Qualia

Is it possible to build a conscious machine, an artifact that has qualitative experiences such as feeling pain, seeing the redness of a flower or enjoying the taste of coffee ? What makes such experiences conscious is their phenomenal character: it is like something to have such experiences. In contemporary philosophy of mind, the question of the qualitative aspect of conscious experiences is often addressed in terms of qualia. In a pre-theoretical and intuitive sense, qualia refer to the phenomenal character (...) or “what-it’s-like-ness” of a conscious experience: the painfulness of a pain experience or the redness of a visual experience of a red object. The problem of artificial qualia is the question of the theoretical possibility of the realization of qualia by artifacts. In this work, this problem will serve as a methodological tool to address what is arguably the most fundamental question of philosophy of mind: what exactly is consciousness? (shrink)

In searching for what is the most natural way to regard the world, it will be shown that existence is an interplay between meanings and contexts. This interplay takes the form of consciousness, which arises on top of an infinite ocean of formless contexts. Various aspects of meaning and context will be explored, going through the emergent structure of consciousness, self-reference, the contradictory nature of the formless realm and love as the ultimate context for existence. Given the infinite ramifications of (...) contexts being formless, only a brief introduction can ever be given. (shrink)

On Einstein's Train and the Big Bang in Fragmental Presentism, Temporal Flow Rates, Existence, Free Will, Qualia, Hard Problems, etc.

The paper argues that contemporary consciousness studies can profit from Charles S. Peirce’s philosophy of consciousness. It confronts mainstream tendencies in contemporary consciousness studies, including those which consider consciousness as an unsolvable mystery, with Peirce’s phenomenological approach to consciousness. Peirce’s answers to the following contemporary issues are presented: phenomenological consciousness and the qualia, consciousness as self-controlled agency of humans, self-control and self-reflection, consciousness and language, self-consciousness and introspection, consciousness and the other, consciousness of nonhuman animals, and the question of a (...) quasi-consciousness of the physical universe. A detailed account of Peirce’s three modes of consciousness is presented: primisense, qualisense or feeling-consciousness, altersense, and medisense, the consciousness of cognition, thought, and reasoning. In contrast to consciousness studies that establish a rather sharp dividing line between conscious and unconscious states of mind, Peirce adopts the principle of synechism, the theory of continuity. For him, consciousness is a matter of degree. An important difference between Peirce’s concept of qualia and current theories of qualia in human consciousness is discussed. The paper shows how consciousness, according to Peirce, emerges from unconscious qualia and vanishes into equally unconscious habits. It concludes with a study of the roles of qualia, habit, and self-control in Peirce’s theory of signs, in particular in qualisigns and symbols, and the question of signs as quasi-conscious agents in semiosis. (shrink)

It is often thought that sensible qualities such as colours do not exist as properties of physical objects. Focusing on the case of colour, I discuss two views: the Galilean view, according to which colours do not exist as qualities of physical objects, and the naive view, according to which colours are, as our perception presents them to be, qualities instantiated by physical objects. I argue that it is far from clear that the Galilean view is better than the naive (...) view. Given the arguments in this paper, the naive view ought to be taken seriously. The discussion here appeals especially to theorists who, like Goff, are already convinced that the quantitative language of physical science fails to capture all qualities. (shrink)

Why is there something rather than nothing? I don't know. But I give an argument that qualia exist *necessarily*. The *possibility* of the existence of red qualia requires actual red qualia to specify what the possibility is a possibility *of*.

There is a profound difference between asking a 'hard problem' and asking a 'hard problem' that has qualia in the question. There are plausible answers to the former that are nevertheless clearly not answers to the latter. I give a method by which hard problems will be able to be solved, if possible. I speculate on the (possible) causal efficaciousness of consciousness in evolution and in quantum mechanics.

Researching into our past, scientists use different methods, from looking at the night sky to digging traces of our past and analyzing DNA. I propose here another method, that can have the potential of shedding more light into our history and the type of entities that we are. Working under philosophical idealism, I propose that evolution is in the first place the evolution of consciousness, and thus the traces of evolution are mostly not to be found in our physical bodies, (...) but in our consciousnesses. I argue that qualia are selected by evolution in order to solve evolutionary problems, and thus, looking into our qualia we can learn about our evolutionary history. (shrink)

