What happens to a person in a case of fission? Does it survive? Does it go out of existence? Or is the outcome indeterminate? Since each description of fission based on the persistence conditions associated with our ordinary concept of a person seems to clash with one or more platitudes of common sense about the spatiotemporal profile of macroscopic objects, fission threatens the common-sense conception of persons with inconsistency. Standard responses to this paradox agree that the common-sense conception of persons (...) is unstable, differing over which part of the conception requires revision. I will show that this entrenched view of fission is not compulsory. I will develop a solution to the paradox that maintains the consistency of the common-sense conception of persons on the basis of an ontology of persons and other ordinary objects as double-layered compounds. Each of various descriptions of the outcome of personal fission is compatible with principles about the spatiotemporal profile of persons, because the descriptions and the principles manifest different perspectives on persons and are made true or false by different ontological components of the latter. What holds for the fission of persons, holds for the fission of other kinds of objects. (shrink)

The vast majority of philosophers of personal identity since John Locke have been convinced that the persistence of persons is not grounded in bodily continuity. Why? As numerous ‘textbooks’ on personal identity attest, their conviction rests, to a large extent, on an objection to the bodily approach, which concerns episodic memory. The objection invites us to a thought experiment in which we meet a person who experientially remembers events from the past of a person with a different body. The nature (...) of such first-personal memory-links is viewed as strongly suggesting that the rememberer is identical with the remembered, and hence, given the possibility of such a case, as suggesting that a person can transgress its bodily limits. The memory objection is as influential as it gets in the metaphysics of personal identity. Textbooks often portray it as the starting point of the contemporary debate about personal identity. And it has been widely perceived as a success. As everyone who has taught an introductory course on personal identity knows, the recognition of episodic-memory links in body-switching cases has the power to turn any group of novice students against bodily criteria of personal identity. In this essay, I shall specify and undermine the memory objection. I shall attempt to establish two theses. The first thesis is that the memory objection is only viable if construed as resting on the view that episodic memory contains a sense of personal identity, which teaches us about the reality of personal identity. The second thesis is that there is no such sense of personal identity, that episodic memory teaches us nothing at all about personal identity. (shrink)

Andrew Torrance has recently argued that we can distinguish analytic theology from analytic philosophy of religion if we understand theology as, fundamentally, a scientific enterprise. However, this distinction holds only if philosophy of religion is not itself a science in the sense intended by Torrance. I argue that philosophy of religion is a science in this sense, and so, that Torrance cannot distinguish theology from philosophy of religion in the way suggested. Nevertheless, I offer two alternative routes to the distinction (...) based on the nature of the respective objects of study in theology and philosophy of religion. Thus, I demonstrate that there is a coherent model available to Torrance which preserves the distinction he seeks. (shrink)

: A key consideration in favour of animalism—the thesis that persons like you and me are identical to the animals we walk around with—is that it avoids a too many thinkers problem that arises for non-animalist positions. The problem is that it seems that any person-constituting animal would itself be able to think, but if wherever there is a thinking person there is a thinking animal distinct from it then there are at least two thinkers wherever there is a thinking (...) person. Most find this result unacceptable, and some think it provides an excellent reason for accepting animalism. It has been argued, however, that animalists face an analogous problem of too many thinkers, the so-called corpse problem, as they must accept both 1) that we are distinct from our bodies, as our bodies can and we cannot persist through death as corpses and 2) that our bodies can think. I argue that the best reasons animalists have for accepting the two claims that generate the distinctness part of the problem double up as reasons to reject the claim that our bodies can think, and vice versa. I argue further that Lockeans cannot similarly get around their problem of too many thinkers. (shrink)

Perdurantists hold that we persons—just like other ordinary objects—persist by perduring, by having temporal parts, or stages, located over time. Perdurantists also standardly endorse the B-theory of time. And, in light of this endorsement, they typically characterize our tensed beliefs as self-ascriptions of properties, made not by us but by our stages. For instance, for me to believe that Angela Merkel is currently the chancellor of Germany is for my now-located stage to self-ascribe the property of being simultaneous with Merkel’s (...) chancellorship. The problem with this way of understanding tensed belief is that it undermines—if not outright contradicts—the perdurantist’s best options for resisting the Too Many Thinkers objection. In what follows, I show why this is. I then consider what I take to be the perdurantist’s most promising alternative account of tensed belief. I argue that this alternative either leaves perdurantists no better off with respect to the Too Many Thinkers objection or, instead, leaves them vulnerable to another objection, one that they would otherwise have no problem resisting. (shrink)

