul has a use outside of religious contexts. They address the question of whether notions of the soul and the self are still viable in today's world. Together, they reveal the fascinating ways in which great thinkers have grappled with these and other questions and the astounding impact their ideas have had on the development of self-understanding in the west. (shrink)

When talking about personal identity in the context of medical ethics, ethicists tend to borrow haphazardly from different philosophical notions of personal identity, or to abjure these abstract metaphysical concerns as having nothing to do with practical questions in medical ethics. In fact, however, part of the moral authority for respecting a patient’s self-regarding decisions can only be made sense of if we make certain assumptions that are central to a particular, psychological picture of (...) class='Hi'>personal identity, namely, that patients will remain psychologically connected to a certain degree with their future selves. I draw this out, show problems with approaches in medical ethics based on alternate theories of personal identity that do not recognise this, and explore some important implications. Namely, I show how this recognition can better explain the circumstances under which we should respect advance directives and why, and how it can better make sense of patient fears that they will not "survive" personality-altering deep brain stimulation procedures, and provide guidance on approaching patient decisions concerning this type of procedure in a manner that captures and addresses such concerns. (shrink)

Olson (1997a) tries to refute the Psychological Approach to personal identity with his Fetus Argument, and Mackie (1999) aims to do the same with the Death Argument. With the help of a suggestion made by Baker (1999), the following discussion shows that these arguments fail. In the process of defending the Psychological Approach, it is made clear exactly what one is and is not committed to as a proponent of the theory.

In lieu of an abstract, here is a brief excerpt of the content:Philosophy, Psychiatry, & Psychology 12.1 (2005) 25-26 [Access article in PDF] Past Personal Identity Markus L. A. Heinimaa Keywords consciousness, Freud, Locke, personal identity, self-understanding Schechtman's paper presents us with two lines of reasoning, which deserve separate discussion. First, she proposes a novel reading of John Locke's well-known discussion of personal identity and, second, she suggests a way of surmounting difficulties she sees (...) both Lockean view and psychological continuity theories have in dealing with the notion of nonconscious experiences.The criticism that she makes on contemporary theorists basing their view on Locke's work on personal identity (in terms of psychological continuity) seems by and large valid. Schechtman aptly points out that by concentrating on memory as the main constituent of personal identity, they are compelled to appeal to intuitions that are the very target of Locke's criticism (Schechtman 2005, 9) and she proposes that we should focus on Locke's original contention that consciousness is the unifying feature of personal identity. In her reading, this is spelled out as self-referential intelligibility, as capacity to understand oneself as a coherent "process." As far as I can see this description certainly gives a truer reading of Locke than a memory-based account.The second line of reasoning concerns the seeming dilemma she faces when accounting for "unconscious experiences" impact on personhood, as they clearly are "part of our psychological lives" (Schechtman 2005, 16). Here she suggests that developing "Locke's insight in a more satisfying way" is possible in terms of "self-understanding view." She points out how this experiential intelligibility is threatened by in everyday life prevalent bafflement on some of the feelings we have and acts we do. Following Descartes and Freud's examples, this (apparent) unintelligibility is dealt by hypothesizing unconscious "memories or desires or motivations," which then impact our "psychological lives."A question arises here: Is Schechtman's account of personal identity really threatened by the notion of "unconscious experience"? As I see it, a certain streak of psychologism in her writing makes her otherwise coherent account vulnerable in this respect. When assuming that "experiences of which we are not conscious can be a part of our psychological lives" (Schectman 2005, 16), she effectively equates being a person with "psychological being" or being a "psychological subject" (Schechtman 2005, 17). But what work is the notion "psychological" doing here? As far as I can see it, Schechtman could account for Lockean conception of "personal identity" in terms of "consciousness" solely in terms of "process of self-understanding." Of course psychological accounts of personal identity or consciousness are readily available, but the suggested description of the logic of these concepts does [End Page 25] not necessitate them—any such an account is in a sense extraneous to the logic of these concepts.What is suggested here does not basically contradict Schechtman's account of the relation of unconscious to personal identity but only suggests that this account is superfluous. Further, her (mainstream) reading of Freud misses some interesting features of Freud's problematic. In his paper "Psychoanalysis and the personal," Morris Eagle (1988) proposes interpreting Freud's distinction between conscious and unconscious psychological phenomena as the distinction between what is experienced as belonging to one's person and what is experienced as alien in this respect—in terms of "ownership and disownership of mental contents" (Eagle 1988, 92) and concludes that Freudian psychoanalytic theory can be read as being primarily concerned with the problems a person encounters in trying to keep his experience of himself as a person coherent.This reading of Freud has implications for Schechtman's reinterpretation of Locke's conception of personal identity as self-understanding, as the question on the impact of nonconscious phenomena on personal identity would seem to lose its significance here. A more deep going probing into the logic of the Freudian concept of unconscious would be warranted in this context.All in all, Schechtman's account of "personal identity" clearly moves into a sound direction. Yet, one could focus even more closely on Locke's original work and ask about the... (shrink)

