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)

Subliminal perception (SP) is today considered a well-supported theory stating that perception can occur without conscious awareness and have a significant impact on later behaviour and thought. In this article, we first present and discuss different approaches to the study of SP. In doing this, we claim that most approaches are based on a dichotomic measure of awareness. Drawing upon recent advances and discussions in the study of introspection and phenomenological psychology, we argue for both the possibility and necessity of (...) using an elaborated measure of subjective states. In the second part of the article, we present findings where these considerations are implemented in an empirical study. The results and implications are discussed in detail, both with reference to SP, and in relation to the more general problem of using elaborate introspective reports as data in relation to studies of cognition. (shrink)

[opening paragraph]: In his keynote paper David Chalmers defines ‘the hard problem’ by posing certain ‘Why’ questions about consciousness? Such questions must be posed within an appropriate setting. The way of science is to try to deduce the answer to many such questions from a few well defined assumptions. Much about nature can be explained in terms of the principles of classical mechanics. The assumptions, in this explanatory scheme, are that the world is composed exclusively of particles and fields governed (...) by specified mathematical laws that refer neither to any individual person, nor to anyone’s experiences. These physical laws are supposed to be such that particles and fields, acting in concert, can form causally efficacious real functional entities such as driveshafts and propellers. Similarly, surges of electrical and mechanical activity in appropriately designed material substrates, composed of particles and fields acting in concert, could implement, in the world of matter, complex functional structures and long sequences of logical operations. Thus it is conceivable that all of our behaviour, and all of the internal processing that occurs in our bodies and brains could be deduced, at least in principle, from the principles of classical mechanics and appropriate boundary conditions. -/- Contents: 1. Introduction: Philosophical Setting 2. Quantum Model of the Mind/Brain 3. Person and Self 4. Meeting Baars's Criteria for Consciousness 5. Qualia 6. Free-Will. (shrink)

Consciousness is a mongrel concept: there are a number of very different "consciousnesses." Phenomenal consciousness is experience; the phenomenally conscious aspect of a state is what it is like to be in that state. The mark of access-consciousness, by contrast, is availability for use in reasoning and rationally guiding speech and action. These concepts are often partly or totally conflated, with bad results. This target article uses as an example a form of reasoning about a function of "consciousness" based on (...) the phenomenon of blindsight. Some information about stimuli in the blind field is represented in the brains of blindsight patients, as shown by their correct "guesses," but they cannot harness this information in the service of action, and this is said to show that a function of phenomenal consciousness is somehow to enable information represented in the brain to guide action. But stimuli in the blind field are BOTH access-unconscious and phenomenally unconscious. The fallacy is: an obvious function of the machinery of access-consciousness is illicitly transferred to phenomenal consciousness. (shrink)

The article presents a perspective on the scientific explanation of the subjectivity of conscious experience. It proposes plausible answers for two empirically valid questions: the ‘how’ question concerning the developmental mechanisms of subjectivity, and the ‘why’ question concerning its function. Biological individuation, which is acquired in several different stages, serves as a provisional description of how subjective perspectives may have evolved. To the extent that an individuated informational space seems the most efficient way for a given organism to select biologically (...) valuable information, subjectivity is deemed to constitute an adaptive response to informational overflow. One of the possible consequences of this view is that subjectivity might be (at least functionally) dissociated from consciousness, insofar as the former primarily facilitates selection, the latter action. (shrink)

Within theoretical and empirical enquiries, many different meanings associated with consciousness have appeared, leaving the term itself quite vague. This makes formulating an abstract and unifying version of the concept of consciousness – the main aim of this article –into an urgent theoretical imperative. It is argued that consciousness, characterized as dually accessible (cognized from the inside and the outside), hierarchically referential (semantically ordered), bodily determined (embedded in the working structures of an organism or conscious system), and useful in action (...) (pragmatically functional), is a graded rather than an all-or-none phenomenon. A gradational approach, however, despite its explanatory advantages, can lead to some counterintuitive consequences and theoretical problems. In most such conceptions consciousness is extended globally (attached to primitive organisms or artificial systems), but also locally (connected to certain lower-level neuronal and bodily processes). For example, according to information integration theory (as introduced recently by Tononi and Koch, 2014), even such simple artificial systems as photodiodes possess miniscule amounts of consciousness. The major challenge for this article, then, is to establish reasonable, empirically justified constraints on how extended the range of a graded consciousness could be. It is argued that conscious systems are limited globally by the ability to individuate information (where individuated information is understood as evolutionarily embedded, socially altered, and private), whereas local limitations should be determined on the basis of a hypothesis about the action-oriented nature of the processes that select states of consciousness. Using these constraints, an abstract concept of consciousness is arrived at, hopefully contributing to a more unified state of play within consciousness studies itself. (shrink)