It seems plausible that (i) how much punishment a person deserves cannot be affected by the mere existence or nonexistence of another person. We might have also thought that (ii) how much punishment is deserved cannot increase merely in virtue of personal division. I argue that (i) and (ii) are inconsistent with the popular belief that, other things being equal, when people culpably do very wrong or bad acts, they ought to be punished for this—even if they have repented, are (...) now virtuous, and punishing them would benefit no one. Insofar as we cannot deny (i), we are either forced to abandon the popular belief in desert, or else allow that personal division could, as I put it, “multiply desert.” Some may not find the latter, considered by itself, troubling. But I argue that the thesis that division multiplies desert faces a potentially serious problem, which arises in the context of personal fusion. It is difficult to see how to maintain a particular family of desert views in light of the cases here presented. (shrink)

There is evidence to suggest that some patients who undergo Deep Brain Stimulation can experience changes to dispositional, emotional and behavioural states that play a central role in conceptions of personality, identity, autonomy, authenticity, agency and/or self. For example, some patients undergoing DBS for Parkinson’s Disease have developed hypersexuality, and some have reported increased apathy. Moreover, experimental psychiatric applications of DBS may intentionally seek to elicit changes to the patient’s dispositional, emotional and behavioural states, in so far as dysfunctions in (...) these states may undergird the targeted disorder. Such changes following DBS have been of considerable interest to ethicists, but there is a considerable degree of conflict amongst different parties to this debate about whether DBS really does change PIAAAS, and whether this matters. This paper explores these conflicting views and suggests that we may be able to mediate this conflict by attending more closely to what parties to the debate mean when they invoke the concepts lumped together under the acronym PIAAAS. Drawing on empirical work on patient attitudes, this paper outlines how these different understandings of the concepts incorporated into PIAAAS have been understood in this debate, and how they may relate to other fundamental concepts in medical ethics such as well-being and autonomy. The paper clarifies some key areas of disagreement in this context, and develops proposals for how ethicists might fruitfully contribute to future empirical assessments of apparent changes to PIAAAS following DBS treatment. (shrink)

Bering's argument that human beings are endowed with a cognitive system dedicated to forming illusory representations of psychological immortality relies on the claim that children's beliefs in the afterlife are not the result of religious teaching. We suggest four reasons why this claim is unsatisfactory.

Derek Parfit’s thesis that identity doesn’t matter in survival has been extensively discussed except for its metaphysical robustness. How can we justify the abandonment of identity in the way Parfit suggests? My argument is the following. Those who want to endorse the thesis that identity doesn’t matter (and, therefore, abandon identity across time) should adopt exdurantism, i.e. a metaphysics according to which the world is composed by temporal parts each existing at a time and according to which there is nothing (...) as a numerically same entity which exists at different times. I show that the metaphysics behind Parfit’s theory is neither compatible with endurantism, according to which object persists by being wholly present at different times, nor with perdurantism, according to which entities are aggregates of temporal and spatial parts. (shrink)

This paper considers how to put together two popular ideas in the philosophy of time: detenserism and perdurantism (the view that objects persist through time by having temporal parts. On the most obvious way of doing this, certain problems arise. I argue that to deal with these problems we need a tool that is unfamiliar to most detensers and perdurantists - the distinction between sortal and non-sortal predicates.