This paper develops a Fragmentalist theory of Presentism and shows how it can help to develop a interpretation of quantum mechanics. There are several fragmental interpretations of physics. In the interpretation of this paper, each quantum system forms a fragment, and fragment f1 makes a measurement on fragment f2 if and only if f2 makes a corresponding measurement on f1. The main idea is then that each fragment has its own present (or ‘now’) until a mutual quantum measurement—at which time (...) they come (‘become’) to share the same ‘now’. The theory of time developed here will make use of both McTaggart’s A-series (in the form of future-present-past) and B-series (earlier-times to later-times). An example of an application is that a Bell pair of electrons does not take on definite spin values until measurement because the measuring system and the Bell pair do not share the same present (‘now’) until mutual quantum measurement, i.e. until they ‘become’ to share the same A-series. Before that point the ‘now’ of the opposing system is not in the reference system’s fragment. Relativistic no-signaling is preserved within each fragment, which will turn out to be sufficient for the general case. Several issues in the foundations of quantum mechanics are canvassed, including Schrodinger’s cat, the Born rule, modifications to Minkowski space that accommodate both the A-series and the B-series, and entropy. (shrink)

Consumer society, by Jean Baudrillard, is a major contribution to contemporary sociology and philosophy, at the height of the Division of Labor Durkheim or The Protestant Ethic and the Ethics of Capitalism Weber.

Identifying the physiological processes in the central nervous system that underlie our conscious experiences has been at the forefront of cognitive neuroscience. While the principles of classical physics were long found to be unaccommodating for a causally effective consciousness, the inherent indeterminism of quantum physics, together with its characteristic dichotomy between quantum states and quantum observables, provides a fertile ground for the physical modeling of consciousness. Here, we utilize the Schrödinger equation, together with the Planck-Einstein relation between energy and frequency, (...) in order to determine the appropriate quantum dynamical timescale of conscious processes. Furthermore, with the help of a simple two-qubit toy model we illustrate the importance of non-zero interaction Hamiltonian for the generation of quantum entanglement and manifestation of observable correlations between different measurement outcomes. Employing a quantitative measure of entanglement based on Schmidt decomposition, we show that quantum evolution governed only by internal Hamiltonians for the individual quantum subsystems preserves quantum coherence of separable initial quantum states, but eliminates the possibility of any interaction and quantum entanglement. The presence of non-zero interaction Hamiltonian, however, allows for decoherence of the individual quantum subsystems along with their mutual interaction and quantum entanglement. The presented results show that quantum coherence of individual subsystems cannot be used for cognitive binding because it is a physical mechanism that leads to separability and non-interaction. In contrast, quantum interactions with their associated decoherence of individual subsystems are instrumental for dynamical changes in the quantum entanglement of the composite quantum state vector and manifested correlations of different observable outcomes. Thus, fast decoherence timescales could assist cognitive binding through quantum entanglement across extensive neural networks in the brain cortex. (shrink)

Is blue food desirable or disgusting? The answer, it would seem, is both, but it really depends on the food in which the color happens to be present. It turns out that the oft-cited aversive response to blue meat may not even have been scientifically validated, despite the fact that blue food coloring is often added to discombobulate diners. In the case of drinks, however, there has been a recent growth of successful new blue product launches in everything from beer (...) to tea, and from wine to gin, arguing that coloring food products blue is more than simply a contemporary fad. In fact, the current interest in blue food coloring builds on the color's earlier appearance in everything from blue curacao to blue-raspberry candyfloss, and thereafter a number of soft drinks. Over the years, the combination of blue coloring with raspberry flavoring has also appeared in everything from bubble-gum to patriotic pop rocks. Ultimately, it is the rarity of naturally-blue foods that is likely what makes this color so special. As such, blue food coloring can both work effectively to attract the visual attention of the shopper while, at the same time, being linked to a range of different flavors depending on the food format in which it happens to appear. Note also that the basic descriptor “blue” covers a wide range of hues having a range of different associations, hence eliciting different reactions. While blue was once associated with artificiality, a growing number of natural blue food colorings have come onto the market in recent years thus perhaps changing the dominant associations that many consumers may have with this most unusual of food colors. (shrink)

Abstract to Equations, Qualia, and Qualations -/- With regard to consciousness, we could write an equation B = black. But it is possible to rewrite this using a quale, namely, B = █. This latter equation might be called a ‘qualation’. It has the same meaning regardless of the physiology that apprehends it. This article argues a whole theory of qualations could be developed. Further, to a Dualist, it could be that a materialist is convinced by materialist arguments involving the (...) first equation, but it is unimaginable how this could ever be for a qualation. In view of the strong association of qualia with McTaggart’s A-series (future/present/past) a few notes on time are included. (shrink)

