In his unpublished 1979 Lectures on the Philosophy of Mind, Saul Kripke offers a knowledge argument against materialism focusing on deaf people who lack knowledge of auditory experience. Kripke's argument is a precursor of Frank Jackson's better‐known knowledge argument against materialism (1982). The paper sets out Kripke's argument, brings out its interest and philosophical importance, and explores some similarities and differences between Kripke's knowledge argument and Jackson's.

endorsed one kind of inverted spectrum hypothesis and rejected another. This paper argues that the kind of inverted spectrum hypothesis that Wittgenstein endorsed is the thin end of the wedge that precludes a Wittgensteinian critique of the kind of inverted spectrum hypothesis he rejected. The danger of the dangerous kind is that it provides an argument for qualia, where qualia are contents of experiential states which cannot be fully captured in natural language. I will pinpoint the difference between the innocuous (...) and dangerous scenarios that matters for the argument for qualia, give arguments in favor of the coherence and possibility of the dangerous scenario, and try to show that some standard arguments against inverted spectra are ineffective against the version of the dangerous scenario I will be advocating. The leading idea of the paper is that an argument for qualia based on spectrum inversion does not require that the inversion be behaviorally indistinguishable. At one crucial point, I will rely on a less controversial version of an argument I gave in Block. Wittgenstein's views provide a convenient starting point for a paper that is much more about qualia than about Wittgenstein. (shrink)

Muchos psiquiatras se encuentran constantemente con pacientes cuyos síntomas incluyen trastornos o alteraciones de la conciencia. Infortunadamente, el significado del término conciencia es poco claro. Este artículo hace un repaso sistemático de varios significados atribuidos a dicho término, así como de diversos problemas filosóficos asociados. Asimismo, reconstruye varias teorías filosóficas y científicas de la conciencia, identificando sus ventajas y desventajas. Al final, ofrece algunas sugerencias para el uso del término conciencia en la psiquiatría.

Theories that combine physicalism with phenomenal concepts abandon the phenomenal irrealism characteristic of 1950s physicalism, thereby leaving physicalists trying to reconcile themselves to concepts appropriate only to dualism. Physicalists should instead abandon phenomenal concepts and try to develop our concepts of conscious states. Employing an account of concepts as structured mental representations, and motivating a model of conceptual development with semantic externalist considerations, I suggest that phenomenal concepts misrepresent their referents, such that if our conception of consciousness incorporates them, it (...) needs development. I then argue that the ?phenomenal concept strategy? (PCS) of a purely cognitive account of the distinction between phenomenal and physical concepts combines physicalism with phenomenal concepts only by misrepresenting physical properties. This is because phenomenal concepts carry ontological commitment, and I present an argument to show the tension between this commitment and granting ontological authority to physical concepts only. In the final section, I show why phenomenal concepts are more ontologically committed than PCS theorists can allow, revive U.T. Place's notion of a ?phenomenological fallacy? to explain their enduring appeal, and then suggest some advantages of functional analyses of concepts of conscious states over the phenomenal alternative. (shrink)

It's a common idea in philosophy that we possess a peculiar kind of "phenomenal concept" by which we can think about our conscious states in "inner" and "direct" ways, as for example, when I attend to the way a current pain feels and think about this feeling as such. Such phenomenal ways of thinking figure in a variety of theoretical contexts. The bulk of this article discusses their use in a certain strategy – the phenomenal concept strategy – for defending (...) the physicalist view that conscious states are reducible to brain states. It also considers, more briefly, how phenomenal concepts have been used to defend dualism about consciousness, and how they have been used to explain our special access to our consciousness. It concludes with a discussion about whether, and in what more precise sense of the term, we at all possess "phenomenal concepts" of our conscious states. (shrink)

Gilbert Harman (1990) seeks to defend psychophysical functionalism by articulating a representationalist view of the qualities of experience. The negative side of the present paper argues that the resources of this representationalist view are insufficient to ground the evident distinction between perception and (mere) thought. This failure makes the view unable to support the uses to which Harman wishes to put it. Several rescuing moves by other representationalists are considered, but none is found successful. Part of the difficulty in Harman's (...) (...) work is that he does not adequately specify the view he rejects. The positive aim of the present paper is to provide a robust intrinsic quality account of experience that offers advantages in comparison with Harman's view, and that plainly does not fall to any of the arguments he advances. (shrink)