Most nonhuman animals live on the terms imposed on them by human beings. This condition of being under the mastery of another, or domination, is what republicanism identifies as political unfreedom. Yet there are several problems that must be solved in order to successfully extend republicanism to animals. Here I focus on the question of whether freedom can be a benefit for individuals without a free will. I argue that once we understand the grounds that make freedom a desirable property (...) of choices, we can see how it is appropriate to predicate it of those made by any sentient agent. (shrink)

Wild animals probably have net negative lives. Christine Korsgaard rejects the view that we might engineer paradise by redesigning nature and animals so that they have the best possible existences. She believes the genetic changes required would not be identity-preserving, thereby causing animals to cease to exist. I argue, first, that paradise engineering is permissible. Many harms are caused by non-sentient natural entities and processes. Moreover, sentient animals can survive modifications compatible with their psychological persistence over time. Second, we are (...) required to re-engineer nature in order to satisfy animals' right to the resources necessary for a reasonable life. (shrink)

According to philosophers who ground your anticipation of future experiences in psychological continuity and connectedness, it is rational to anticipate the experiences of someone other than yourself, such as a self that is the product of fission or of replication. In this article, I concur that it is rational to anticipate the experiences of the product of fission while denying the rationality of anticipating the experiences of a replica. In defending my position, I offer the following explanation of why you (...) have good reason to anticipate the experiences of your post-fission successor but not your replica: in the former case, you become somebody else, whereas, in the latter case, you are merely replaced by somebody else. (shrink)

The biophilosophic justification for the idea that “brain death” is death needs to support two claims: that what dies in human death is a human organism, not merely a psychological entity distinct from it; that total brain failure signifies the end of the human organism as a whole. Defenders of brain death typically assume without argument that the first claim is true and argue for the second by defending the “integrative unity” rationale. Yet the integrative unity rationale has fallen on (...) hard times. In this article, I give reasons for why we should think of ourselves as organisms, and why the “fundamental work” rationale put forward by the 2008 President’s Council is better than the integrative unity rationale, despite persistent objections to it. (shrink)

Many philosophers say that two or more people or thinking beings could share a single human being in a split‐personality case, if only the personalities were sufficiently independent and individually well integrated. I argue that this view is incompatible with our being material things, and conclude that there could never be two or more people in a split‐personality case. This refutes the view, almost universally held, that facts about mental unity and disunity determine how many people there are. I suggest (...) that the number of human people is simply the number of appropriately endowed human animals. (shrink)

ABSTRACTMany philosophers say that the nature of personal identity has to do with narratives: the stories we tell about ourselves. While different narrativists address different questions of personal identity, some propose narrativist accounts of personal identity over time. The paper argues that such accounts have troubling consequences about the beginning and end of our lives, lead to inconsistencies, and involve backwards causation. The problems can be solved, but only by modifying the accounts in ways that deprive them of their appeal.

The apparent fact that each of us coincides with a thinking animal looks like a strong argument for our being animals (animalism). Some critics, however, claim that this sort of reasoning actually undermines animalism. According to them, the apparent fact that each human animal coincides with a thinking body that is not an animal is an equally strong argument for our not being animals. I argue that the critics' case fails for reasons that do not affect the case for animalism.

In his book, Eric Olson (2007) makes some criticisms of a response to the problem of the thinking animal (also called the ‘too many minds’ or ‘too many thinkers’ problem) which I have offered, on behalf of the neo-Lockean psychological continuity theorist. Olson calls my proposal ‘personal pronoun revisionism’ (though I am not suggesting any revision). In what follows I shall say what my proposal actually is, defend it and briefly respond to Olson's criticism.

Jacob Ross argues that the fission cases discussed in the personal identity literature cannot be accommodated without rejecting basic intuitions of everyday ethical thinking. He notes that many philosophers have responded to the challenge of fission ‘by rejecting the metaphysical assumptions on which it rests’. In particular, that many have denied that in fission one ceases to exist. He contends that these denials do not meet the challenge to commonsense ethical thinking. I reject these claims. One of the metaphysical views (...) he considers is the multiple occupancy view of Lewis and Robinson, according to which in fission there are all along two numerically distinct, initially collocated, persons. I claim that Ross has not shown that this view has counterintuitive ethical implications. (shrink)