Davis, Allen, and Newman raise significant empirical questions. I agree with Davis that the operational definition of unconsciousness is criterion-dependent, and that the criterion can be set more conservatively than I did here. Contrastive analysis would still work if we compared clearly "conscious" to "much less conscious" phenomena. I agree with Velmans and Mangan that contrastive analysis involves the subject's first-person perspective --- that is why we study consciousness, after all --- but a rigorous physicalist could equally well trace the (...) logic from behaviorally defined operations to the first-person perspective. There is no principled disconnect between these two perspectives on the evidence, and we know from almost two centuries of psychophysical research that there is rarely any mismatch in scientific practice. I am very encouraged by the ease of communication in these commentaries. Bringsjord's challenge seems to involve a difference of views on what are the most interesting questions. (shrink)

Baars affirms Crick and Koch's position that the timidity most cognitive scientists show in the face of consciousness is ridiculous. Unfortunately, all three succumb to a variation on the timidity they deprecate. Furthermore, Baars' own method, ``contrastic analysis,'' is at odds with the computational conception of mind that dominates contemporary cognitive science.

Baars contends that we must ask answerable questions about consciousness, and that to do so will require definitions of consciousness that permit "contrastive analysis". I endorse this general approach, but find several of Baars claims of processing without consciousness, unconvincing. I show that a more cautious definition of "non-conscious" than Baars' need not impede experimentation and is more likely to enjoy universal agreement.

Baars' contrastive analysis approach offers an essential framework for differentiating conscious processing from the myriad unconscious functions carried out by the mind/brain. In applying this approach it is important to understand that consciousness is not something other than, but something in addition to the unconscious processes that precede and follow the momentary focus of awareness. We have argued elsewhere that neurologically this something is activation via a global attentional matrix which both: 1) controls access to consciousness by competing unconscious processors; (...) and 2) integrates the multimodal representations of those processors which gain momentary access into unified, conscious percepts. (shrink)

The author argues that the notion of wearable technology betrays a materialistic approach to design that constrains the construction of a means to fully facilitate the functionality of technology. It is argued that by taking the view that technology can be considered an extensive form of humanity a space can be opened for designers to explore how the body can be considered an architecture for facilitating consciousness and technology a means of distributing consciousness by means of an extended body. The (...) author—by sketching out a new design territory calling into question some current approaches to usability—intends to provoke thought rather than to provide answers. (shrink)

Definitions of consciousness need to be sufficiently broad to include all examples of conscious states and sufficiently narrow to exclude entities, events and processes that are not conscious. Unfortunately, deviations from these simple principles are common in modern consciousness studies, with consequent confusion and internal division in the field. The present paper gives example of ways in which definitions of consciousness can be either too broad or too narrow. It also discusses some of the main ways in which pre-existing theoretical (...) commitments (about the nature of consciousness, mind and world) have intruded into definitions. Similar problems can arise in the way a “conscious process” is defined, potentially obscuring the way that conscious phenomenology actually relates to its neural correlates and antecedent causes in the brain, body and external world. Once a definition of “consciousness” is firmly grounded in its phenomenology, investigations of its ontology and its relationships to entities, events and processes that are not conscious can begin, and this may in time transmute the meaning (or sense) of the term. As our scientific understanding of these relationships deepen, our understanding of what consciousness is will also deepen. A similar transmutation of meaning (with growth of knowledge) occurs with basic terms in physics such as "energy", and "time.". (shrink)

Dieser Artikel befasst sich mit einigen falschen Auffassungen in Bezug auf ‘privilegierte’ Zugänge zu eigenen Erfahrungen aus der Perspektive der ersten Person, verweist auf die Grenzen solcher Unmittelbarkeit und zweifelt am solipsistischen Geheimnis der Subjektivität. Ausgehend von der Überzeugung, dass sich die Gleichstellung von ‘Blickwinkel’ und ‘Perspektive’ als problematisch erwiesen hat, stellt der Verfasser die These auf, dass wir unterschiedliche Perspektiven aus ein und demselben Blickwinkel haben können. Als gestaltgewordene, in die Umwelt eingebettete und erkenntnisfähige Personen praktizieren wir den Austausch (...) perspektivistischer Standpunkte über die eigene Subjektivität in unserem Lebensalltag leichter und öfter, als wir dies in unseren Theorien zuzugeben bereit sind. Die Art der Methodologie, zu der auch der objektivistische Zugang der dritten Person gehört, ist außerstande, die Irreduktibilität zwischen dem Subjektiven und dem Empirischen zu revidieren, setzt jedoch voraus, dass die Vernunft dem intersubjektiven Raum geöffnet ist, in dem das Irreduktible immer noch weitervermittelt, verglichen und ergänzt werden kann. (shrink)

According to Nagel, bat consciousness is "what it is like to be a bat.'' According to Baars, we will never know what it is like to be bat, so this approach to consciousness does not allow the science of consciousness to progress. Rather, the nature of consciousness as such should be determined empirically, by contrasting processes which are conscious with processes that are not conscious. The present commentary argues that contrastive analysis is appropriate for finding the processes most closely associated (...) with consciousness; but it will not illuminate the nature of consciousness as such. Unlike bat consciousness, human consciousness is accessible to humans introspectively. Consequently, a complete science of consciousness needs to relate introspective, first-person accounts of consciousness to third-person processing models of the brain. (shrink)

