When it comes to applying computational theory to the problem of phenomenal consciousness, cognitive scientists appear to face a dilemma. The only strategy that seems to be available is one that explains consciousness in terms of special kinds of computational processes. But such theories, while they dominate the field, have counter-intuitive consequences; in particular, they force one to accept that phenomenal experience is composed of information processing effects. For cognitive scientists, therefore, it seems to come down to a choice between (...) a counter-intuitive theory or no theory at all. We offer a way out of this dilemma. We argue that the computational theory of mind doesn't force cognitive scientists to explain consciousness in terms of computational processes, as there is an alternative strategy available: one that focuses on the representational vehicles that encode information in the brain. This alternative approach to consciousness allows us to do justice to the standard intuitions about phenomenal experience, yet remain within the confines of cognitive science. (shrink)

O'Regan & Noë (O&N) fail to address adequately the two most historically important reasons for seeking to explain visual experience in terms of internal representations. They are silent about the apparently inferential nature of perception, and mistaken about the significance of the phenomenology accompanying dreams, hallucinations, and mental imagery.

In their target article, Hutto and Satne eloquently articulate the failings of most current attempts to naturalize mental content. Furthermore, we think they are correct in their insistence that the only way forward is by drawing a distinction between two kinds of intentionality, one of which is considerably weaker than—and should be deployed to explain—the propositional variety most philosophers take for granted. The problem is that their own rendering of this weaker form of intentionality—contentless intentionality—is too weak. What’s needed is (...) a species of intentionality distinct from both the industrial-strength version beloved by philosophers and the intentionality lite recommended by Hutto and Satne. We briefly motivate and sketch this alternative, and say a few words about the account of cognition that it spawns. (shrink)

Reformers urge that representation no longer earns its explanatory keep in cognitive science, and that it is time to discard this troublesome concept. In contrast, we hold that without representation cognitive science is utterly bereft of tools for explaining natural intelligence. In order to defend the latter position, we focus on the explanatory role of representation in computation. We examine how the methods of digital and analog computation are used to model a relatively simple target system, and show that representation (...) plays an in-eliminable explanatory role in both cases. We conclude that, to the extent that biologic systems engage in computation, representation is destined to play an explanatory role in cognitive science. (shrink)

© 2003 by The Johns Hopkins University Press.

In recent years, a number of contemporary proponents of psychoanalysis have sought to derive support for their conjectures about the _dynamic_ unconscious from the empirical evidence in favor of the _cognitive_ unconscious. It is our contention, however, that far from supporting the dynamic unconscious, recent work in cognitive science suggests that the time has come to dispense with this concept altogether. In this paper we defend this claim in two ways. First, we argue that any attempt to shore up the (...) dynamic unconscious with the cognitive unconscious is bound to fail, simply because the latter, as it is understood in contemporary cognitive science, is incompatible with the former, as it is traditionally conceived by psychoanalytic theory. Second, we show how psychological phenomena traditionally cited as evidence for the operation of a dynamic unconscious can be accommodated more parsimoniously by other means. (shrink)

Kubovy and Epstein distinguish between systems that follow rules, and those that merely instantiate them. They regard compliance with the principles of kinematic geometry in apparent motion as a case of instantiation. There is, however, some reason to believe that the human visual system internalizes the principles of kinematic geometry, even if it does not explicitly represent them. We offer functional resemblance as a criterion for internal representation. [Kubovy & Epstein].

Carruthers presents evidence concerning the cross-modular integration of information in human subjects which appears to support the “cognitive conception of language.” According to this conception, language is not just a means of communication, but also a representational medium of thought. However, Carruthers overlooks the possibility that language, in both its communicative and cognitive roles, is a nonrepresentational system of conventional signals – that words are not a medium we think in, but a tool we think with. The evidence he cites (...) is equivocal when it comes to choosing between the cognitive conception and this radical communicative conception of language. (shrink)

We are sympathetic with the broad aims of Perruchet & Vinter's “mentalistic” framework. But it is implausible to claim, as they do, that human cognition can be understood without recourse to unconsciously represented information. In our view, this strategy forsakes the only available mechanistic understanding of intelligent behaviour. Our purpose here is to plot a course midway between the classical unconscious and Perruchet &Vinter's own noncomputational associationism.