According to one argument for Animalism about personal identity, animal , but not person , is a Wigginsian substance concept—a concept that tells us what we are essentially. Person supposedly fails to be a substance concept because it is a functional concept that answers the question “what do we do?” without telling us what we are. Since person is not a substance concept, it cannot provide the criteria for our coming into or going out of existence; animal , on the (...) other hand, can provide such criteria. This argument has been defended by Eric Olson, among others. I argue that this line of reasoning fails to show Animalism to be superior to the Psychological Approach, for the following two reasons: (1) human animal , animal , and organism are all functional concepts, and (2) the distinction between what something is and what it does is illegitimate on the reading that the argument needs. (shrink)

I aim to show that, contrary to standard deflationary or eliminativist theories of the self, we can argue from the phenomenology of pre-reflective self-awareness for the thesis that subjects of experience are substances. The phenomenological datum of subjectivity points to a specific metaphysical structure of our experience, that is, towards the substance view rather than the bundle or the minimal self view. Drawing on modern philosophical accounts of pre-reflective self-awareness, mineness and (self-) acquaintance, I will argue that a subject is (...) aware of being the one individual who has many experiences and that it is revealed to the subject that it is the bearer of experiences and their unifier. The subject is present in pre-reflective awareness and known as the subject of experiences, and even this minimal self-awareness gives us reason to favour the substance view. Thus, one can demonstrate how the debates on the phenomenology of pre-reflective self-awareness and the metaphysics of selfhood intersect. (shrink)

Oppression can be unjust from a luck egalitarian point of view even when it is the consequence of choices for which it is reasonable to hold persons responsible. This is for two reasons. First, people who have not been oppressed are unlikely to anticipate the ways in which their choices may lead them into oppressive conditions. Facts about systematic phenomena (like oppression) are often beyond the epistemic reach of persons who are not currently subject to such conditions, even when they (...) possess adequate information about the particular consequences of their choices. Second, people may be (much) less responsible for remaining in oppressive conditions, even if they are responsible for entering circumstances of oppression. Oppression that results from a person’s choice may cause or contribute to dramatic changes in that person, and these changes may be sufficient to undermine the person’s responsibility for the results of her earlier choice. (shrink)

The “disability paradox” is the idea that for those who become severely disabled, their own quality of life assessment remains at or slightly below the QoL assessments of normal controls. This is a source of skepticism regarding third-person QoL judgments of the disabled. I argue here that this skepticism applies as well to those who are in the minimally conscious state. For rather simple means of sustaining an MCS patient’s life, the cost of being wrong that the patient would not (...) want further support is high. Pair this cost with the reason to be skeptical of third-person judgments, and my argument suggests not withholding food and water from MCS patients. (shrink)

We have a strong intuition that personal identity is a determinate relationship. Parfit famously challenged this intuition. In this paper I explain how narrative identity theories can face that challenge and defend that personal identity is determinate thanks to what I call the social narrativity thesis. This move will raise some concerns regarding the also strong intuition that personal identity is what matters when we care about our future existence. I address this concern to show that narrative identity theories can (...) account for both intuitions at the same time. (shrink)

Ontology is the philosophical discipline which aims to understand how things in the world are divided into categories and how these categories are related together. This is exactly what information scientists aim for in creating structured, automated representations, called 'ontologies,' for managing information in fields such as science, government, industry, and healthcare. Currently, these systems are designed in a variety of different ways, so they cannot share data with one another. They are often idiosyncratically structured, accessible only to those who (...) created them, and unable to serve as inputs for automated reasoning. This volume shows, in a nontechnical way and using examples from medicine and biology, how the rigorous application of theories and insights from philosophical ontology can improve the ontologies upon which information management depends. (shrink)

In this article, I explore difficult and sensitive questions regarding the nature of transgender identity claims and the appropriate medical treatment for those suffering from gender dysphoria. I first analyze conceptions of transgender identity, highlighting the prominence of the wrong-body narrative and its dualist presuppositions. I then briefly argue that dualism is false because our bodily identity is essential and intrinsic to our overall personal identity and explain why a sound, nondualist anthropology implies that gender identity cannot be entirely divorced (...) from sexual identity. Finally, I make the case that arguments in favor of hormonal and surgical treatments for gender dysphoria rest on this mistaken dualist anthropology, and that these treatments therefore give false hope to those suffering from gender dysphoria, while causing irreversible bodily harm and diverting attention from underlying psychological problems that often need to be addressed. I also briefly discuss how these philosophical claims relate to empirical studies on the outcomes of hormonal and surgical treatments for gender dysphoria and to testimonies of transgender individuals who regret having undergone these treatments. (shrink)