The contemporary debate around consciousness presents us (and often leads us to embrace) a specific current of thought: physicalism, which states that everything in our reality is physical1. In this paper I want to introduce the main points of the opposite view, dualism, according to which there are two different realms of reality: the mental and the physical one. In the introduction I give the main idea and sketch the general intuition behind dualism. In Section 1 I present substance dualism (...) and its more refined version, which is interactionism. In sub-section 1.1 I describe property dualism, which is the mainstream form of dualism adopted nowadays. In sub-sections 1.1.2 and 1.1.3 are proposed two variations of property dualism: epiphenomenalism and panpsychism. Finally, in Section 2 and its two sub-sections (2.1 and 2.2.) I recall Frank Jackson’s famous 1982 thought experiment and two classical objections to it, which are the Ability Hypothesis and the phenomenal concept strategy one. I conclude with a short reflection if we were to take under consideration the acceptance of dualism as an explanation of consciousness and its nature. PS: there's a mistake at page 12, as there's a note in the middle of the page that is not supposed to be there. (shrink)

The brain is composed of electrically excitable neuronal networks regulated by the activity of voltage-gated ion channels. Further portraying the molecular composition of the brain, however, will not reveal anything remotely reminiscent of a feeling, a sensation or a conscious experience. In classical physics, addressing the mind–brain problem is a formidable task because no physical mechanism is able to explain how the brain generates the unobservable, inner psychological world of conscious experiences and how in turn those conscious experiences steer the (...) underlying brain processes toward desired behavior. Yet, this setback does not establish that consciousness is non-physical. Modern quantum physics affirms the interplay between two types of physical entities in Hilbert space: unobservable quantum states, which are vectors describing what exists in the physical world, and quantum observables, which are operators describing what can be observed in quantum measurements. Quantum no-go theorems further provide a framework for studying quantum brain dynamics, which has to be governed by a physically admissible Hamiltonian. Comprising consciousness of unobservable quantum information integrated in quantum brain states explains the origin of the inner privacy of conscious experiences and revisits the dynamic timescale of conscious processes to picosecond conformational transitions of neural biomolecules. The observable brain is then an objective construction created from classical bits of information, which are bound by Holevo’s theorem, and obtained through the measurement of quantum brain observables. Thus, quantum information theory clarifies the distinction between the unobservable mind and the observable brain, and supports a solid physical foundation for consciousness research. (shrink)

The brain is composed of electrically excitable neuronal networks regulated by the activity of voltage-gated ion channels. Further portraying the molecular composition of the brain, however, will not reveal anything remotely reminiscent of a feeling, a sensation or a conscious experience. In classical physics, addressing the mind-brain problem is a formidable task because no physical mechanism is able to explain how the brain generates the unobservable, inner psychological world of conscious experiences and how in turn those conscious experiences steer the (...) underlying brain processes toward desired behavior. Yet, this setback does not establish that consciousness is non-physical. Modern quantum physics affirms the interplay between two types of physical entities in Hilbert space: unobservable quantum states, which are vectors describing what exists in the physical world, and quantum observables, which are operators describing what can be observed in quantum measurements. Quantum no-go theorems further provide a framework for studying quantum brain dynamics, which has to be governed by a physically admissible Hamiltonian. Comprising consciousness of unobservable quantum information integrated in quantum brain states explains the origin of the inner privacy of conscious experiences and revisits the dynamic timescale of conscious processes to picosecond conformational transitions of neural biomolecules. The observable brain is then an objective construction created from classical bits of information, which are bound by Holevo's theorem, and obtained through the measurement of quantum brain observables. Thus, quantum information theory clarifies the distinction between the unobservable mind and the observable brain, and supports a solid physical foundation for consciousness research. (shrink)

The motivation comes from the analogy (equivalence?) of the A-series to ontologically private qualia in Dualism. This leads to the proposal that two quantum systems, no matter how small, mutually observe each other when and only when they come to share the same A-series. McTaggart's A-series and B-series can be varied independently so they cannot be the same temporal variable.

Observations on qualia, death, free will, why there is something rather than nothing, and the Star Trek vs. the Star Wars debate.

We motivate and develop a new theory of time and apply it to a few thought experiments in physics.