Cet article présente, contre le physicalisme, un argument métaphysique fondé sur la distinction entre les propriétés intrinsèques et extrinsèques. Il soutient que le physique, comme le physicalisme doit le comprendre, comprend uniquement des propriétés extrinsèques, tandis que la conscience implique au moins certaines propriétés intrinsèques. Il conclut que la conscience a des propriétés non-physiques et que le physicalisme est faux. L’article défend ensuite ses prémisses contre la pensée physicaliste actuelle. Autant que possible, il offre des arguments métaphysiques portant sur les (...) propriétés physiques et conscientes plutôt que des arguments épistémologiques portant sur nos concepts physiques et phénoménaux. (shrink)

In this paper I discuss the claim that the successful reduction of qualitative to physical states requires some sort of intelligible connection between our qualitative and physical concepts, which in turn requires a conceptual analysis of our qualitative concepts in causal-functional terms. While I defend this claim against some of its recent critics, I ultimately dispute it, and propose a different way to get the requisite intelligible connection between qualitative and physical concepts.

In this paper I discuss the claim (advanced in various ways by Joseph Levine, Frank Jackson and David Chalmers) that the successful reduction of qualitative to physical states requires some sort of intelligible connection between our qualitative and physical concepts, which in turn requires a conceptual analysis of our qualitative concepts in causal‐functional terms. While I defend this claim against some of its recent critics, I ultimately dispute it, and propose a different way to get the requisite intelligible connection between (...) qualitative and physical concepts. (shrink)

David Chalmers' conceivability argument against physicalism relies on the entailment from a priori conceivability to metaphysical possibility. The a posteriori physicalist rejects this premise, but is consequently committed to psychophysical strong necessities. These don't fit into the Kripkean model of the necessary a posteriori, and they are therefore, according to Chalmers, problematic. But given semantic assumptions that are essential to the conceivability argument, there is reason to believe in microphysical strong necessities. This means that some of Chalmers' criticism is unwarranted, (...) and the rest equally afflicts the dualist. Moreover, given that these assumptions are independently plausible, there's a general case to be made for the existence of strong necessities outside the psychophysical domain. (shrink)

How should the metaphysical hypothesis of materialism be formulated? What strategies look promising for defending this hypothesis? How good are the prospects for its successful defense, especially in light of the infamous "hard problem" of phenomenal consciousness? I will say something about each of these questions.

A celebrated problem for representationalist theories of phenomenal character is that, given externalism about content, these theories lead to externalism about phenomenal character. While externalism about content is widely accepted, externalism about phenomenal character strikes many philosophers as wildly implausible. Even if internally identical individuals could have different thoughts, it is said, if one of them has a headache, or a tingly sensation, so must the other. In this paper, I argue that recent work on phenomenal concepts reveals that, contrary (...) to appearances, this standard conjunction of externalism about content and internalism about phenomenal character is ultimately untenable on other models of phenomenal character as well, including even “qualia realism.” This would be significant for a number of reasons. The first is patent: it would undermine a primary objection to representationalism. The fact that representationalism is incompatible with the conjunction would be no serious problem for representationalism if no other plausible model of phenomenal character is compatible with it. The second is that the many philosophers who embrace the conjunction would be forced to abandon one of the two views; externalism would be true either of both content and phenomenal character, or of neither. Likewise, those philosophers who have taken a stance on only one of the two internalism/externalism debates would have to be seen as thereby committed to a particular stance on the other. The third reason stems from the fact that qualia realism typically goes hand in hand with internalism about phenomenal character. To the extent that it does, my argument would reveal that qualia realism is itself in tension with externalism about content. This would perhaps be the most surprising result of all. (shrink)

RESUMEN Muchos psiquiatras se encuentran constantemente con pacientes cuyos síntomas incluyen trastornos o alteraciones de la conciencia. Infortunadamente, el significado del término conciencia es poco claro. Este artículo hace un repaso sistemático de varios significados atribuidos a dicho término, así como de diversos problemas filosóficos asociados. Asimismo, reconstruye varias teorías filosóficas y científicas de la conciencia, identificando sus ventajas y desventajas. Al final, ofrece algunas sugerencias para el uso del término conciencia en la psiquiatría. ABSTRACT Psychiatrists often encounter patients whose (...) symptoms include disorders or impairments of consciousness. Unfortunately, the meaning of the term consciousness is not altogether clear. This article presents a systematic review of various meanings attributed to this term, as well as of diverse associated philosophical problems. Likewise, it reconstructs some philosophical and scientific theories of consciousness, identifying their advantages and disadvantages. Finally, it offers some suggestions for the use of the term consciousness in psychiatry. (shrink)

