Biological Theories of Consciousness

We suggest that there is confusion between why consciousness developed and what additional functions, through continued evolution, it has co-opted. Consider episodic memory. If we believe that episodic memory evolved solely to accurately represent past events, it seems like a terrible system—prone to forgetting and false memories. However, if we believe that episodic memory developed to flexibly and creatively combine and rearrange memories of prior events in order to plan for the future, then it is quite a good system. We (...) argue that consciousness originally developed as part of the episodic memory system—quite likely the part needed to accomplish that flexible recombining of information. We posit further that consciousness was subsequently co-opted to produce other functions that are not directly relevant to memory per se, such as problem-solving, abstract thinking, and language. We suggest that this theory is compatible with many phenomena, such as the slow speed and the after-the-fact order of consciousness, that cannot be explained well by other theories. We believe that our theory may have profound implications for understanding intentional action and consciousness in general. Moreover, we suggest that episodic memory and its associated memory systems of sensory, working, and semantic memory as a whole ought to be considered together as the conscious memory system in that they, together, give rise to the phenomenon of consciousness. Lastly, we suggest that the cerebral cortex is the part of the brain that makes consciousness possible, and that every cortical region contributes to this conscious memory system. (shrink)

Whole Brain Emulation has been championed as the most promising, well-defined route to achieving both human-level artificial intelligence and superintelligence. It has even been touted as a viable route to achieving immortality through brain uploading. WBE is not a fringe theory: the doctrine of Computationalism in philosophy of mind lends credence to the in-principle feasibility of the idea, and the standing of the Human Connectome Project makes it appear to be feasible in practice. Computationalism is a popular, independently plausible theory, (...) and Connectomics a well-funded empirical research program, so optimism about WBE is understandable. However, this optimism may be misplaced. This article argues that WBE is, at best, no more compelling than any of the other far-flung routes to achieving superintelligence. Similarly skeptical conclusions are found regarding immortality. The essay concludes with some positive considerations in favor of the Biological Theory of consciousness, as well as morals about the limits of Computationalism in both artificial intelligence and the philosophy of mind more generally. (shrink)

Some proponents of the Integrated Information Theory of consciousness profess strong views on the Neural Correlates of Consciousness, namely that large swathes of the neocortex, the cerebellum, at least some sensory cortices, and the so-called limbic system are all not essential for any form of conscious experiences. We argue that this connection is not incidental. Conflation between strong and weak versions of the theory has led these researchers to adopt definitions of NCC that are inconsistent with their own previous definitions, (...) inadvertently betraying the promises of an otherwise fruitful empirical endeavour. (shrink)

To explain the origin of anything, we must be clear about that which we are explaining. There seem to be two main meanings for the term consciousness. One might be called open in that it equates consciousness with awareness and experience and considers rudimentary sensations to have evolved at a specific point in the evolution of increasing complexity. But certainly the foundation for such sensation is a physical body. It is unclear, however, exactly what the physical requirements are for a (...) “central experiencer” to emerge in the course of evolution. Some suggest that it would require a basic brain, others a central nervous system, and others stipulate only a cellular membrane. The open definition is most often assumed by the so-called hard sciences. -/- The closed meaning of consciousness differentiates between a special sort of experience, i.e., conscious experience, and a special sort of awareness (i.e., self-awareness). This is the approach of psychoanalysis and psychology that accepts the existence of an unconscious mind. It is also the view of most phenomenological philosophers and psychologists (Martin Heidegger, Maurice Merleau-Ponty, Jacques Lacan, etc.). This entry discusses several scientific and philosophical views of consciousness and its origins. (shrink)