In Consciousness and Fundamental Reality, Philip Goff argues that the case against physicalist views of consciousness turns on “Phenomenal Transparency”, roughly the thesis that phenomenal concepts reveal the essential nature of phenomenal properties. This paper considers the argument that Goff offers for Phenomenal Transparency. The key premise is that our introspective judgments about current conscious experience are “Super Justified”, in that these judgments enjoy an epistemic status comparable to that of simple mathematical judgments, and a better epistemic status than run (...) of the mill perceptual judgments. After presenting the key ideas in the “Super Justification Argument”, I distinguish two Super Justification theses, which vary according to the kind of introspective judgments that they take to be Super Justified. I argue that Goff’s case requires “Strong Super Justification”, according to which a wide range of introspective judgments about conscious experience are Super Justified. Unfortunately, it turns out that Strong Super Justification is implausible and not well-supported by examples. In contrast, a weaker Super Justification thesis does not require anything like Phenomenal Transparency and, indeed, can be explained by physicalistic accounts of phenomenal concepts. (shrink)

Many philosophers have tried to defend physicalism concerning phenomenal consciousness, by explaining dualist intuitions within a purely physicalist framework. One of the most common strategies to do so consists in interpreting the alleged “explanatory gap” between phenomenal states and physical states as resulting from a fallacy, or a cognitive illusion. In this paper, I argue that the explanatory gap does not rest on a fallacy or a cognitive illusion. This does not imply the falsity of physicalism, but it has consequences (...) on the kind of physicalism we should embrace. (shrink)

The world appears to conscious creatures in terms of experienced sensory qualities, but science doesn't find sensory experience in that world, only physical objects and properties. I argue that the failure to locate consciousness in the world is a function of our necessarily representational relation to reality as knowers: we won't discover the terms in which reality is represented by us in the world as it appears in those terms. Qualia -- arguably a type of representational content -- will therefore (...) not be found in the physical world as characterized in experience or science. Instead, consciousness constitutes a subjective, representational reality for cognitive systems such as ourselves, and the physical world is a represented objective reality. I suggest that naturalistic approaches to explaining consciousness should acknowledge the non-objectivity of experience, and be constrained by evidence that consciousness accompanies certain sorts of behaviour-controlling representational functions carried out by complex, physically instantiated mind-systems. I evaluate a variety of current hypotheses about consciousness, and suggest that a mature science of representation may help explain why, perhaps as matter of representational necessity, experience arises as a natural but not objectively discoverable phenomenon. (shrink)

This paper shows why qualia constitute a problem for any theory of mental phenomena. We use the term ‘qualia’ in reference to non-intentional features of mental states which are eminently qualitative, i.e. perceptions, emotions, moods and body sensations. These non-intentional features are usually described as intrinsic, ineffable, infallible, atomic, private, direct and irreducible to the physical. The paper also explains the absent qualia argument which is addressed as a critique to functionalism.

The meta-problem of consciousness (Chalmers, 2018) is the problem of explaining the behaviours and verbal reports that we associate with the so-called 'hard problem of consciousness'. These may include reports of puzzlement, of the attractiveness of dualism, of explanatory gaps, and the like. We present and defend a solution to the meta-problem. Our solution takes as its starting point the emerging picture of the brain as a hierarchical inference engine. We show why such a device, operating under familiar forms of (...) adaptive pressure, may come to represent some of its mid-level inferences as especially certain. These mid-level states confidently re-code raw sensory stimulation in ways that (they are able to realize) fall short of fully determining how properties and states of affairs are arranged in the distal world. This drives a wedge between experience and the world. Advanced agents then represent these mid-level inferences as irreducibly special, becoming increasingly puzzled as a result. (shrink)

David Chalmers underestimates the possibility that actually answering the 'hard question' will make both the hard problem and the meta-problem of consciousness evaporate.

Michael Tye proposed a way of understanding the content of hallucinatory experiences. Somewhat independently, Mark Johnston provided us with elements to think about the content of hallucination. In this paper, their views are compared and evaluated. Both their theories present intricate combinations of conjunctivist and disjunctivist strategies to account for perceptual content. An alternative view, which develops a radically disjunctivist account, is considered and rejected. Finally, the paper raises some metaphysical difficulties that seem to threaten any conjunctivist theory and to (...) lead the debate to a dilemma: strong disjunctivists cannot explain the subjective indistinguishability between veridical and hallucinatory experiences, whereas conjunctivists cannot explain what veridical and hallucinatory experiences have in common. This dilemma is left here as an open challenge. (shrink)

