RésuméL'ouvrage de Sophia Moreau, Faces of Inequality, adopte une méthodologie philosophique provocatrice. Moreau puise dans les expériences des victimes de discrimination et à même les contours fondamentaux du droit à la non-discrimination afin d’élaborer sa théorie de la discrimination répréhensible. Cependant, si nous prenons au sérieux les enseignements des études féministes et critiques de la « race », une tension émerge au sein de la dyade méthodologique de Moreau : si les lois contre la discrimination sont souvent elles-mêmes source d'hostilité (...) et d'invalidation pour les victimes de discrimination, comment ces expériences et ces lois peuvent-elles toutes deux faire autorité pour déterminer la nature de la discrimination répréhensible? Cet article explore cette tension à l’œuvre dans Faces of Inequality à la lumière de la théorie de la « conscience multiple » de Mari Matsuda. (shrink)

A seminal work on the unconscious and its mechanisms. Examines the interaction between voluntary (conscious) and involuntary (unconscious) human control mechanisms in terms of dissociation of divided consciousness. Delineates a neodissociation interpretation that recognizes historical roots without requiring commitment. Presents a wide range of data on possession states, fugues, multiple personalities, amnesia, dreams, hallucinations, automatic writing, and aggressions.

The multiple realizability thesis (MRT) is an important philosophical and psychological concept. It says any mental state can be constructed by multiple realizability (MR), meaning in many distinct ways from different physical parts. The goal of our study is to find if the MRT applies to the mental state of consciousness among animals. Many things have been written about MRT but the ones most applicable to animal consciousness are by Shapiro in a 2004 book called The (...) Mind Incarnate and by Polger and Shapiro in their 2016 work, The Multiple Realization Book. Standard, classical MRT has been around since 1967 and it says that a mental state can havevery manydifferent physical realizations, in a nearly unlimited manner. To the contrary, Shapiro’s book reasoned that physical, physiological, and historical constraints force mental traits to evolve in just a few, limited directions, which is seen as convergent evolution of the associated neural traits in different animal lineages. This is his mental constraint thesis (MCT). We examined the evolution of consciousness in animals and found that it arose independently in just three animal clades—vertebrates, arthropods, and cephalopod mollusks—all of which share many consciousness-associated traits: elaborate sensory organs and brains, high capacity for memory, directed mobility, etc. These three constrained, convergently evolved routes to consciousness fit Shapiro’s original MCT. More recently, Polger and Shapiro’s book presented much the same thesis but changed its name from MCT to a “modest identity thesis.” Furthermore, they argued against almost all the classically offered instances of MR in animal evolution, especially against the evidence of neural plasticity and the differently expanded cerebrums of mammals and birds. In contrast, we argue that some of these classical examples of MR are indeed valid and that Shapiro’s original MCT correction of MRT is the better account of the evolution of consciousness in animal clades. And we still agree that constraints and convergence refute the standard, nearly unconstrained, MRT. (shrink)

One of the most striking manifestations of schizophrenia is thought insertion. People suffering from this delusion believe they are not the author of thoughts which they nevertheless own as experiences. It seems that a person’s sense of agency and their sense of the boundary between mind and world can come apart. Schizophrenia thus vividly demonstrates that self awareness is a complex construction of the brain. This point is widely appreciated. What is not so widely appreciated is how radically schizophrenia challenges (...) our assumptions about the nature of the self. Most theorists endorse the traditional doctrine of the unity of consciousness, according to which a normal human brain generates a single consciousness at any instant in time. In this paper we argue that phenomenal consciousness at each instant is actually a multiplicity: an aggregate of phenomenal elements, each of which is the product of a distinct consciousness-making mechanism in the brain. We then consider how certain aspects of self might emerge from this manifold substrate, and speculate about the origin of thought insertion. (shrink)

How has multiplicity superseded impossibility in philosophical challenges to artificial consciousness? I assess a trajectory in recent debates on artificial consciousness, in which metaphysical and explanatory challenges to the possibility of building conscious machines lead to epistemological concerns about the multiplicity underlying ‘what it is like’ to be a conscious creature or be in a conscious state. First, I analyse earlier challenges which claim that phenomenal consciousness cannot arise, or cannot be built, in machines. These are based (...) on Block’s Chinese Nation and Chalmers’ Hard Problem. To defuse such challenges, theorists of artificial consciousness can appeal to empirical methods and models of explanation. Second, I explain why this naturalistic approach produces an epistemological puzzle on the role of biological properties in phenomenal consciousness. Neither behavioural tests nor theoretical inferences seem to settle whether our machines are conscious. Third, I evaluate whether the new challenge can be managed through a more fine-grained taxonomy of conscious states. This strategy is supported by the development of similar taxonomies for biological species and animal consciousness. Although it makes sense of some current models of artificial consciousness, it raises questions about their subjective and moral significance. (shrink)