Music is often described in anthropomorphic terms. This paper suggests that if we think about music in certain ways we could think of it as conscious. Motional characteristics give music the impression of being alive, but musical motion is conventionally taken as metaphorical. The first part of this paper argues that metaphor may not be the exclusive means of understanding musical motion – there could also be literal ways. Discussing kinds of consciousness, particularly “access consciousness” (Block 1995), the second part (...) proposes ways in which music could (hypothetically) be conscious. The conclusion states that a greater understanding of the interactions of “phenomenal consciousness” and “access consciousness” is important in conceptualizing non-human consciousnesses, such as music might be conceived to be. (shrink)

In this paper, we address the different ways in which dream research can contribute to interdisciplinary consciousness research. As a second global state of consciousness aside from wakefulness, dreaming is an important contrast condition for theories of waking consciousness. However, programmatic suggestions for integrating dreaming into broader theories of consciousness, for instance by regarding dreams as a model system of standard or pathological wake states, have not yielded straightforward results. We review existing proposals for using dreaming as a model system, (...) taking into account concerns about the concept of modeling and the adequacy and practical feasibility of dreaming as a model system. We conclude that existing modeling approaches are premature and rely on controversial background assumptions. Instead, we suggest that contrastive analysis of dreaming and wakefulness presents a more promising strategy for integrating dreaming into a broader research context and solving many of the problems involved in the modeling approach. (shrink)

Several authors within psychology, neuroscience and philosophy take for granted that standard empirical research techniques are applicable when studying consciousness. In this article, it is discussed whether one of the key methods in cognitive neuroscience – the contrastive analysis – suffers from any serious confounding when applied to the field of consciousness studies; that is to say, if there are any systematic difficulties when studying consciousness with this method that make the results untrustworthy. Through an analysis of theoretical arguments in (...) favour of using contrastive analysis, combined with analyses of empirical findings, I conclude by arguing for three factors that currently are confounding of research using contrastive analysis. These are (1) unconscious processes, (2) introspective reports, and (3) attention. (shrink)

Behaviorism still threatens consciousness research. On the surface, Baars' "contrastive analysis" may look as if it reduces first-person consciousness to a third-person construct. But once its tacit behaviorism is isolated and overcome, contrastive analysis turns out to give empirical support to the primacy of the first-person stance for the scientific investigation of consciousness.

Both the multidimensional phenomenon and the polysemous notion of consciousness continue to prove resistant to consistent measurement and unambiguous definition. This is hardly surprising, given that there is no agreement even as regards the most fundamental issues they involve. One of the basic disagreements present in the continuing debate about consciousness pertains to its gradational nature. The general aim of this article is to show how consciousness might be graded and multidimensional at the same time. We therefore focus on the (...) question of what it is, exactly, that is or could be graded in cases of consciousness, and how we can measure it. Ultimately, four different gradable aspects of consciousness will be described: quality, abstractness, complexity and usefulness, which belong to four different dimensions, these being understood, respectively, as phenomenal, semantic, physiological, and functional. Consequently, consciousness may be said to vary with respect to phenomenal quality, semantic abstraction, physiological complexity, and functional usefulness. It is hoped that such a four-dimensional approach will help to clarify and justify claims about the hierarchical nature of consciousness. The approach also proves explanatorily advantageous, as it enables us not only to draw attention to certain new and important differences in respect of subjective measures of awareness and to justify how a given creature may be ranked higher in one dimension of consciousness and lower in terms of another, but also allows for innovative explanations of a variety of well-known phenomena (amongst these, the interpretations of blindsight and locked-in syndrome will be briefly outlined here). Moreover, a 4D framework makes possible many predictions and hypotheses that may be experimentally tested (We point out a few such possibilities pertaining to interdimensional dependencies). (shrink)

The paper deals with some misconceptions concerning ‘privileged’ access to our own experiences from the first-person perspective, points to the limitations of this immediacy, and questions the solipsist privacy of subjectivity. Based on the conviction that the identification of ‘point of view’ with ‘perspective’ proves to be problematic, the author argues that we may take different perspectives from the same point of view. As embodied and embedded cognitive persons we practice the interchange of perspectival attitudes towards our own subjectivity in (...) our daily lives far more easily and frequently than we are prone to admit in our theories. This kind of methodology, part of which is also the objectivist third-person approach, does not have the power to revise the irreducibility between the subjective and the empirical, although it does appeal to the mind open to the intersubjective space, in which the irreducible can still be communicated, compared and complemented. (shrink)

Despite the important role of the consistency concept in various theoretical frameworks of memory research and its influence on practical investigations it remains unclear as to whether consistency has been firmly grounded as a explanatory factor. Consistency does not determine either a cognitive load or the development of automaticity. However, it does explain the nature of empirical facts that are subsumed by these terms. Consistency is not a psychological factor involved in many important and highly related topics of consciousness research (...) including, implicit learning, and implicit memory. Rather it is the way human beings relate their various mental experiences. (shrink)