This very short paper provides a panpsychic solution to the Hard Problem of Consciousness. It was presented to the Philosophical Society of the Oxford University Department of Continuing Education (OUDCE) on 18th August 2019, and posted on Twitter (@ATBollands) on the 20th August, 2019. It solves the Hard Problem by 1) making the case for Panpsychism, and 2) solving the Combination Problem (Panpsychism's equivalent of the Hard Problem). -/- The paper aims to be clear, concise, to-the-point and accessible to the (...) general educated reader. It is short on discussion and elaboration, and does not seek to defend its argument against all reasonable objections. However, by keeping its argument to under 2 pages, it ensures the casual reader is not discouraged from taking a look, allowing them to engage with both the Hard Problem and this Short Solution. (shrink)

Mohan Matthen has failed to understand the position I develop and defend in “How to Think about Mental Content.” No doubt some of the fault lies with my exposition, though Matthen often misconstrues passages that are clear in context. He construes clarifications and elaborations of my argument to be “concessions.” Rather than dwell too much on specific misunderstandings of my explanatory project and its attendant claims, I will focus on the main points of disagreement.RepresentationalismMy project in the paper is to (...) argue for a particular construal of the role of representational content in computational models of cognition. The view is committed to two kinds of representational content—mathematical content, which characterizes the mathematical function computed by a device and subsumes both biological and artifactual computers, and cognitive content. The latter is determined in part by external, so-called ‘naturalistic’ factors (for example, visual mechanisms represent such distal pro. (shrink)

Consciousness is arguably the greatest mystery in science, still being unsolved after millennia of thinking. This book is one further attempt at trying to bring new insights regarding consciousness. While certainly the mystery will continue, the ideas in this book will raise awareness regarding an aspect of the phenomenology of consciousness that has been overlooked by past thinkers, and that is the emergent structure of consciousness, which in the end will be shown to be realized by the nature of self-reference (...) of looking-back-at-itself. The great take-away from appreciating the true nature of self-refence would be the need to switch to an unformal way of thinking in doing science if the problem of consciousness is to be resolved. To unformal way of thinking means abandoning the desire to have clearly defined entities in our theories, like “energy” or “space-time” or “spin”, and instead allow for entities that cannot be formalized, to be responsible for the workings of the world. We will slowly see as the book unfolds why the need for unformal way of thinking arises. -/- Regarding the presentation style, the book is both a popular book and a rigorous presentation that goes into thorough phenomenological analyses of consciousness. The reason is that our lives themselves are both familiar and the very nature of existence. As opposed to other writings that use a more technical approach, the philosophy of this book is that a theory of consciousness should focus more on the most mundane manifestations of consciousness, like the redness of an apple or the warmish feeling of cup of hot chocolate, in order to give a clearer understanding of consciousness. Therefore, the book is full of everyday examples of conscious experiences that the reader can relate to and use them to gain deeper insights into the workings of consciousness. In the same way that LHC is the laboratory of physicists, introspection is our own laboratory, the advantage of introspection over LHC being that it is accessible to anyone. Every person can gain a deep knowledge of consciousness by simply paying close attention to his own experiences. Of course, the difficulty arises because of the huge diversity of our experiences and this might raise an apparent initial obstacle of where one is to begin his understanding of consciousness. The book is designed as a guide through the complexities of everyday experiences in the direction of sorting them out in general and clear ways of thinking, showing that consciousness needs not be something that difficult to understand if only the proper attention is given to our experiences. -/- Therefore, the book starts with a chapter about qualia, where through many examples it is shown to be a form of meaning. Then the reader is familiarized with the Self through simple thought experiments that lead to the conclusion of the unicity of the Self, and then a further logical analysis that shows the eternal existence of the Self. After these initial familiarizations with consciousness, the book goes into its core subject, that being the emergent phenomenology, in which it will be shown how consciousness is structured on a holarchy of levels and how ultimately this structuring is a result of self-reference looking-back-at-itself, consciousness being shown to be possible only because of the unformalizable nature of self-reference. (shrink)

Illusionism about phenomenal consciousness is the thesis that phenomenal consciousness does not exist, even though it seems to exist. This thesis is widely judged to be uniquely counterintuitive: the idea that consciousness is an illusion strikes most people as absurd, and seems almost impossible to contemplate in earnest. Defenders of illusionism should be able to explain the apparent absurdity of their own thesis, within their own framework. However, this is no trivial task: arguably, none of the illusionist theories currently on (...) the market is able to do this. I present a new theory of phenomenal introspection and argue that it might deal with the task at hand. (shrink)