The dominant philosophical view of gamete donation as morally permissible rests on two premises: parental obligations are triggered primarily by playing a causal role in procreation, not by genetic ties, and those obligations are transferable—that is, they are obligations to make adequate provision for the child’s needs, not necessarily to raise the child oneself. Thus while gamete donors are indeed agent causes of the children that their donation helps to bring into existence, most think that donors’ obligations are discharged insofar (...) as they know that competent others intend to care for those children. In this article, I call into question this dominant view by challenging both of its premises. Challenging the first premise, I argue that genetic parenthood is what primarily triggers parental obligations. Challenging the second premise, I claim that those obligations are non-transferable—i.e., that they are obligations not simply to ensure that someone will raise one’s genetic child, but to raise that child oneself . The implication of my argument is that gamete donation is inherently wrong insofar as it involves acquiring non-transferable obligations that one has no intention of fulfilling. (shrink)

The Problem of Biological Individuality is the problem of how to count organisms. Whilst counting organisms may seem easy, the biological world is full of difficult cases such as colonial siphonophores and aspen tree groves. One of the main solutions to the Problem of Biological Individuality is the Physiological Approach. Drawing on an argument made by Eric Olson in the personal identity debate, I argue that the Physiological Approach faces a metaphysical problem - the ‘Foetus Problem’. This paper illustrates how (...) metaphysics can contribute to debates about organisms in the philosophy of biology. (shrink)

In this paper, I argue that attempts in the philosophy of biology to show that organisms are processes rather than substances fail. Despite what process ontologists have said, I argue that substance ontology is perfectly able to accommodate the dynamic nature of organisms, their ecological dependence, and their vague boundaries, and that their criticisms are not directed at substance ontology simpliciter, but only at specific (perhaps untenable) characterisations of substances. The paper ends by considering what a processual philosophy of biology (...) that is radically in conflict with an ontology of substances might look like. (shrink)

One of the standard puzzles in ordinary-object metaphysics concerns what happens when an object and one of its undetached parts apparently begin to coincide. I distinguish two versions of this puzzle: the problem of extraordinary undetached parts and the problem of ordinary undetached parts. Then I present a novel phasalist solution to the problem of ordinary undetached parts. My solution is designed to supplement the recently-defended view that ordinary undetached parts exist but extraordinary ones do not.

ABSTRACT One simple but relatively neglected solution to the notorious coincidence puzzle of the statue and the piece of clay claims that the property of being a statue is a phase sortal property that the piece of clay instantiates temporarily. I defend this view against some standard objections, by reinforcing it with a novel counterpart-theoretic account of identity under a sortal. This proposal does not require colocation, four-dimensionalism, eliminativism, deflationism, or unorthodox theses about classical identity.

According to the Psychological Account of personal identity, personal identity across time is maintained by some form of psychological overlap or continuance. I show that the Psychological Account has trouble accommodating cases of transient retrograde amnesia. In such cases, the transitivity of psychological continuity may break down. I consider various means of responding to this problem, arguing that the best available response will undercut our ability to rely on intuitions about brain transplantation to support the Psychological Account. When the Psychological (...) Account is re-interpreted in such a way as to overcome the problems posed by cases of transient retrograde amnesia, it turns out that standard brain transplantation cases involve details which are strictly irrelevant according to the theory. On the other hand, these features seem to drive our intuitions about survival in these cases. In this way, my argument undermines one of the key motivations for adopting the Psychological Account. (shrink)

Multiple selves is a conventional assumption in behavioural welfare economics for modelling intrapersonal well-being. Yet an important question is which self has normative authority over others. In this paper, we advance an argument for what we call the ‘ontological approach’ to personal identity in behavioural welfare economics. According to this approach, ethical questions – such as which preference should be granted normative authority over another – can be informed by the ontological criterion of personal persistence, which aims at determining what (...) it takes for an individual to persist from one time to another. (shrink)