This paper reports on-going work in the eSCAPE Project (Esprit Long Term Research Project 25377) directed to the research and development of electronic landscapes for public use. Our concern here is to elucidate a sociologically informed approach towards the design of electronic landscapes or virtual worlds. We suggest — and demonstrate through ethnographic studies of virtual technologies at a multimedia art museum and information technology trade show — that members sense of space is produced through social practices tied to the (...) accomplishment of activities occurring within the locations their actions are situated. Space, in other words, is socially constructed and shaped through members’ practices for accomplishing situated activities. We explicate, by practical examples, an approach to discovering social practices in and through which a sense of space is constructed and outline how such understandings may be used to formulate requirements for the design of electronic landscapes. In explicating our ethnographically informed approach, we outline how future technologies may bedeveloped through the situated evaluation of experimental prototypes in public use. (shrink)

Immanuel Kant’s position on special revelation is a matter of debate. Here I discuss Kant’s position in detail and compare it to that of Richard Swinburne. I examine both philosophers’ views on the assertability of special revelation, its contingency, whether it is necessary, the possibility of error, and appropriate methods of interpretation. I argue that, like Swinburne, Kant finds belief in special revelation to be acceptable, even beneficial, under certain circumstances.

Doctors have an ethical and legal duty to respect patient confidentiality. We consider the basis for this duty, looking particularly at the meaning and value of autonomy in health care. Enabling patients to decide how information about them is disclosed is an important element in autonomy and helps patients engage as active partners in their care.Good quality data is, however, essential for research, education, public health monitoring, and for many other activities essential to provision of health care. We discuss whether (...) it is necessary to choose between individual rights and the wider public interest and conclude that this should only rarely be necessary. The paper makes some recommendations on practical steps which could help ensure that good quality information is available for work which benefits society and the public health, while still enabling patients’ autonomy to be respected. (shrink)

O'Brien provides a critical assessment of Ernest Mandel's 1975 monograph Late Capitalism. In so doing, he offers a historical narrative that puts into question Mandel's framing of 'waves' of capitalist development as a process of capital accumulation that was dependent upon uneven development in the Third World. O'Brien starts by problematising Mandel's argument that an initial concentration of money, capital and bullion in the hands of Europeans explains combined and uneven development. He goes on to demonstrate that Mandel's notion of (...) imperialism as a necessary conduit for the flow of surplus capital from industrialising Europe does not stand up to the historical evidence. In fact, O'Brien maintains an alternative thesis, namely that these marginalised regions were insuffciently penetrated by European capital. (shrink)

How is it that we think and refer in the first-person way? For most philosophers in the analytic tradition, the problem is essentially this: how two apparently conflicting kinds of properties can be reconciled and united as properties of the same entity. What is special about the first person has to be reconciled with what is ordinary about it. The range of responses reduces to four basic options. The orthodox view is optimistic: there really is a way of reconciling these (...) apparently contradictory properties as contained within the same thing. The heretical views are pessimistic and content to be so: there is no such way, and that is because there is simply nothing to reconcile – because there is really nothing special about what is in question; or there is really nothing ordinary about it; or there is really nothing …. (shrink)

Oaksford & Chater (O&C) have rejected logic in favor of probability theory for reasons that are irrelevant to mental-logic theory, because mental-logic theory differs from standard logic in significant ways. Similar to O&C, mental-logic theory rejects the use of the material conditional and deals with the completeness problem by limiting the scope of its procedures to local sets of propositions.

It is commonplace for both philosophers and cognitive scientists to express their allegiance to the "unity of consciousness". This is the claim that a subject’s phenomenal consciousness, at any one moment in time, is a single thing. This view has had a major influence on computational theories of consciousness. In particular, what we call single-track theories dominate the literature, theories which contend that our conscious experience is the result of a single consciousness-making process or mechanism in the brain. We argue (...) that the orthodox view is quite wrong: phenomenal experience is not a unity, in the sense of being a single thing at each instant. It is a multiplicity, an aggregate of phenomenal elements, each of which is the product of a distinct consciousness-making mechanism in the brain. Consequently, cognitive science is in need of a multi-track theory of consciousness; a computational model that acknowledges both the manifold nature of experience, and its distributed neural basis. (shrink)