Philosophically, the most interesting objection to the reliance on advance directives to guide treatment decisions for formerly competent patients is the argument from the loss of personal identity. Starting with a psychological continuity theory of personal identity, the argument concludes that the very conditions that bring an advance directive into play may destroy the conditions necessary for personal identity, and so undercut the authority of the directive. In this article, I concede that if (...) the purpose of a theory of personal identity is to provide an answer to the question What is it for a person to persist over time?, then reflection on personal identity poses a potentially serious threat to the moral authority of advance directives. However, as Marya Schechtman observes, questions about how a single person persists through change are not what most of us are interested in when we think about who a person is. Rather, we are interested in what it means to say that a particular set of actions, experiences, and characteristics is that of a given person rather than someone else. (shrink)

Available from UMI in association with The British Library. Requires signed TDF. ;In this thesis I argue that we ought to accept some version of the Analysis view--the view that the identity of a person over time can be analysed in terms of physical and/or psychological continuities. I also argue that there is no sense in which we ought to be ontological reductionists about persons--a person is an essentially embodied, irreducible, entity whose identity over time is analysable (...) in terms of physical and psychological continuities. ;I argue that any plausible theory of personal identity over time is a best-candidate theory, which implies that the identity of a person over time can be extrinsically determined. Some philosophers find this consequence absurd; but I claim that they have no good reason to. I also show how reference to the extrinsicness of identity features in a powerful argument for Derek Parfit's thesis that identity is not "what matters". Finally, I argue that there are plausible counter-examples to all versions of the Physical and Psychological Criteria of personal identity, and that we ought to accept a version of the Mixed Criterion which acknowledges the importance of both sorts of continuity, but which assigns greater weight to the relation of psychological continuity. (shrink)

The project takes as its starting point our conflicting intuitions about personal identity exposed by Bernard Williams' thought experiment involving the switching of bodies in "The Self and the Future." The conflicted intuitions are identified as animalist and psychologist and correspond roughly with the two major approaches to personal identity. The traditional strategy to resolve the conflict---thought experiments---is critically examined and the project concludes that proper thought experiments will reveal the conflict but are unlikely to resolve (...) it. A new reading of the conflict is proposed. The concept of the person is a cluster concept with distinct components: biological human beings, rational agency and psychological continuity, where the latter is construed as the temporal analog of phenomenological unity at a time. The project then suggests that moral theory is best pursued not by a naturalist conception of persons that unites the components of the cluster, but by a novel conception that separates them. This can be accomplished best by eliminating the concept of the person altogether. Objections that the concept of the person is ineliminable are considered and rejected, as are objections that the nature of conflict is not reason enough to abandon the concept. Personhood's centrality for value theory is questioned and the eliminativist strategy is defended on the grounds that responsibility, self-concern and moral rights are best analyzed with the component concepts instead of the cluster concept. Eliminativism is therefore preferable to competing accounts of personal identity because the former is better suited for moral theory. Among the advantages are the ability to: attribute responsibility to group agents without calling them persons, make sense of our conflicting demonstrations of self-concern without taking them as evidence for conflicting theories of personal identity, and attribute moral rights to entities who fail to meet traditional criteria for personhood but who are nonetheless entitled to moral respect. (shrink)