Short-term or working memory provides temporary storage of information in the brain after an experience and is associated with conscious awareness. Neurons sensitive to the multiple stimulus attributes comprising an experience are distributed within many brain regions. Such distributed cell assemblies, activated by an event, are the most plausible system to represent the WM of that event. Studies with a variety of imaging technologies have implicated widespread brain regions in the mediation of WM for different categories of information. Each (...) kind of WM may thus be expected to involve many brain regions rather than a local, uniquely dedicated set of cells. Neurons in a distributed “cell assembly” may be self-selected by their temporally coherent activations. The process by which this fragmented representation of the recent past is reassembled to accomplish essentially automatic and reliable recognition of a recurrent event constitutes an important problem. One plausible mechanism to achieve the identification of past with previous events would require that the representational system mediating WM must coexist in spatial extent and somehow overlap in temporal activation with cell ensembles registering input from subsequent events. The detection of such a postulated mechanism required an experimental approach which would focus upon spatial patterns of coherent activation while information about different events was stored in WM and retrieved, rather than focusing upon the temporal sequences of activation in localized regions of interest. For this purpose, the familiar delayed matching from sample task was modified. A series of information-free flashes, or “noncontingent probes,” was presented before an initial series of visual information items, the Priming Sample, which were to be held in WM during a Delay Period. A second series of visual information items were then presented, the Matching Sample. The task required detection of any item in the second series which had beenabsentfrom the initial series. Thirty such trials with a particular category of visual information constituted a single task. Several DMS tasks with this standardized design, but with different categories of visual information, were presented within each test session. The information categories included letters of the alphabet, single digit numbers, or faces from a school yearbook. Event-related potentials , were computed from 21 standardized electrode placements, separately for information-free probes and for information items in each interval of the trials within a task. Because each electrode is particularly sensitive to coherent activation of neurons in the immediately underlying brain regions, topographic maps were constructed and interpolated across the surface of the scalp. The momentary fluctuations of the resulting voltage “landscapes” throughout the task were then subjected to quantitative analysis. Distinctive landscapes sometimes persisted for prolonged periods, implying sustained engagement of very large populations of neurons. “Difference landscapes” were constructed by subtraction of topographic maps evoked by noncontingent probes during the Delay Period from maps of probe ERPs before the presentation of the initial information in the Priming Sample. Such probe difference landscapes displayed recurrent high similarity to momentary landscapes elicited during subsequent presentation of the information items in the Matching Sample. It seemed as if the distributed cell assembly continuously engaged by mediation of WM of the diverse attributes of the initial stimuli was being dynamically compared to the ensembles engaged by registration of the subsequent stimuli. Spatial Principal Component Analysis was applied to the sequences of momentary voltage landscapes observed throughout trials of each task. This method sought a small number of spatial patterns with which these large sets of inhomogeneous spatial distributions of voltage could be reconstructed. This is the spatial analog of the reconstruction of local ERPs by temporal principal components, as often described previously. Five Spatial Principal Components were found which accounted for about 90% of the total variance of voltage across the surface of the scalp throughout every task. Theloadings,or distinguishing topographic features, of these SPCs, were highly similar during every cognitive task for every subject. However,factor scores,or relative average contribution to the overall voltage distributions, of the different SPCs varied substantially among subjects between the tasks and momentarily within successive intervals of each task. These five SPCs may reflect coherent activation of huge distributed ensembles of neurons which comprise independent but interacting functional brain subsystems. These subsystems may correspond to basic resources available to individuals for allocation to mediate conscious evaluation of information during cognitive activity, providing a filter to bind together fractionated representations of the past to evaluate the present. (shrink)

