What does it mean to say that this person at this time is 'the same' as that person at an earlier time? If the brain is damaged or the memory lost, how far does a person's identity continue? In this book two eminent philosophers develop very different approaches to the problem.

Most philosophers writing about personal identity in recent years claim that what it takes for us to persist through time is a matter of psychology. In this groundbreaking new book, Eric Olson argues that such approaches face daunting problems, and he defends in their place a radically non-psychological account of personal identity. He defines human beings as biological organisms, and claims that no psychological relation is either sufficient or necessary for an organism to persist. Olson rejects several famous thought-experiments dealing (...) with personal identity. He argues, instead, that one could survive the destruction of all of one's psychological contents and capabilities as long as the human organism remains alive--as long as its vital functions, such as breathing, circulation, and metabolism, continue. (shrink)

Challenging, with several powerful arguments, some of our deepest beliefs about rationality, morality, and personal identity, Parfit claims that we have a false view about our own nature. It is often rational to act against our own best interersts, he argues, and most of us have moral views that are self-defeating. We often act wrongly, although we know there will be no one with serious grounds for complaint, and when we consider future generations it is very hard to avoid conclusions (...) that most of us will find very disturbing. (shrink)

The topic of personal identity has prompted some of the liveliest and most interesting debates in recent philosophy. In a fascinating new contribution to the discussion, Peter Unger presents a psychologically aimed, but physically based, account of our identity over time. While supporting the account, he explains why many influential contemporary philosophers have underrated the importance of physical continuity to our survival, casting a new light on the work of Lewis, Nagel, Nozick, Parfit, Perry, Shoemaker, and others. Deriving from his (...) discussion of our identity itself, Unger produces a novel but commonsensical theory of the relations between identity and some of our deepest concerns. In a conservative but flexible spirit, he explores the implications of his theory for questions of value and of the good life. (shrink)

Contents PART I: INTRODUCTION 1 John Perry: The Problem of Personal Identity, 3 PART II: VERSIONS OF THE MEMORY THEORY 2 John Locke: Of Identity and ...

Introduction -- A default position -- Experience -- The character of experience -- Understanding-experience -- A note about dispositional mental states -- Purely experiential content -- An account of four seconds of thought -- Questions -- The mental and the nonmental -- The mental and the publicly observable -- The mental and the behavioral -- Neobehaviorism and reductionism -- Naturalism in the philosophy of mind -- Conclusion: The three questions -- Agnostic materialism, part 1 -- Monism -- The linguistic argument (...) -- Materialism and monism -- A comment on reduction -- The impossibility of an objective phenomenology -- Asymmetry and reduction -- Equal-status monism -- Panpsychism -- The inescapability of metaphysics -- Agnostic materialism, part 2 -- Ignorance -- Sensory spaces -- Experience, explanation, and theoretical integration -- The hard part of the mind-body problem -- Neutral monism and agnostic monism -- A comment on eliminativism, instrumentalism, and so on -- Mentalism, idealism, and immaterialism -- Mentalism -- Strict or pure process idealism -- Active-principle idealism -- Stuff idealism -- Immaterialism -- The positions restated -- The dualist options -- Frege's thesis -- Objections to pure process idealism -- The problem of mental dispositions -- Mental -- Shared abilities -- The sorting ability -- The definition of mental being -- Mental phenomena -- The view that all mental phenomena are experiential phenomena -- Natural intentionality -- E/c intentionality -- The experienceless -- Intentionality and abstract and nonexistent objects -- Experience, purely experiential content, and n/c intentionality -- Concepts in nature -- Intentionality and experience -- Summary with problem -- Pain and pain -- The neo-behaviorist view -- A linguistic argument for the necessary connection between pain and behavior -- A challenge -- The Sirians -- N.N. Novel -- An objection to the Sirians -- The Betelgeuzians -- The point of the Sirians -- Functionalism, naturalism, and realism about pain -- Unpleasantness and qualitative character -- The weather watchers -- The rooting story -- What is it like to be a weather watcher? -- The aptitudes of mental states -- The argument from the conditions for possessing the concept of space -- The argument from the conditions for language ability -- The argument from the nature of desire -- Desire and affect -- The argument from the phenomenology of desire -- Behavior -- A hopeless definition -- Difficulties -- Other-observability -- Neo-behaviorism -- The concept of mind. (shrink)

" -- "New Scientist" Intended for anyone attempting to find their way through the large and confusingly interwoven philosophical literature on consciousness, ..

HOST is the theory that to be conscious of a mental state is totarget it with a higher-order state (a `HOS'), either an innerperception or a higher-order thought. Some champions of HOSTmaintain that the phenomenological character of a sensory stateis induced in it by representing it with a HOS. I argue that thisthesis is vulnerable to overwhelming objections that flow largelyfrom HOST itself. In the process I answer two questions: `What isa plausible sufficient condition for a quale's belonging to aparticular (...) mental state?' and `What is the propositional contentof HOSs that target sensory states?'. (shrink)

Do fetuses have a right to life in virtue of the fact that they are potential adult human beings? I take the claim that the fetus is a potential adult human being to come to this: if the fetus grows normally there will be an adult human animal that was once the fetus. Does this fact ground a claim to our care and protection? A great deal hangs on the answer to this question. The actual mental and physical capacities of (...) a human fetus are inferior to those of adult creatures generally thought to lack a serious right to life, and the mere fact that a fetus belongs to our species in particular seems morally irrelevant. Consequently, a strong fetal claim to protection rises or falls with the appeal to the fetus's potentiality, for nothing else can justify it. (shrink)