In contemporary western philosophy, there are two major positions on the issue of personal identity, the one upholding the substantive notion of an enduring ego, the other rejecting the idea of an enduring subject completely. While the substantive position seems to be untenable in the light of contemporary cognitive science and philosophy of mind, the rejection of an enduring agency has left unanswered the questions of subjective agency, ethical responsibility and accountability. In contrast to these approaches, Buddhism has (...) long upheld a conception which, while rejecting the problematic notion of an enduring person or self, does not dispense with the notion of subjective agency. My dissertation will formulate such a non-substantive notion of personhood based on the Buddhist theory of self-cultivation. ;My dissertation commences with a critique of the present theories of personal identity and the assumptions underlying the very notion of personal identity. In the light of this criticism, the notion of "Mensch-sein" seems to be more appropriate than the notion of "personal identity." With this as a basis, the dissertation offers a new conception of Mensch-sein, drawing on Dogen's theory of self-cultivation and Jung's notion of individuation. It will especially investigate the phenomena of selfhood, alterity, and continuity. It is my belief that such an understanding of Mensch-sein not only contributes to a comparative philosophy of personhood and of the mind but also provides a conceptual tool to understand latest developments in cognitive science and psychology. Thus, it illustrates that the study of religion contributes to the systematized understanding of the world. (shrink)

Some theories of personal identity allow persons to lose their identities in processes of qualitative change, i.e., to become a numerically different person by getting new physical and/or psychological properties. I shall call these theories strong. Weak theories, in contrast, do not allow for such a loss of identity. In general, weak theories put less restrictions on personal identity than strong ones. I will argue that each type of theory faces (...) a serious problem. (shrink)

Sydney Shoemaker leads today’s “neo-Lockean” liberation of persons from the conservative animalist charge of “neo-Aristotelians” such as Eric Olson, according to whom persons are biological entities and who challenge all neo-Lockean views on grounds that abstracting from strictly physical, or bodily, criteria plays fast and loose with our identities. There is a fundamental mistake on both sides: a false dichotomy between bodily continuity versus psychological continuity theories of personal identity. Neo-Lockeans, like everyone else today who relies (...) on Locke’s analysis of personal identity, including Derek Parfit, have either completely distorted or not understood Locke’s actual view. Shoemaker’s defense, which uses a “package deal” definition that relies on internal relations of synchronic and diachronic unity and employs the Ramsey–Lewis account to define personal identity, leaves far less room for psychological continuity views than for my own view, which, independently of its radical implications, is that (a) consciousness makes personal identity, and (b) in consciousness alone personal identity consists—which happens to be also Locke’s actual view. Moreover, the ubiquitous Fregean conception of borders and the so-called “ambiguity of is” collapse in the light of what Hintikka has called the “Frege trichotomy.” The Ramsey–Lewis account, due to the problematic way Shoemaker tries to bind the variables, makes it impossible for the neo-Lockean ala Shoemaker to fulfill the uniqueness clause required by all such Lewis style definitions; such attempts avoid circularity only at the expense of mistaking isomorphism with identity. Contrary to what virtually all philosophers writing on the topic assume, fission does not destroy personal identity. A proper analysis of public versus perspectival identification, derived using actual case studies from neuropsychiatry, provides the scientific, mathematical and logical frameworks for a new theory of self-reference, wherein “consciousness,” “self-consciousness,” and the “I,” can be precisely defined in terms of the subject and the subject-in-itself. (shrink)

As persons, we are importantly different from all other creatures in the universe. But in what, exactly, does this difference consist? What kinds of entities are we, and what makes each of us the same person today that we were yesterday? Could we survive having all of our memories erased and replaced with false ones? What about if our bodies were destroyed and our brains were transplanted into android bodies, or if instead our minds were simply uploaded to computers? -/- (...) In this engaging and accessible introduction to these important philosophical questions, Amy Kind brings together three different areas of research: the nature of personhood, theories of personal identity over time, and the constitution of self-identity. Surveying the key contemporary theories in the philosophical literature, Kind analyzes and assesses their strengths and weaknesses. As she shows, our intuitions on these issues often pull us in different directions, making it difficult to develop an adequate general theory. Throughout her discussion, Kind seamlessly interweaves a vast array of up-to-date examples drawn from both real life and popular fiction, all of which greatly help to elucidate this central topic in metaphysics. -/- A perfect text for readers coming to these issues for the first time, Persons and Personal Identity engages with some of the deepest and most important questions about human nature and our place in the world, making it a vital resource for students and researchers alike. (shrink)