Functionalism, a philosophical theory, has empirical consequences. Functionalism predicts that where systematic transformations of sensory input occur and are followed by behavioral accommodation in which normal function of the organism is restored such that the causes and effects of the subject's psychological states return to those of the period prior to the transformation, there will be a return of qualia or subjective experiences to those present prior to the transform. A transformation of this type that has long been of philosophical (...) interest is the possibility of an inverted spectrum. Hilary Putnam argues that the physical possibility of acquired spectrum inversion refutes functionalism. I argue, however, that in the absence of empirical results no a priori arguments against functionalism, such as Putnam's, can be cogent. I sketch an experimental situation which would produce acquired spectrum inversion. The mere existence of qualia inversion would constitute no refutation of functionalism; only its persistence after behavioral accommodation to the inversion would properly count against functionalism. The cumulative empirical evidence from experiments on image inversion suggests that the results of actual spectrum inversion would confirm rather than refute functionalism. (shrink)

This paper was chosen by The Philosopher’s Annual as one of the ten best articles appearing in print in 2000. Reprinted in Volume XXIII of The Philosopher’s Annual. In his very influential book David Chalmers argues that if physicalism is true then every positive truth is a priori entailed by the full physical description – this is called “the a priori entailment thesis – but ascriptions of phenomenal consciousness are not so entailed and he concludes that Physicalism is false. As (...) he puts it, “zombies” are metaphysically possible. I attempt to show that this argument is refuted by considering an analogous argument in the mouth of a zombie. The conclusion of this argument is false so one of the premises is false. I argue at length that this shows that the original conceivability argument also has a false premise and so is invalid. (shrink)

What is the mind? Is consciousness a process in the brain? How do our minds represent the world? Philosophy of Mind: Classical and Contemporary Readings is a grand tour of writings on these and other perplexing questions about the nature of the mind. The most comprehensive collection of its kind, the book includes sixty-three selections that range from the classical contributions of Descartes to the leading edge of contemporary debates. Extensive sections cover foundational issues, the nature of consciousness, and the (...) nature of mental content. Three of the selections are published here for the first time, while many other articles have been revised especially for this volume. Each section opens with an introduction by the editor. Philosophy of Mind is suitable for students at all levels and also for general readers. (shrink)

consciousness comes about as a result of irritating nervous tissue, is just as unaccountable as the appearance of Djin when Aladdin rubbed his lamp.

Functionalism in the philosophy of mind is the doctrine that what makes something a mental state of a particular type does not depend on its internal constitution, but rather on the way it functions, or the role it plays, in the system of which it is a part. This doctrine is rooted in Aristotle's conception of the soul, and has antecedents in Hobbes's conception of the mind as a “calculating machine”, but it has become fully articulated (and popularly endorsed) only (...) in the last third of the 20th century. Though the term ‘functionalism’ is used to designate a variety of positions in a variety of other disciplines, including psychology, sociology, economics, and architecture, this entry focuses exclusively on functionalism as a philosophical thesis about the nature of mental states. (shrink)

Qualia inversion thought experiments are ubiquitous in contemporary philosophy of mind. The most popular kind is one or another variant of Locke's hypothetical case of.

Pain is the most prominent member of a class of sensations known as bodily sensations, which includes itches, tickles, tingles, orgasms, and so on. Bodily sensations are typically attributed to bodily locations and appear to have features such as volume, intensity, duration, and so on, that are ordinarily attributed to physical objects or quantities. Yet these sensations are often thought to be logically private, subjective, self-intimating, and the source of incorrigible knowledge for those who have them. Hence there appear to (...) be reasons both for thinking that pains (along with other similar bodily sensations) are physical objects or conditions that we perceive in body parts, and for thinking that they are not. This apparent paradox is one of the main reasons why philosophers are especially interested in pain. One increasingly popular but still controversial way to deal with this apparent paradox is to defend a perceptual or representational view of pain, according to which feeling pain is in principle no different from undergoing other standard perceptual processes like seeing, hearing, touching, etc. But there are many who think that pains are not amenable to such a treatment. Although it was the treatment of pain as a sensory-discriminative experience that had dominated the philosophical discussions throughout most of the twentieth century, attention to pains’ affective-motivational dimension has gained prominence in recent years. (shrink)