In this paper, I present the enactive theory of color that implies a form of color relationism. I argue that this view constitutes a better alternative to color subjectivism and color objectivism. I liken the enactive view to Husserl’s phenomenology of perception, arguing that both deconstruct the clear duality of subject and object, which is at the basis of the other theories of color, in order to claim the co-constitution of subject and object in the process of experience. I also (...) extend the enactive and phenomenological account of color to the more general topic of the epistemological and ontological status of sensory qualities (qualia), outlining the fields of enactive phenomenology and enactive ontology. (shrink)

[What It’s Like, or What It’s About? The Place of Consciousness in the Material World] Summary: The book is both a survey of the contemporary debate and a defense of a distinctive position. Most philosophers nowadays assume that the focus of the philosophy of consciousness, its shared explanandum, is a certain property of experience variously called “phenomenal character,” “qualitative character,” “qualia” or “phenomenology,” understood in terms of what it is like to undergo the experience in question. Consciousness as defined in (...) terms of its phenomenal aspect is often called “phenomenal consciousness.” The major issue that occupies most thinkers is whether this phenomenal character happens to be a physical property, or whether it is rather sui generis. Those who believe the former are materialists; those who conclude the latter are dualists. As the currently dominant metaphysic is materialism – also sometimes called physicalism – the challenge appears to be to slot phenomenal properties among the physical properties that ultimately make up the world. David Chalmers argued powerfully that we can go very far in situating many mental properties in the physical world – namely, the properties that can be understood in functional terms – but that phenomenal properties resist such a treatment. Chalmers calls this “the hard problem” of consciousness. But there are also some quite powerful positive arguments for dualism. The two most influential ones are the modal argument, also offered by Chalmers, and the knowledge argument invented by Frank Jackson. Chalmers invites us to conceive of creatures that are exactly like human beings – physically, functionally, behaviorally – only bereft of phenomenal consciousness. If such creatures are conceivable, says Chalmers, they are metaphysically possible. And if they are metaphysically possible, materialism is false. Jackson, for his part, suggests we imagine Mary who has spent her entire life inside a black-and-white room and has seen the world through a black-and-white TV screen. But she also happens to know everything there is to know about the physics of color. And yet, Jackson suggests that once Mary is finally released from her room and sees a lawn outside, she learns something new: that this is what it is like to experience green color. The current work on consciousness is by and large characterized by attempts to answer these two dualistic arguments. I try to make sense of the positions within the domain of philosophy of consciousness by means of two major distinctions that mutually intersect. First, there is a distinction between dualism and materialism. An apparent third alternative currently on offer, the so-called Russellian monism, is unstable, collapsing into either dualism (panpsychism) or materialism (Russellian physicalism). Materialism comes in two main flavors: either the a posteriori physicalism, which detects an epistemic gap between phenomenal and physical truths, hence denying that the former could be derived from the latter; or the a priori physicalism, which does not acknowledge any such obstacle. The second major distinction is between phenomenism and representationalism. It’s true that Ned Block, who introduced this contrast, meant to distinguish between two kinds of materialism. But I believe that the distinction actually intersects the one between materialism and dualism. We thus arrive at a table with six slots, representing six main positions in the philosophy of consciousness: (1) dualist phenomenism (Chalmers, the early Jackson, and Tyler Burge); (2) dualist representationalism (René Descartes); (3) aposteriori materialist phenomenism (Block); (4) a posteriori materialist representationalism (Michael Tye, Fred Dretske, David Rosenthal); (5) a priori materialist phenomenism (David Lewis); and (6) a priori materialist representationalism (Daniel Dennett, Derk Pereboom). However, this scheme is in fact somewhat misleading. It is true that Dennett is usually classified as an apriori materialist (or, more precisely an apriori materialist representationalist), but I believe that needs to be corrected. In order to understand why, I first analyze varieties of materialist representationalism in detail, in particular various construals of phenomenal character in terms of representation, or intentionality, which includes a discussion of the identity of its content (the issue of externalism). By contrast, Dennett rejects the concept of phenomenal character. Consciousness has no intrinsic, publicly inaccessible properties. On that ground, Dennett builds an empirical, fully functionalist theory of consciousness, which he also tries to integrate within a general Darwinian framework. From that point of view, one can contrast Dennettian and representationalist views on the issue of animal consciousness. In addition to his rejection of phenomenal character, Dennett also abstains from the regular metaphysical departure point of regular materialism. He does not so much ask how an enigmatic property of consciousness fits an antecedently characterized world, but rather how far we can investigate all aspects of the world, including consciousness, using the scientific method. He is thus a methodological naturalist, rather than a metaphysical materialist. While this approach removes obstacles to the science of consciousness, it does not solve what might be called “the hardest problem” – of intentionality, not phenomenal consciousness. The hardest problem consists in the fact that our intentional discourse involves conflicting commitments that prevent a coherent metaphysic of representational states. However, it does not follow that we should give up on this discourse as a theoretical means of reduction as well as a practical tool of explanation. But it might be that intentional discourse is a somewhat pseudo one. (shrink)