In this paper, I first consider a famous objection that the standard interpretation of the Lockean account of diachronicity (i.e., one’s sense of personal identity over time) via psychological connectedness falls prey to breaks in one’s personal narrative. I argue that recent case studies show that while this critique may hold with regard to some long-term autobiographical self-knowledge (e.g., episodic memory), it carries less warrant with respect to accounts based on trait-relevant, semantic self-knowledge. The second issue (...) I address concerns the question of diachronicity from the vantage point that there are (at least) two aspects of self—the self of psychophysical instantiation (what I term the epistemological self) and the self of first person subjectivity (what I term the ontological self; for discussion, see Klein SB, The self and its brain, Social Cognition, 30, 474–518, 2012). Each is held to be a necessary component of selfhood, and, in interaction, they are appear jointly sufficient for a synchronic sense of self (Klein SB, The self and its brain, Social Cognition, 30, 474–518, 2012). As pertains to diachronicity, by contrast, I contend that while the epistemological self, by itself, is precariously situated to do the work required by a coherent theory of personal identity across time, the ontological self may be better positioned to take up the challenge. (shrink)

The increasing number of dementia cases has led to renewed interest in philosophical theories of personal identity, because these patients seem to “drop out” of their own identities in some ways. Philosophical positions that try to account for the phenomenon of identity loss include numerical theories of identity which argue for a psychological or a biological continuity criterion, narrative theories of identity, as well as reflections about different forms of memory, some (...) of which have had influence in modern psychology and in the neurosciences. This special issue brings together current articles by experts in these areas. ------ Die zunehmende Verbreitung von Demenzerkrankungen hat zu einem erhöhten Interesse an philosophischen Theorien der personalen Identität geführt, da diese Patienten in manchen Hinsichten aus ihrer eigenen Identität „herauszufallen“ scheinen. Zu den philosophischen Ansätzen, die sich hiermit beschäftigen, gehören Theorien der numerischen Identität, wie etwa das psychologische oder das biologische Kontinuitätskriterium, narrative Theorien der Identität, aber auch Refl exionen über verschiedene Formen des Erinnerns, die sich zum Teil in der modernen Psychologie und in den Neurowissenschaften niederschlagen. Dieses Schwerpunktheft enthält aktuelle Beiträge von Experten aus den genannten Bereichen. ​The increasing number of dementia cases has led to renewed interest in philosophical theories of personal identity, because these patients seem to “drop out” of their own identities in some ways. Philosophical positions that try to account for the phenomenon of identity loss include numerical theories of identity which argue for a psychological or a biological continuity criterion, narrative theories of identity, as well as reflections about different forms of memory, some of which have had influence in modern psychology and in the neurosciences. This special issue brings together current articles by experts in these areas. (shrink)

Parfit's reductionist theory of personal identity states that a person's persistence through time is just a matter of psychological continuity and connectedness. He uses this theory to argue against the requirement of equal concern: the view that a rational person should be equally concerned about all parts of her future. The argument is that since psychological connectedness is one of grounds of a person's concern for her future and since connectedness is weaker over longer periods, it (...) follows that a person can rationally care less about her more distant future. I argue that Parfit's argument fails because the principles it employs generate counterexamples. I conclude by showing that if Parfit's view is modified so as to avoid these counterexamples, his argument against the requirement dissolves. (shrink)

The problem of personal identity is often said to be one of accounting for what it is that gives persons their identity over time. However, once the problem has been construed in these terms, it is plain that too much has already been assumed. For what has been assumed is just that persons do have an identity. A new interpretation of Hume's no-self theory is put forward by arguing for an eliminative rather than a reductive view (...) of personal identity, and by approaching the problem in terms of phenomenology, Buddhist psychology, and the idea of a constructed self-image. (shrink)

Theories of personal identity purport to specify truth conditions for sentences of the form 'x-at-ti is the same person as y-at-tj. Most philosophers nowadays agree that such truth conditions are to be stated in terms of psychological continuity. However; opinions vary as to how the notion of psychological continuity is to be understood. In a recent contribution to this journal, Slors offers an account in which psychological continuity is spelled out in terms of narrative (...) connectedness between mental states.The present paper argues that Slors' theory either is no theory of personal identity at all or is too weak.Towards the end of the paper, it is indicated how the problem uncovered for Slors' theory may be avoided. (shrink)

Locke’s account of personal identity has been highly influential because of its emphasis on a psychological criterion. The same consciousness is required for being the same person. It is not so clear, however, exactly what Locke meant by ‘consciousness’ or by ‘having the same consciousness’. Interpretations vary: consciousness is seen as identical to memory, as identical to a first personal appropriation of mental states, and as identical to a first personal distinctive experience of the qualitative (...) features of one’s own thinking. There is wide agreement, however, that Locke’s theory of personal identity is meant to complement his moral and theological commitments to a system of divine punishment and reward in an afterlife. But these commitments seem to require also a metaphysical criterion, and Locke is insistent that it cannot be substance. The difficulty reconciling the psychological and metaphysical requirements of the theory has led, at worst, to charges of incoherence and, at best, to a slew of interpretations, none of which is widely accepted. (shrink)