Consciousness fits uneasily into our conception of the natural world. On the most common conception of nature, the natural world is the physical world. But on the most common conception of consciousness, it is not easy to see how it could be part of the physical world. So it seems that to find a place for consciousness within the natural order, we must either revise our conception of consciousness, or revise our conception of nature. In twentieth-century philosophy, this dilemma is (...) posed most acutely in C. D. Broad’s The Mind and its Place in Nature . The phenomena of mind, for Broad, are the phenomena of consciousness. The central problem is that of locating mind with respect to the physical world. Broad’s exhaustive discussion of the problem culminates in a taxonomy of seventeen different views of the mental-physical relation.1 On Broad’s taxonomy, a view might see the mental as nonexistent , as reducible, as emergent, or as a basic property of a substance . The physical might be seen in one of the same four ways. So a four-by-four matrix of views results. At the end, three views are left standing: those on which mentality is an emergent characteristic of either a physical substance or a neutral substance, where in the latter case, the physical might be either emergent or delusive. (shrink)

Confronted with the apparent explanatory gap between physical processes and consciousness, there are many possible reactions. Some deny that any explanatory gap exists at all. Some hold that there is an explanatory gap for now, but that it will eventually be closed. Some hold that the explanatory gap corresponds to an ontological gap in nature.

From the time of Descartes to about the 1960s, a certain epistemological idea dominated the philosophy of mind, namely the idea that theses about the relation between mind and body are, if true, a priori truths. Much of recent philosophy of mind is devoted to the question whether that idea is right. My research is largely an attempt to argue that some recent defenses of it are unsuccessful. ;For example, Physicalism is the metaphysical thesis that every actual psychological event, property, (...) or process is necessitated by some actual physical event, property, or process. Many philosophers believe that Physicalism is true. Until about the 1960s, those who believed it true typically believed that statements relating mind and body were a priori truths. Let us call this thesis A Priori Physicalism. Many philosophers nowadays believe, instead, that statements relating mind and body are only a posteriori truths. Let us call this thesis A Posteriori Physicalism. A number of philosophers have argued in recent years that A Posteriori Physicalism is unacceptable; on their view, Physicalists had better be A Priori Physicalists. My thesis examines the question whether that view is correct. ;I begin with a discussion of two influential arguments for the conclusion that Physicalists must be A Priori Physicalists. Chapter 1 addresses itself to an argument for the conclusion that if physicalism is true, every referring psychological expression is coreferential a priori with some referring physical expression. This argument is commonly called the Property Dualism Argument against Physicalism. I argue that the Property Dualism Argument rests on an ambiguous premise: on one reading it begs the question against A Posteriori Physicalism, on the other reading the conclusion of the Property Dualism Argument does not follow. ;Chapter 2 addresses itself to an argument of Frank Jackson's for the conclusion that Physicalists must have an a priori story to tell about how the physical nature of the actual world makes true the psychological nature of the actual world. I distinguish two ways in which this claim might be understood, and I argue that on neither way of understanding it does Jackson have a compelling argument for A Priori Physicalism. ;Finally, in Chapter 3 I turn to a more general discussion of the relation between conceivability and possibility, and its bearing on the dispute between A Priori and A Posteriori Physicalists. I focus in particular on a recent argument of David Chalmers' from the conceivability of so-called zombies to the conclusion that A Posteriori Physicalism is false. I argue that this argument fails to provide compelling reasons for rejecting A Posteriori Physicalism. I argue, first, that it misconstrues the relation between conceivability and possibility, and second, that it fails to establish that zombies are conceivable in the relevant sense. (shrink)

This is a bibliography of books and articles on consciousness in philosophy, cognitive science, and neuroscience over the last 30 years. There are three main sections, devoted to monographs, edited collections of papers, and articles. The first two of these sections are each divided into three subsections containing books in each of the main areas of research. The third section is divided into 12 subsections, with 10 subject headings for philosophical articles along with two additional subsections for articles in cognitive (...) science and neuroscience. Of course the division is somewhat arbitrary, but I hope that it makes the bibliography easier to use. This bibliography has first been compiled by Thomas Metzinger and David Chalmers to appear in print in two philosophical anthologies on conscious experience . From 1995 onwards it has been continuously updated by Thomas Metzinger, and now is freely available as a PDF-, RTF-, or HTML-file. This bibliography mainly attempts to cover the Anglo-Saxon and German debates, in a non-annotated, fully formatted way that makes it easy to "cut and paste" from the original file. To a certain degree this bibliography also contains items in other languages than English and German - all submissions in other languages are welcome. Last update of current version: July 13th, 2001. (shrink)

In this paper I argue that certain so-called conceivability arguments fail to show that a currently popular version of physicalism in the philosophy of mind is false. Concentrating on an argument due to David Chalmers, I first argue that Chalmers misrepresents the relation between conceivability and possibility. I then argue that the intuition behind the conceivability of so-called zombie worlds can be accounted for without having to suppose that such worlds are genuinely conceivable. I conclude with some general remarks about (...) the nature of conceivability. (shrink)