Merker's core idea, that the experience of being conscious reflects the interactions of actions, targets, and motivations in the upper brainstem, with cortex providing the content of the conscious experience, merits serious consideration. However, we have two areas of concern: first, that his definition of consciousness is so broad that it is difficult to find any organisms with a brain that could be non-conscious; second, that the focus on one cortical–subcortical system neglects other systems (e.g., basal forebrain and brainstem (...) cholinergic systems and their cortical and thalamic target areas) which may be of at least equal significance. (Published Online May 1 2007). (shrink)

In this Letter to the Editor, we seize the opportunity to respond to the recent comments by Anzulewicz and Wierzchoń, and further clarify and extend the scope of our original paper. We re‐emphasize that conscious experiences come in degrees, and that there are several factors that determine this degree. Endorsing the suggestions of Anzulewicz and Wierzchoń, we discuss that besides low‐level attentional mechanisms, high‐level attentional and non‐attentional mechanisms might also modulate the quality of conscious experiences.

Self and Consciousness: Multiple Perspectives. Edited by Frank S. Kessel. Pamela M. Cole. and Dale L. Johnson. Hillsdale, NJ: Lawrence Erlbaum Associates, 1992. 136 Pp. $16.50 (cloth).

I explore some surprising convergences between apparently opposite theories of consciousness—panpsychism and eliminativism. I outline what a ‘Dennettian panpsychism’ might look like, and consider some of the challenging but fertile questions it raises about determinacy, holism, and subjecthood.What unites constitutive panpsychism and the multiple drafts model is that both present the unitary consciousness we can report as resting atop a multiplicity of independent processes; both reject as misguided the search for a definite threshold between processing that is (...) truly conscious and that which is merely preconscious. What divides them is that Dennett regards it as unreasonable to posit inaccessible consciousness, but reasonable to doubt or deny the existence of consciousness, while panpsychists think the opposite. (shrink)

I explore some surprising convergences between apparently opposite theories of consciousness—panpsychism and eliminativism. I outline what a ‘Dennettian panpsychism’ might look like, and consider some of the challenging but fertile questions it raises about determinacy, holism, and subjecthood.What unites constitutive panpsychism and the multiple drafts model is that both present the unitary consciousness we can report as resting atop a multiplicity of independent processes; both reject as misguided the search for a definite threshold between processing that is (...) truly conscious and that which is merely preconscious. What divides them is that Dennett regards it as unreasonable to posit inaccessible consciousness, but reasonable to doubt or deny the existence of consciousness, while panpsychists think the opposite. (shrink)

In Consciousness Explained, Daniel Dennett presents the Multiple Drafts Theory of consciousness, a very brief, largely empirical theory of brain function. From these premises, he draws a number of quite radical conclusions—for example, the conclusion that conscious events have no determinate time of occurrence. The problem, as many readers have pointed out, is that there is little discernible route from the empirical premises to the philosophical conclusions. In this article, I try to reconstruct Dennett's argument, providing both (...) the philosophical views behind the empirical premises, and the hidden empirical arguments behind the derivation of the philosophical conclusions. (shrink)

This volume contains an array of essays that reflect, and reflect upon, the recent revival of scholarly interest in the self and consciousness. Various relevant issues are addressed in conceptually challenging ways, such as how consciousness and different forms of self-relevant experience develop in infancy and childhood and are related to the acquisition of skill; the role of the self in social development; the phenomenology of being conscious and its metapsychological implications; and the cultural foundations of conceptualizations of (...) consciousness. Written by notable scholars in several areas of psychology, philosophy, cognitive neuroscience, and anthropology, the essays are of interest to readers from a variety of disciplines concerned with central, substantive questions in contemporary social science, and the humanities. (shrink)

The world (specifically the universe in which modern mankind, the same below) there is no absolute essence. The world's primitive also has uncertainty; the existence of all is possible. On the universe in which modern human live, the unity and distinction of material and spirit constitute the world's basic contradiction. (1) The unity of material and spirit. Many have a negative in the overall delicate generation: the material includes the spirit, the spirit depends on the material, among them under certain (...) conditions can be transformed into each other. (2) The material and spirit is distinct: The material is essentially an objective system, the objective freedom is the essence of the spirit.The collection system is the unity of opposites; freedom is relative to the state system. (3) The spirit and awareness are two different concepts, it is necessary to distinguish between. Material and the sense of confrontation: the material is an objective reality, subjective consciousness is reflected. (4) The material and the sense of unity: the material is the source of awareness, consciousness is a product of material; material decides consciousness, awareness counterproductive in the material. Material and a sense of the unity of opposites minor contradictions in the world. (5) World of certainty and uncertainty, know and unknown, relative and absolute, as well as activity problems are dialectical. (6) Dialectics generally applicable to the entire world, but also dialectical view of its own, it should be the development of a multiple, three-dimensional, not the sleek dialectics. (shrink)