Although connectionism is advocated by its proponents as an alternative to the classical computational theory of mind, doubts persist about its _computational_ credentials. Our aim is to dispel these doubts by explaining how connectionist networks compute. We first develop a generic account of computation—no easy task, because computation, like almost every other foundational concept in cognitive science, has resisted canonical definition. We opt for a characterisation that does justice to the explanatory role of computation in cognitive science. Next we examine (...) what might be regarded as the “conventional” account of connectionist computation. We show why this account is inadequate and hence fosters the suspicion that connectionist networks aren’t genuinely computational. Lastly, we turn to the principal task of the paper: the development of a more robust portrait of connectionist computation. The basis of this portrait is an explanation of the representational capacities of connection weights, supported by an analysis of the weight configurations of a series of simulated neural networks. (shrink)

My aim in this paper is to articulate further what may be called an agency theory of self-knowledge. Many theorists have stressed how important agency is to self- knowledge, and much work has been done drawing connections between the two notions.² However, it has not always been clear what _epistemic_ advantage agency gives us in this area and why it does so. I take it as a constraint on an adequate account of how a subject knows her own mental states (...) and acts, that it construe the known mental states and acts realistically and as independent of their self-ascription, and that it deliver genuine epistemic standing to the knower. The main task of the paper will, then, be to explore how our having rational agency with respect to our mental states may be able to secure genuine epistemic warrant for our self-ascriptions of states or acts independent of the ascriptions. This task will be carried out by focussing on the question of what account we should give of our knowledge of what I call our acts of judging. In the remainder of this section, I will do a little to clarify what is meant by that question. Section 2 will attempt to introduce us to elements of the best way to approach the question by considering some alternative strategies. Section 3 is devoted to forming some idea of what _kind_ of warrant we are looking for when considering how agency might give us self-knowledge. Section 4 aims to present a suggestion as to how agency gives us the kind of warrant identified over our acts of judging. Section 5 deals with some objections. (shrink)

THIS article concerning Mr. Marshall's open letter to Governor Smith does not pretend to be an answer. It suggests some philosophical considerations on the point at issue. The Editor.

_"The Essential Plotinus_ is a lifesaver. For many years my students in Greek and Roman Religion have depended on it to understand the transition from antiquity to the Middle Ages. The translation is crisp and clear, and the excerpts are just right for an introduction to Plotionus's many-layered view of the world and humankind’s place in it." --F. E. Romer, University of Arizona.

ANALOGY has not just to do with the abstruse details and niceties of metaphysics but rather underlies the structure of all metaphysical thought. It is the heart of metaphysics. No system of metaphysics can discard it, without prejudice to the richness and variety of being. Without analogy there is elimination and over-simplification. Metaphysics is far from being a straightforward science; it is highly complex and its method and style of argument are not easy to master. Its field of inquiry is (...) wide. It is the task of the metaphysician to reduce the world of things to an intelligible unity. (shrink)

Niche construction is the process whereby organisms, through their activities and choices, modify their own and each other’s niches. By transforming natural-selection pressures, niche construction generates feedback in evolution at various different levels. Niche-constructing species play important ecological roles by creating habitats and resources used by other species and thereby affecting the flow of energy and matter through ecosystems—a process often referred to as “ecosystem engineering.” An important emphasis of niche construction theory (NCT) is that acquired characters play an evolutionary (...) role through transforming selective environments. This is particularly relevant to human evolution, where our species has engaged in extensive environmental modification through cultural practices. Humans can construct developmental environments that feed back to affect how individuals learn and develop and the diseases to which they are exposed. Here we provide an introduction to NCT and illustrate some of its more important implications for the human sciences. (shrink)

This study offers a new analysis of the last argument of Plato's Phaedo for the immortality of the soul. Interpretations of this argument and especially of the last section have differed considerably. Judgements on its value have usually been adverse. One scholar speaks of the ‘screen of unreal argument’ which concludes the proof, and writes that ‘from the standpoint of logic the argument has petered out into futility’. Another describes the final stage of the proof as ‘a blatant petitio principii’. (...) A third remarks that the conclusion follows ‘if we do not look too closely’. (shrink)

It is suggested that George Cotkin's essay is unpersuasive in its two central claims. Firstly, the evidence is not persuasive that there has been a discernible "moral turn" among historians in the last two decades; rather, it is argued that an engagement with morality has been fairly constant in historical scholarship since its ancient origins. Secondly, it is felt that Cotkin is evasive on whether he wishes historians merely to have opinions about the moralities of others in the past or (...) to be moral agents themselves; the first position is thought to be tenable, the latter probably not. (shrink)