The present paper critically reconstructs Honneth’s recognition-theoretical conception of justice modelled on the formation of intact personal identity or self-realization. It looks into the status of using psychological evidence as a basis for a theory of justice, and whether or not such an approach of justice fails the publicity criterion.The claim is that although Honneth’s thesis is potentially susceptible to the charge of psychologization of injustice as Fraser alleges, the idea that recognition impacts on the formation or (...) malformation of personal identity should not be denied a critical role in a theory of justice. Doing so prevents a faceless or subject-less discourse of injustice.The paper also argues that recognitive justice founded on very specific moral-psychological assumptions passes the test of publicity. The challenge is how to establish the necessary conditions that enable victims of misrecognition to have a language and name their experience of suffering publicly. (shrink)

This paper examines the role of episodic memory, and the broader notion of “mental time travel” (MTT), in constituting personal identity. After arguing that the construal of memory’s role in personal identity found in traditional psychological continuity theories of personal identity is both unrealistic and unsatisfying, the paper endeavors to provide a better account. This begins with recent work in the science and philosophy of memory that sees episodic memory as part of (...) a broader faculty for MTT (which also involves imagination and counterfactual thought). Some of the basic ideas expressed in this work are developed into an account of the connection between MTT with “strong identification” and personal identity. According to this alternative approach, we regularly “borrow affect” from our pasts and futures through forms of remembering, imagining, and counterfactual thinking that involve a particular form of identification with our past and future selves. This activity generates a strong diachronic experience of self, which contributes in important ways to diachronic personal identity. The sense of self generated through MTT is, however, only one piece of a more comprehensive account of personal identity. The paper concludes by describing its place in the larger picture. (shrink)

This paper re-evaluates Derek Parfit’s attack on the commonly held view that personal identity is necessarily determinate and that it is what matters. In the first part we first argue against the Humean view of personal identity; secondly, we classify the remaining alternatives into three kinds: the body theory and the brain theory, the quasi-Humean theory, and the soul theory, and thirdly we deploy Parfit’s arguments and related considerations to the point that none of the materialistic (...) alternatives is consistent with the commonly held view. This leaves us with the alternative: either we accept the radical and highly implausible materialistic view Parfit calls ‘Reductionism’, or we accept the view that we are nonphysical indivisible entities—Cartesian egos, or souls. The second part of the paper discusses Parfit’s objections against the Cartesian view: that there is no reason to believe in the existence of such nonphysical entities; that if such entities exist, there is no evidence that they are enduring ; that even if they exist and are enduring, they are irrelevant for the psychological profile and temporal continuity of a person; that experiments with ‘brain-splitted’ patients provide strong evidence against the Cartesian view. We argue that these objections are in part mistaken, and that the remaining part is not strong enough to make the Cartesian view less plausible than Reductionism. (shrink)

This paper explores the implications of extended and distributed cognition theory for our notions of personal identity. On an extended and distributed approach to cognition, external information is under certain conditions constitutive of memory. On a narrative approach to personal identity, autobiographical memory is constitutive of our diachronic self. In this paper, I bring these two approaches together and argue that external information can be constitutive of one’s autobiographical memory and thus also of one’s diachronic self. (...) To develop this claim, I draw on recent empirical work in human-computer interaction, looking at lifelogging technologies in both healthcare and everyday contexts. I argue that personal identity can neither be reduced to psychological structures instantiated by the brain nor by biological structures instantiated by the organism, but should be seen as an environmentally-distributed and relational construct. In other words, the complex web of cognitive relations we develop and maintain with other people and technological artifacts partly determines our self. This view has conceptual, methodological, and normative implications: we should broaden our concepts of the self as to include social and artifactual structures, focus on external memory systems in the (empirical) study of personal identity, and not interfere with people’s distributed minds and selves. (shrink)