Since Hilary Putnam offered multiple realization as an empirical hypothesis in the 1960s, philosophical consensus has turned against the idea that mental processes are identifiable with brain processes, and multiple realization has become the keystone of the 'antireductive consensus' across philosophy of science. Thomas W. Polger and Lawrence A. Shapiro offer the first book-length investigation of multiple realization, which serves as a starting point to a series of philosophically sophisticated and empirically informed arguments that cast doubt on (...) the generality of multiple realization in the cognitive sciences. They argue that mind-brain identities have played an important role in the growth and achievements of the cognitive sciences, and suggest that there is little prospect for multiple realization in an empirically-based theory of mind. This leads Polger and Shapiro to offer an alternative framework for understanding explanations in the cognitive sciences, as well as in chemistry, biology, and other non-basic sciences. (shrink)

Opponents to consciousness in fish argue that fish do not feel pain because they do not have a neocortex, which is a necessary condition for feeling pain. A common counter-argument appeals to the multiple realizability of pain: while a neocortex might be necessary for feeling pain in humans, pain might be realized differently in fish. This paper argues, first, that it is impossible to find a criterion allowing us to demarcate between plausible and implausible cases of multiple (...) realization of pain without running into a circular argument. Second, opponents to consciousness in fish cannot be provided with reasons to believe in the multiple realizability of pain. I conclude that the debate on the existence of pain in fish is impossible to settle by relying on the multiple realization argument. (shrink)

This paper is an overview of recent discussions concerning the mind–body problem that have been taking place at the interface between philosophy and neuroscience. In it I focus on phenomenal consciousness or “qualia”, which I distinguish from various related issues (sections 1-2). I then discuss various influential skeptical arguments that question the possibility of reductive explanations of qualia in physicalist terms: knowledge arguments, conceivability arguments, the argument from multiple realizability and the explanatory gap argument. None of the arguments (...) is found entirely convincing (section 3). It does not necessarily follow that reductive physicalism is the only option, but it is defensible. However, constant conceptual and methodological reflection is required alongside ongoing research, to keep such a view free from dogmatism and naivety (section 4). (shrink)

Philosophical approaches -- The history of the mind-body problem -- The philosophy of neuroscience -- Recent advances in functionalism I : homuncular functionalism -- Recent advances in functionalism II : teleological functionalism -- Representation and the physical basis of mental content -- Conscious and unconscious representations -- Brain dynamics, attention and movement -- Memory and perception -- The where and when of visual experience -- Multiple types of consciousness.

In the visual system, the represented features of individual objects (shape, colour, movement, and so on) are distributed both in space and time within the brain. Representations of inner and outer event sequences arrive through different sense organs at different times, and are likewise distributed. Objects are nevertheless perceived as integrated wholes - and event sequences are experienced to form a coherent "consciousness stream." In their thoughtful article, Dennett & Kinsbourne ask how this is achieved.

The question of the unity of consciousness is often treated as the question of how different conscious experiences are related to each other in order to be unified. Many contemporary views on the unity of consciousness are based on this bottom-up approach. In this paper I explore an alternative, top-down approach, according to which (to a first approximation) a subject undergoes one single conscious experience at a time. From this perspective, the problem of unity of consciousness becomes (...) rather the problem of how we can distinguish a multiplicity of goings-on within our conscious experience at any time, given that it is unique. I will present three possible top-down approaches to unity of consciousness, which I call Priority unity monism, Existence unity monism, and Brentanian unity monism. Priority monism and Existence monism are defined in analogy with the homonymous metaphysical theories of object constitution. Brentanian monism retraces Franz Brentano’s view on unity of consciousness, and is defined by appeal to some of his mereological ideas. I will argue that the latter is the best top-down approach to unity of consciousness. (shrink)