It is often thought that consciousness has a qualitative dimension that cannot be tracked by science. Recently, however, some philosophers have argued that this worry stems not from an elusive feature of the mind, but from the special nature of the concepts used to describe conscious states. Marc Champagne draws on the neglected branch of philosophy of signs or semiotics to develop a new take on this strategy. The term “semiotics” was introduced by John Locke in the modern period – (...) its etymology is ancient Greek, and its theoretical underpinnings are medieval. Charles Sanders Peirce made major advances in semiotics, so he can act as a pipeline for these forgotten ideas. Most philosophers know Peirce as the founder of American pragmatism, but few know that he also coined the term “qualia,” which is meant to capture the intrinsic feel of an experience. Since pragmatic verification and qualia are now seen as conflicting commitments, Champagne endeavors to understand how Peirce could (or thought he could) have it both ways. The key, he suggests, is to understand how humans can insert distinctions between features that are always bound. Recent attempts to take qualities seriously have resulted in versions of panpsychism, but Champagne outlines a more plausible way to achieve this. So, while semiotics has until now been the least known branch of philosophy ending in –ics, his book shows how a better understanding of that branch can move one of the liveliest debates in philosophy forward. (shrink)

Quality-space theory (QST) explains the nature of the mental qualities distinctive of perceptual states by appeal to their role in perceiving. QST is typically described in terms of the mental qualities that pertain to color. Here we apply QST to the olfactory modalities. Olfaction is in various respects more complex than vision, and so provides a useful test case for QST. To determine whether QST can deal with the challenges olfaction presents, we show how a quality space (QS) could be (...) constructed relying on olfactory perceptible properties and the olfactory mental qualities then defined by appeal to that QS of olfactory perceptible properties. We also consider how to delimit the olfactory QS from other modalities. We further apply QST to the role that experience plays in refining our olfactory discriminative abilities and the occurrence of olfactory mental qualities in non-conscious olfactory states. QST is shown to be fully applicable to and useful for understanding the complex domain of olfaction. (shrink)

One of the leading concerns animating current philosophy of mind is that, no matter how good a scientific account is, it will leave out what its like to be conscious. The challenge has thus been to study or at least explain away that qualitative dimension. Pursuant with that aim, I investigate how philosophy of signs in the Peircean tradition can positively reshape ongoing debates. Specifically, I think the account of iconic or similarity-based reference we find in semiotic theory offers a (...) more promising variant of the phenomenal concept strategy. Philosophers who endorse this strategy think that the difficulties we have fitting conscious qualia into a scientific picture may owe to the peculiar nature of indexical concepts. They point to the fact that, when we try to convey the feel of our experiences, we employ context-dependent gestures and/or utterances that are indexed to perspectives unique to each person. However, according to the theory I defend, there are three ways signs can refer, namely by convention, causal contact, and similarity. Since similarity is not reducible to proximity, I argue that a theory of reference that turns on shared quality can bypass some of the implausible consequences that plague indexical accounts. In the first chapter, I describe the apparatus needed to make sense of this claim. In the second chapter, I present my account of iconic reference. In the third chapter, I justify my reliance on a distinction that is less than real yet more than nominal. In the fourth chapter, I sketch a trinitarian metaphysics well-suited to house the foregoing account of qualia. (shrink)

The main goal of the paper is to present a putative role of consciousness in language capacity. The paper contrasts the two approaches characteristic for cognitive semiotics and cognitive science. Language is treated as a mental phenomenon and a cognitive faculty. The analysis of language activity is based on the Chalmers’ distinction between the two forms of consciousness: phenomenal and psychological. The approach is seen as an alternative to phenomenological analyses typical for cognitive semiotics. Further, a cognitive model of the (...) language faculty is described. The model is implemented in SNePS/GLAIR architecture and based on GATN grammar and semantic networks as a representation formalism. The model - reflecting traditionally distinguished linguistic structures - consists of phonological, syntactic, and semantic modules. I claim that the most important role in the phenomenon of language is played by psychological consciousness. Phenomenal consciousness accompanies various stages of language functioning, but is not indispensable in explanations of the language faculty. (shrink)