In this paper, I attempt to map out the 'logical geography' of the territory in which issues of mental content and of personal identity meet. In particular, I investigate the possibility of combining a psychological criterion of personal identity with an externalist theory of content. I argue that this can be done, but only by accepting an assumption that has been widely accepted but barely argued for, namely that when someone switches linguistic communities, the contents (...) of their thoughts do not change immediately, but only after the person becomes integrated within the new linguistic community. I also suggest that recent work on personal identity, notably by Derek Parfit, has tacitly assumed internalism regarding mental content. I do not intend to argue for either externalism or a psychological criterion. My aim is merely to explicate the issues involved in making them compatible. (shrink)

The psychological continuity theory of personal identity has recently been accused of not meeting what is claimed to be a fundamental requirement on theories of identity - to explain personal moral responsibility. Although they often have much to say about responsibility, the charge is that they cannot say enough. I set out the background to the charge with a short discussion of Locke and the requirement to explain responsibility, then illustrate the accusation facing the (...) theory with details from Marya Schechtman. I aim some questions at the challengers’ reading of Locke, leading to an argument that the psychological continuity theory can say all that it needs to say about responsibility, and so is not in any grave predicament, at least not with regard to this particular charge. (shrink)

The special and unique attitudes that we take towards events in our futures/pasts—e.g., attitudes like the dread of an impeding pain—create a challenge for “Reductionist” accounts that reduce persons to aggregates of interconnected person stages: if the person stage currently dreading tomorrow’s pain is numerically distinct from the person stage that will actually suffer the pain, what reason could the current person stage have for thinking of that future pain as being his? One reason everyday subjects believe they have a (...) substantially extended temporal existence stems from introspection—they introspectively experience their selves as being temporally extended. In this paper, I examine whether a Reductionist about personal identity can co-opt this explanation. Using Galen Strawson’s recent work on self-experience as a resource, I reach both a negative and a positive conclusion about the prospects of such a position. First, the relevant kind of self-experience—i.e., the introspective experience of one’s self as being a substantially temporally extended entity—will not automatically arise within a person stage simply in virtue of that stage being psychologically connected to/continuous with other person stages. Second, the relevant kind of self-experience will arise, however, in virtue of person stages weaving together their respective experiences, actions, etc. via a narrative. This positive conclusion points towards a new Reductionist position that focuses upon a narrative, and not mere psychological continuity, in attempting to justify the special attitudes we take towards events in our futures/pasts. (shrink)

Williams (1970) argues that our intuitions about personal identity vary depending on how a given thought experiment is framed. Some frames lead us to think that persistence of self requires persistence of one's psychological characteristics; other frames lead us to think that the self persists even after the loss of one's distinctive psychological characteristics. The current paper takes an empirical approach to these issues. We find that framing does affect whether or not people judge that persistence (...) of psychological characteristics is required for persistence of self. Open-ended, abstract questions about what is required for survival tend to elicit responses that appeal to the importance of psychological characteristics. This emphasis on psychological characteristics is largely preserved even when participants are exposed to a concrete case that yields conflicting intuitions over whether memory must be preserved in order for a person to persist. Insofar as our philosophical theory of personal identity should be based on our intuitions, the results provide some support for the view that psychological characteristics really are critical for persistence of self. (shrink)

In the psychological sciences, mindfulness practices are increasingly being used, studied, and theorized, but their indigenous theoretical foundations in Buddhist accounts of the dynamics and psychology of personal identity tend to be overlooked. This situation is mirrored in the discipline of philosophy: here, Buddhist views on personal identity are beginning to draw attention, but almost invariably in a way which entirely blanks out the role of mindfulness practices in cultivating Buddhist insights on selfhood. The aggregate (...) result is a failure, in the West, to reflect upon and seriously consider Buddhist theory and Buddhist practice in an integrated, holistic fashion. In its effort to overcome the compartmentalization of Buddhist theory (in philosophy) versus Buddhist practice (in psychology) and to embrace the challenges this might pose to fundamental Western beliefs about the self, this paper is intended both as a plea for and an exercise in greater, more venturesome cosmopolitanism. (shrink)

Legal theorists have proposed several theories to justify statutes of limitations in the criminal law, but none of these normative theories is generally accepted. This chapter investigates the related descriptive question as to whether ordinary people have the intuition that legal punishment becomes less appropriate as time passes from the date of the offense and, if they do, what factors play a role in these intuitions. Five studies demonstrate that there is an intuitive statute of limitations on both (...) legal punishment and moral criticism, and that these intuitions arise, in part, from judgments about changes in psychological connectedness over time. (shrink)