We think the best prospect for a naturalistic explanation of phenomenal consciousness is to be found at the confluence of two influential ideas about the mind. The first is the _computational _ _theory of mind_: the theory that treats human cognitive processes as disciplined operations over neurally realised representing vehicles.1 The second is the _representationalist theory of _ _consciousness_: the theory that takes the phenomenal character of conscious experiences (the “what-it-is-likeness”) to be constituted by their representational content.2 Together these two (...) theories suggest that phenomenal consciousness might be explicable in terms of the representational content of the neurally realised representing vehicles that are generated and manipulated in the course of cognition. The simplest and most elegant hypothesis that one might entertain in this regard is that conscious experiences are identical to (i.e., are one and the same as) the brain’s representing vehicles. (shrink)

The origin of matter is one of the last and greatest unsolved mysteries bedevilling modern attempts at understanding the philosophy of the "Enneads." There are two stages in the production of Intellect and of soul. The One or Intellect produces an undifferentiated other, which becomes Intellect or soul by itself turning towards and looking towards the prior principle, with no possibility of the One's "turning towards" or "seeing" itself. But where does matter come from? To arrive at his conception of (...) matter, Plotinus has radically altered the definitions of non-being given by Plato and Aristotle in their refutation of Parmenides. Matter, for Plotinus, is a non-being opposed, not to "the being of each thing", as in Plato's "Sophist," but to all "the beings properly so-called", i.e. to all the forms. It is then further identified with Aristotle's definition of non-being as privation, with the crucial difference that privation, for Plotinus, is made a permanent substratum of change. This re-formulation of ideas from the "Sophist" and the "Physics" proves unmistakably that it is matter which is generated when soul produces a "non-being" which is also a "total lack of definition". The production of matter by soul does not, however, follow the model of the production of Intellect from the One or of soul from Intellect. Since matter is lifeless, it cannot turn towards its source. Soul therefore has to be herself directly responsible both for the production of matter and for the covering of matter with form. Matter is therefore included among the products which stem ultimately from the One. But the origin and the nature of matter have to be understood as very different from the double process of emanation which lies at the origin of Intellect and of soul. (shrink)

This paper argues that Gareth Evans' treatment of first person reference based on the myriad ways we have of receiving information about our bodies and location, cannot secure the guaranteed reference exhibited by first person reference. It faces a problem both when a subject fails to receive such information about herself, and when she receives misinformation.

Does the matter of the sensible world, for Plotinus as for Plato and Aristotle, exist without a cause of its existence? Long divided on the answer to that question, scholarly opinion now veers in favour of a derivation of matter from principles prior to matter, with disagreement limited to the details of the theory. What exactly is implied by the various passages of the Enneads where Plotinus writes of soul or physis in relation to `darkness' and `non-being', matter and form? (...) In the pages that follow, I argue that the soul's `making' of a `non-being' that by implication is matter, in Enn. III 9 [13] 3, is logically antecedent to the `making' of `visible form' ascribed to physis in Enn. III 8 [30] 2. A detailed study of the context and the syntax of the latter passage shows that, contrary to an interpretation put forward recently in this Journal, the two `makings' cannot be the same. (shrink)

One kind of successful communication involves the transmission of knowledge from speaker to hearer. Such testimonial knowledge transmission is usually seen as conforming to three widely held epistemological approaches: reliabilism, impartialism and evidentialism. First, a speaker must be a reliable testifier in order that she transmits knowledge, and reliability is cashed out in terms of her likelihood of speaking the truth. Second, if a certain speaker's testimony has sufficient epistemic weight to be believed by hearer1, then it should also be (...) believed by hearer2. Third, the normative constraint here is evidentially grounded: whether or not a hearer should believe a speaker depends on the evidence the hearer has that the speaker is telling the truth. I argue that there are cases of testimonial knowledge transmission that are incompatible with these three claims. This is when one accepts the testimony of an intimate friend. (shrink)

In this paper I want to propose that we see solipsism as arising from certain problems we have about identifying ourselves as subjects in an objective world. The discussion will centre on Wittgenstein.