The view to be defended in this paper is intended to be a novel and compelling model of instrumental practical reasoning, reasoning aimed at determining how to act in order to achieve a given end in a certain set of circumstances. On standard views of instrumental reasoning, the end in question is the object of a particular desire that the agent has, a desire which, when combined with the agent’s beliefs about what means are available to him or her in (...) order to satisfy that desire, can cause the formation of an independent desire or intention to engage in the relevant means. One of the main goals in what follows is to show that such views provide an inadequate understanding of instrumental practical reasoning when it comes to the practical lives of agents. We shall proceed as follows. After some background assumptions are outlined in the next section, two important and largely neglected challenges will be raised to any view of instrumental practical reasoning (hereafter IP reasoning) which only countenances the role of end-directed desires and means-end beliefs in the mental economy of agents. In my view, neither of these challenges can be met, or at least not in any straightforward way. Hence the remainder of the paper is devoted to articulating and defending a new approach to understanding the structure of instrumental practical reasoning. The heart of this positive view will involve the addition of a normative belief concerning the desirability of the agent’s end. (shrink)

This paper defends a version of strong conventionalism minus the ontological commitments of that view. It defends the claim that strictly speaking there are no persons, whilst explicating how to make sense of talk that is about (or purportedly about) persons, by appealing to features in common to conventionalist accounts of personal identity. This view has the many benefits of conventionalist accounts in being flexible enough to deal with problem cases, whilst also avoiding the various worries associated with the existence (...) of both persons and human animals occupying the same place at the same time to which conventionalist accounts are committed. (shrink)

A number of philosophers have become convinced that the best way of trying to understand human agency is by arriving at an account of identification. My goal here is not to criticize particular views about identification, but rather to examine several assumptions which have been widely held in the literature and yet which, in my view, render implausible any account of identification that takes them on board. In particular, I argue that typically identification does not involve either reflective consideration of (...) our mental states or endorsement of those states. If it did, we would rarely be agents. (shrink)

In this paper, I address one recent objection to Andy Clark and David Chalmers’s functionalist argument for the extended mind thesis. This objection is posed by Kengo Miyazono, who claims that they unjustifiably identify the original cognitive subject with the hybrid one in order to reach their conclusion about the mind extension. His attack consists of three steps: distinguishing hybrid from traditional cognitive subjects based on the systems reply originally directed at Searle’s Chinese room argument; pointing out that the conclusion (...) of the functionalist argument for EM must be rephrased to state that there are hybrid, and not extended, systems with widely realized mental states; and arguing that functionalist EM cannot justify the assumption about the identity of these two kinds of subjects without circularity. I argue that Miyazono’s main argument is ill-founded but that it, nevertheless, points out one important issue, namely, that we need further justification of the identity assumption, without which EM loses much of its flavor. Thus, I am going to challenge Miyazono’s argument, provide a reinterpretation of the argumentation in the EM debate, defend the possibility of wide and extended selves, and offer a justification of the identity assumption, which I find crucial not only for vindicating EM but also for differentiating EM from other similar theses, such as the thesis about group minds. (shrink)

We are beings endowed with “personal capacities”—the capacity for reason, for a concept of self, perhaps more. Among ontologically salient views about what else we are, I focus on the “Big Three.” According to animalism, we are animals that have psychological properties only contingently. According to psychologistic materialism, we are material beings; according to substance dualism, we are either immaterial beings or composites of immaterial and material ones; but according to both psychologistic materialism and substance dualism, we essentially have some (...) psychological properties. I argue that—contrary to what has been argued and is natural to think—none of the Big Three yields different assignments of moral status to early fetuses from any of the others, and consequently the moral status of early abortion doesn’t depend on which (if any) of these views of personal ontology is correct. (shrink)

This paper argues that if persons last over time by “enduring”, then no analysis or reduction of personal identity over time in tenus of any sort of psychological continuity can be correct. In other words, any analysis of personal identity over time in tenus of psychological continuity entails that persons are four-dimensional and have temporal parts. The paper then shows that if we abandon psychological analyses of personal identity---as we must if persons endure---Parfit’s argument for the claim that identity does (...) not matter in survival is easily undenuined. The paper then suggests that this offers support for the claim that persons endure. Along the way the paper tries to clarify the contrast between the doctrine that persons endure and its rival, four-dimensionalism. (shrink)