Any theoretician constructing a serious model of consciousness should carefully assess the details of empirical data generated in the neurosciences and psychology. A failure to account for those details may cast doubt on the adequacy of that model. This paper presents a case in point. Dennett and Kinsbourne's (Dennett, D., & Kinsbourne, M. (1992). Time and the observer: The where and when of consciousness in the brain. Behavioral and Brain Sciences, 15, 183-243) assault on the materialist version of (...) the Cartesian Theater model of the mind relies significantly on the superiority of their Multiple Drafts model of consciousness as an explanation of the phenomenon of metacontrast. However, their description of metacontrast is, in important ways, inadequate. The result is that their explanation of how the Multiple Drafts model handles this phenomenon fails to account for the actual data. In this paper I offer a more complete description of metacontrast, show how Dennett and Kinsbourne's explanation fails, and argue that there are good theoretical reasons for choosing the so-called Stalinesque model over the so-called Orwellian model. (shrink)

Consciousness is an active area of both philosophical debates and scientific research. Consciousness Quest, rather than covering the broad spectrum of consciousness spread over multiple scientific disciplines, refocuses the quest for consciousness on a specific area where Eastern contemplative traditions, mostly in Hindu and Buddhist theories of mind, meet Western empirical research. This book is an introduction to current scientific thinking and research on consciousness and at the same time acquaints readers with the spectrum (...) of classical and modern philosophical notions on consciousness. (shrink)

This volume of Ned Block's writings collects his papers on consciousness, functionalism, and representationism. A number of these papers treat the significance of the multiple realizability of mental states for the mind-body problem -- a theme that has concerned Block since the 1960s. One paper on this topic considers the upshot for the mind-body problem of the possibility of a robot that is functionally like us but physically different -- as is Commander Data of _Star Trek's_ second generation. (...) The papers on consciousness treat such conceptual issues as phenomenal versus access consciousness, Dennett's theory of consciousness, and the function of consciousness, as well as such empirical matters as "How Not to Find the Neural Correlate of Consciousness," and an argument that there are distinct neural correlates for access consciousness and phenomenal consciousness. Turning to the mind-body problem, Block defends physicalism against Max Black's argument concerning phenomenal modes of presentation. The papers on representationism consider "mental paint" as well as the "Inverted Earth" thought experiment -- a world in which colors are reversed but there is a compensating reversal in the words that are used to describe them. _Consciousness, Function, and Representation_, bringing together papers that have appeared primarily in journals and conference proceedings, can be regarded as Block's most complete statement of his positions on consciousness. (shrink)

It is now widely accepted that philosophers should be historically self-conscious. But what does this mean in practice? How does historical consciousness change the way we philosophize? To answer this question, I examine two philosophers who put historical consciousness at the heart of their projects: Richard Rorty and Paul Ricoeur. Rorty and Ricoeur both argue that historical consciousness leads us to see philosophy as fragmented. It leads us to view our thinking from multiple perspectives at once, (...) perspectives that are often in considerable tension. But Rorty and Ricoeur reach radically different conclusions about how we should respond to this fragmentation. Their disagreement, I argue, is closely connected to their views of identity. Rorty and Ricoeur have different understandings of what it means for something to be unified, and thus different ideas about what it would take for our perspectives on ourselves to be brought together. My argument for this claim has four parts. First, I try to identify the problems that historical consciousness raises for philosophy, and explain why the most common response to them is unsatisfactory. Second, I discuss Rorty's claim that historical consciousness ought to make us ironists about our philosophical views, and to abandon truth as a goal of inquiry. Third, I contrast Rorty's position with Ricoeur's. Ricoeur argues that we can be historically self-aware and still see philosophy as a rational enterprise that aims at truth. I argue that Ricoeur's optimism on this point is rooted in his view of identity, and specifically in his distinction between idem- and ipse-identity. Finally, I ask what all of this shows about the options available to historically minded philosophers today. (shrink)

An interactive process model of the nature of representation intrinsically accounts for multiple emergent properties of consciousness, such as being a contentful experiential flow, from a situated and embodied point of view. A crucial characteristic of this model is that content is an internally related property of interactive process, rather than an externally related property as in all other contemporary models. Externally related content requires an interpreter, yielding the familiar regress of interpreters, along with a host of additional (...) fatal problems. Further properties of consciousness, such as differentiated qualities of experience, including qualia, emerge with conscious reflection. In particular, qualia are not constituents or direct properties of consciousness per se. Assuming that they are so is a common and ultimately disastrous misconstrual of the problems of consciousness. (shrink)