Philip Pettit has advocated a “looks as powers” theory as an alternative to theories that rely on instances of qualia in their account of looking red. Andy Clark has offered a similar view. If these accounts are successful, the Hard Problem is moribund. This paper asks how red comes into cases of something’s looking red to someone. A likely suggestion leads to a conundrum for LAPT: the physical complexity that it attributes to the property red is not evident in experience, (...) yet the view requires manifestness of that very property. Attempts to avoid this difficulty only lead to other problems. LAPT thus fails to provide a solution to the HP. (shrink)

The following is an imaginary conversation on the ever elusive qualia, or the ‘what is it like’ feeling, or conscious experiences, that has left philosophers and cognitive scientists searching for answers. This article is meant to give the beginning reader an overall view of this phenomena. Qualia is the technical name for conscious experiences like seeing the colour red or listening to Handel's Messiah. The problem is that these conscious experiences are apparently nowhere to be found in our physical brains. (...) Thus, it would not register on any physical system in the known world. (shrink)

The debate concerning the reality of qualia has stagnated. The dominant functionalist approach to qualia concentrates largely on the filter-strategy as applied to color experiences. The filter-strategy takes color experiences as material-to-be-functionally-filtered under the assumption that qualia as such cannot be filtered. However, despite the speculative efforts made in this direction, the debate between phenomenalists and representationalists remains unresolved. The main idea of this paper is to show that the lack of success settling “the qualia war” has to be understood (...) as a result of the mischaracterization of colors as a material-to-be-functionally-filtered. (shrink)

In Scientific Realism and the Plasticity of Mind, Paul Churchland defends semantic holism through a series of arguments and thought-experiments with which he seeks to prove that the intrinsic qualitative identity of sensation or qualia, have no semantic significance at all. He argues that the meaning of terms used to describe sensations is not related to the sensation itself, but that the network of sentences in which they are contained is what determines their position in semantic space. The thought-experiments with (...) which he seeks to develop his thesis are based on a series of both linguistic and epistemic assumptions which we argue need to be questioned. In developing Churchland’s thought-experiment we reject his claim the qualia has nothing to do with the semantic of sense terms. (shrink)

Representational theories of mind cannot individuate the sense modalities in a principled manner. According to representationalism, the phenomenal character of experiences is determined by their contents. The usual objection is that inverted qualia are possible, so the phenomenal character of experiences may vary independently of their contents. But the objection is inconclusive. It raises difficult questions about the metaphysics of secondary qualities and it is difficult to see whether or not inverted qualia are possible. This paper proposes an alternative test (...) of representationalism. Do experiences in different sense modalities have the same phenomenal character when they share content? Psychological work on the perception of shape through vision and spatial hearing is discussed. This work shows that visual and auditory experiences differ in phenomenal character even in so far as they represent similar properties. This objection to representationalism does not invite questions about secondary qualities or depend on establishing metaphysical possibilities. (shrink)

It is the business of philosophy to deal without presupposition with the question of the general nature of the world and with the question of how or indeed whether we can know that nature. These are questions to which answers are given in the realism of ordinary belief, as it can be called, the phenomenalism of Berkeley, the pragmatism and the scientism of Quine, and the varieties of scepticism. The ontological and the epistemological questions are bound up with another, that (...) of the nature of perception—the question of what it is, in general, that happens when we perceive. What is called naive realism is an answer, as are representation theories, and phenomenalism again. If the question might be better defined, so as to distinguish it from the related scientific question, it is no matter of mere conceptual analysis. Let us start with this question of the nature of perception. (shrink)

I have argued elsewhere that non-sentential representations that are the close kin of scale models can be, and often are, realized by computational processes. I will attempt here to weaken any resistance to this claim that happens to issue from those who favor an across-the-board computational theory of cognitive activity. I will argue that embracing the idea that certain computers harbor nonsentential models gives proponents of the computational theory of cognition the means to resolve the conspicuous disconnect between the sentential (...) character of the data structures they posit and the nonsentential qualitative character of our perceptual experiences of corporeal (i.e., spatial, kinematic, and dynamic) properties. Along the way, I will question the viability of some externalist remedies for this disconnect, and I will explain why the computational theory put forward here falls quite clearly beyond the useful bounds of the Chinese-Room argument. (shrink)