How many individuals are present where we see a pregnant individual? Within a substance ontological framework, there are exactly two possible answers to this question. The standard answer—two individuals—is typically championed by scholars endorsing the predominant Containment View of pregnancy, according to which the foetus resides in the gestating organism like in a container. The alternative answer—one individual—has recently found support in the Parthood View, according to which the foetus is a part of the gestating organism. Here I propose a (...) third answer: a pregnant individual is neither two individuals nor one individual but something in between one and two. This is because organisms are better understood as processes than as substances. With a special focus on the Parthood View, I explain why a Process View of pregnancy, according to which a pregnant individual is a bifurcating hypercomplex process, surpasses the substance ontological approaches. (shrink)

Good physical experiments conform to the basic methodological standards of experimental design: they are objective, reliable, and valid. But is this also true of thought experiments? Especially problems of personal identity have engendered hypothetical scenarios that are very distant from the actual world. These imagined situations have been conspicuously ineffective at resolving conflicting intuitions and deciding between the different accounts of personal identity. Using prominent examples from the literature, I argue that this is due to many of these thought experiments (...) not adhering to the methodological standards that guide experimental design in nearly all other disciplines. I also show how empirically unwarranted background assumptions about human physiology render some of the hypothetical scenarios that are employed in the debate about personal identity highly misleading. (shrink)

When an individual is comatose while parts of her brain remain functional, the question arises as to whether any mental characteristics are still associated with this brain, that is, whether the person still exists. Settling this uncertainty requires that one becomes clear about two issues: the type of functional loss that is associated with the respective profile of brain damage and the persistence conditions of persons. Medical case studies can answer the former question, but they are not concerned with the (...) latter. Conversely, in the philosophical literature, various accounts of personal identity are discussed, but usually detached from any empirical basis. Only uniting the two debates and interpreting the real-life configurations of brain damage through the lens of the philosophical concepts enables one to make an informed judgment regarding the persistence of comatose persons. Especially challenging are cases in which three mental characteristics that normally occur together—wakefulness, awareness and memory storage—come apart. These shall be the focus of this paper. (shrink)

In this paper, I propose and defend a structural ownership condition on moral responsibility. According to the condition I propose, an agent owns a mental item if and only if it is part of or is partly grounded by a coherent set of psychological states. As I discuss, other theorists have proposed or alluded to conditions like psychological coherence, but each proposal is unsatisfactory in some way. My account appeals to narrative explanation to elucidate the relevant sense of psychological coherence.

Opponents of human embryonic stem cell (hESC) research claim that such research is incompatible with the moral principle that it is always wrong intentionally to end a human life. In this essay, I discuss how that principle might be revised so that it is subject to as few difficulties as possible. I then argue that even the most defensible version of the principle is compatible with the moral permissibility of hESC research.

What sort of thing, fundamentally, are you and I? For convenience, I use the term persimal to refer to the kind of thing we are, whatever that kind turns out to be. Accordingly, the question is, what are persimals? One possible answer is that persimalhood consists in being a human animal, but many theorists, including Derek Parfit and Jeff McMahan, not to mention John Locke, reject this idea in favor of a radically different view, according to which persimalhood consists in (...) having certain sorts of mental or psychological features. In this essay, I try to show that the animalist approach is defensible as against the mentalist approach. I also suggest that animalists have a plausible story to tell about cases such as brain transplantation and dicephaly that might appear to support the mentalist approach. (shrink)

The Zhuangzi 莊子 depicts persons as surviving their deaths through the natural transformations of the world into very different forms—such as roosters, cart-wheels, rat livers, and so on. It is common to interpret these passages metaphorically. In this essay, however, I suggest employing a “Conventionalist” view of persons that says whether a person survives some event is not merely determined by the world, but is partly determined by our own attitudes. On this reading, Zhuangzi’s many teachings urging us to embrace (...) transformation are not merely a psychological aid for dealing with death, but also serve as a tool for literally surviving it. (shrink)