En este artículo exploro el compatibilismo, el punto de vista según el cual la tesis del hiato o hueco explicativo entre lo fenoménico y lo físico es compatible con una metafísica fisicista. Defiendo que el argumento del dualismo de propiedades es un argumento incompatibilista más fuerte que el argumento de Jackson-Chalmers o el de Kripke y exploro críticamente algunos intentos recientes de replicar al mismo. La conclusión a la que llego es que una posición compatibilista capaz de dar una respuesta (...) adecuada al argumento del dualismo de propiedades sigue todavía pendiente de articulación. In this paper I explore compatibilism, the view that the claim that there is an explanatory gap between the phenomenal and the physical is compatible with an overall physicalist metaphysics. I argue that the property dualism argument is an incompatibilist argument which is stronger than the Jackson-Chalmers argument or Kripke's argument and I critically explore some recent attempts in the literature to deal with it. The conclusion is that a compatibilist view, one able to cope with the property dualism argument, is still pending. (shrink)

Llamamos “conocimiento fenoménico” al conocimiento de nuestras experiencias conscientes: al saber cómo es tener una determinada experiencia. Los conceptos fenoménicos son aquellos asociados a este conocimiento y refieren, de modo introspectivo y directo, a las propiedades fenoménicas de nuestras experiencias. El papel que juegan estos conceptos es esencial en la filosofía de la mente contemporánea en la medida que muchos de sus defensores creen que una explicación adecuada de su naturaleza nos permitirá disipar un sinfín de rompecabezas epistemológicos (sobre la (...) relación de los individuos con sus estados fenoménicos) y metafísicos (que giran en torno a la naturaleza de la consciencia). Estos problemas son dos caras de la misma moneda y una respuesta a uno conlleva, necesariamente, implicaciones para el otro. Mi objetivo en este artículo es ofrecer una introducción al papel que desempeñan los conceptos fenoménicos en el debate metafísico en torno a la naturaleza de la consciencia. En especial, esta exposición se centra en la Estrategia de los Conceptos Fenoménicos, una de las respuestas fisicistas a los argumentos dualistas cuya conclusión es que no es posible acomodar una explicación de la consciencia en un marco fisicista. Para ello, en §1 describo la tesis central del fisicismo y presento uno de los más célebres argumentos en su contra: el argumento del conocimiento. Enseguida, en §2 expongo qué son los conceptos fenoménicos y en qué difieren de otro tipo de conceptos, en §3 explico el modus operandi de la Estrategia de los Conceptos Fenoménicos en respuesta a los retos dualistas señalados en §1, y en §4 menciono algunas de las objeciones más frecuentes en contra de esta estrategia. Finalmente, en §5 hago una síntesis de los puntos esenciales discutidos en este artículo. (shrink)

Many contemporary philosophers of mind are concerned to defend a thesis called a posteriori physicalism. This thesis has two parts, one metaphysical, and the other epistemological. The metaphysical part of the thesis—the physicalist part—is the claim that the psychological nature of the actual world is wholly physical. The epistemological part of the thesis—the a posteriori part—is the claim that no a priori connection holds between psychological nature and physical nature. Despite its attractiveness, however, a familiar argument alleges that a posteriori (...) physicalism cannot be true. This argument is sometimes called the Property Dualism Argument Against Physicalism. In this paper, I consider Stephen White’s version of the Property Dualism Argument and argue that it fails. I distinguish two ways in which the argument’s crucial notion might be understood, and I argue that on neither way of understanding it is the Property Dualism Argument compelling. (shrink)

Qualia include the ways things look, sound and smell, the way it feels to have a pain; more generally, what it's like to have mental states. Qualia are experiential properties of sensations, feelings, perceptions and, in my view, thoughts and desires as well. But, so defined, who could deny that qualia exist? Yet, the existence of qualia is controversial. Here is what is controversial: whether qualia, so defined, can be characterized in intentional, functional or purely cognitive terms. Opponents of qualia (...) think that the content of experience is intentional content, or that experiences are functionally definable, or that to have a qualitative state is to have a state that is monitored in a certain way or accompanied by a thought to the effect that I have that state. If we include the idea that experiential properties are not intentional or functional or purely cognitive in the definition of ` qualia ', then it is controversial whether there are qualia. (shrink)

Charles Siewert's _The Significance of Consciousness_ contends that most philosophers and psychologists who have written about "consciousness" have neglected a crucial type or aspect that Siewert calls "phenomenal consciousness" and tries carefully to define. The present article argues that some philosophers, at least, have not neglected phenomenal consciousness and have offered tenable theories of it.