Any creature that must move around in its environment to find nutrients and mates, in order to survive and reproduce, faces the problem of sensorimotor control. A solution to this problem requires an on-board control mechanism that can shape the creature’s behaviour so as to render it “appropriate” to the conditions that obtain. There are at least three ways in which such a control mechanism can work, and Nature has exploited them all. The first and most basic way is for (...) a creature to bump into the things in its environment, and then, depending on what has been encountered, seek to modify its behaviour accordingly. Such an approach is risky, however, since some things in the environment are distinctly unfriendly. A second and better way, therefore, is for a creature to exploit ambient forms of energy that carry information about the distal structure of the environment. This is an improvement on the first method since it enables the creature to respond to the surroundings without actually bumping into anything. Nonetheless, this second method also has its limitations, one of which is that the information conveyed by such ambient energy is often impoverished, ambiguous and intermittent. (shrink)

Hume is usually taken to have an evidentialist account of testimonial belief: one is justified in believing what someone says if one has empincal evidence that they have been reliable in the past. This account is impartialist: such evidence is required no matter who the person is, or what refotions she may have to you. I, however, argue that Hume has another account of testimony, one grounded in sympathy. This account is partialist, in that empincal evidence is not required in (...) order for one to be justified in believing some of the assertions of one's friends. (shrink)

Lucy O'Brien argues that a satisfactory account of first-person reference and self-knowledge needs to concentrate on our nature as agents. Clearly written, with rigorous discussion of rival views, this book will be of interest to anyone working in the philosophy of mind and action.

The plot of Iphigenia in Tauris is usually thought to be Euripides' own invention. Its basic assumption can be found in Proclus' summary of the Cypria, viz. that a deer was substituted for Iphigenia during the sacrifice at Aulis and that she herself was removed to the land of the Tauri. Her later rescue by Orestes and Pylades, however, cannot be traced with probability to any work of art or literature earlier than Euripides' play. In this play, in which Orestes (...) recognizes and then saves the sister whom he had long thought dead, it is assumed that her replacement by a deer went unseen by those present at the sacrifice. The sequel which this assumption allowed Euripides to invent is original only in a limited sense, since it bears the imprint of several familiar story types. These types include the following: the murder of a kinsman is narrowly averted by a recognition; a reunion is followed by an intrigue; and a maiden is rescued. Each is used elsewhere by Euripides. The first two, for example, are found in Cresphontes, the second in Electra, and the third in Andromeda. Correspondences of this sort, based on plot patterns, will naturally gain in interest if it can be shown that they throw light on a play's meaning or on the process that led to its creation. The student of dramatic plots, however, soon discovers that analogies between them are easy to draw and can be quickly multiplied. (shrink)

This paper addresses the question “what connection is there between our answer to the question of what we are, and the question, what our actions are?” Suppose that actions are reflexive changes of agents. On that supposition, there would be a direct connection between the answers to those two questions. An action of mine will be a reflexive change of me, and what I am will fix the nature of those changes. I hold that supposition to be true and consider (...) reasons in favor of believing it. However, the paper is not primarily aimed at defense of that thesis. It rather concerned with exploring what consequences accepting it has for the competing notions of what we are, given what we ordinarily think actions are, and bringing to light a tension between thinking of actions as reflexive changes of agents in this way, and a kind of causal understanding of actions that is prevalent. What emerges is that we should shift where we start our theorizing: we cannot assume that action theory primarily involves the task of characterizing the relation between an agent and changes caused, rather than a characterization of a particular kind of relation between the agent and herself. (shrink)

The connectionist vehicle theory of phenomenal experience in the target article identifies consciousness with the brain’s explicit representation of information in the form of stable patterns of neural activity. Commentators raise concerns about both the conceptual and empirical adequacy of this proposal. On the former front they worry about our reliance on vehicles, on representation, on stable patterns of activity, and on our identity claim. On the latter front their concerns range from the general plausibility of a vehicle theory to (...) our specific attempts to deal with the dissociation studies. We address these concerns, and then finish by considering whether the vehicle theory we have defended has a coherent story to tell about the active, unified subject to whom conscious experiences belong. (shrink)

While new generations of implantable brain computer interface devices are being developed, evidence in the literature about their impact on the patient experience is lagging. In this article, we address this knowledge gap by analysing data from the first-in-human clinical trial to study patients with implanted BCI advisory devices. We explored perceptions of self-change across six patients who volunteered to be implanted with artificially intelligent BCI devices. We used qualitative methodological tools grounded in phenomenology to conduct in-depth, semi-structured interviews. Results (...) show that, on the one hand, BCIs can positively increase a sense of the self and control; on the other hand, they can induce radical distress, feelings of loss of control, and a rupture of patient identity. We conclude by offering suggestions for the proactive creation of preparedness protocols specific to intelligent—predictive and advisory—BCI technologies essential to prevent potential iatrogenic harms. (shrink)