In the pre-postmodern era, subtitles were truly and merely “sub” and were reserved for books. They served to characterize and categorize a book so as to let the innocent consumer know what he was getting into if he could not tell from the title proper; thus, Individuals: An Essay in Descriptive Metaphysics or Intentionality: An Essay in the Philosophy of Mind. But the proper subtitle has evolved into an entire second title, is routinely used for journal articles and conference presentations, (...) and not every author can stop herself at merely the second title. The new style subtitle—the second title—is still supposed to shed light on the first title, but not by way of a categorizing characterization the way old style subtitles did. The first title of John Searle’s latest book is Mind, Language and Society. The second title is Philosophy in the Real World. It is not immediately clear what this new style subtitle means. It is too subtile. It needs an old-style subtitle to shed light on it that it may shed light on the first title. And, in his introduction, Searle very nearly supplies such. (shrink)

Le débat sur les relations esprit–cerveau a été centré sur des questions relatives au libre arbitre. J’examine ce débat et conclus que les neurosciences n’ont pas de raisons méthodologiques, ontologiques ou théoriques convaincantes, pas plus que de raisons empiriques, pour rejeter la notion de libre arbitre. Parallèlement, je reconnais que la question est très controversée, à la fois en science et dans la société. Le problème se situe dans l’incompatibilité entre notions scientifiques du cerveau et notions pré-scientifiques de l’esprit. Par (...) conséquent, je propose d’envisager les relations esprit–cerveau sur une base empirique plus profonde et incontestée que l’on peut trouver dans la psychophysique. Je discute deux cas dans lesquels le contenu d’une expérience psychophysique, et sa dynamique, correspondent à la dynamique cérébrale. Dans un cas, la correspondance est une identité de type; dans l’autre, il s’agit d’une instanciation multiple : plusieurs types radicalement différents d’activités donnent lieu à la même dynamique perceptive. Ces deux exemples illustrent que, bien que l’identité des types soit possible, elle peut être souvent hautement contextualisée. Par conséquent, on doit appréhender les relations esprit–cerveau une par une plutôt que les fonder d’un seul bloc. (shrink)

How did the human brain evolve so that consciousness of art could develop? In The Psychology of Art and the Evolution of the Conscious Brain, Robert Solso describes how a consciousness that evolved for other purposes perceives and creates art.Drawing on his earlier book Cognition and the Visual Arts and ten years of new findings in cognitive research, Solso shows that consciousness developed gradually, with distinct components that evolved over time. One of these components is an adaptive consciousness that includes (...) the ability to imagine objects that are not present--an ability that allows us to create visual art.Solso describes the neurological, perceptual, and cognitive sequence that occurs when we view art, and the often inexpressible effect that a work of art has on us. He shows that there are two aspects to viewing art: nativistic perception--the synchronicity of eye and brain that transforms electromagnetic energy into neuro-chemical codes--which is "hard-wired" into the sensory-cognitive system; and directed perception, which incorporates personal history and knowledge--the entire set of our expectations and past experiences. Both forms of perception are part of the appreciation of art, and both are products of the evolution of the conscious brain over hundreds of thousands of years.Solso also investigates the related issues of neurological and artistic perception of the human face, the effects of visual illusions, and the use of perspective. The many works of art used as examples are drawn from a wide range of artistic traditions, from ancient Egypt to Africa and India and the European Renaissance. (shrink)

In the past, philosophers, scientists, and even the general opinion, had no problem in accepting the existence of consciousness in the same way as the existence of the physical world. After the advent of Newtonian mechanics, science embraced a complete materialistic conception about reality. Scientists started proposing hypotheses like abiogenesis (origin of first life from accumulation of atoms and molecules) and the Big Bang theory (the explosion theory for explaining the origin of universe). How the universe came to be what (...) it is now is a key philosophical question. The hypothesis that it came from Nothing (as proposed by Stephen Hawking, among others), proves to be dissembling, since the quantum vacuum can hardly be considered a void. In modern science, it is generally assumed that matter existed before the universe came to be. Modern science hypothesizes that the manifestation of life on Earth is nothing but a mere increment in the complexity of matter — and hence is an outcome of evolution of matter (chemical evolution) following the Big Bang. After the manifestation of life, modern science believed that chemical evolution transformed itself into biological evolution, which then had caused the entire biodiversity on our planet. The ontological view of the organism as a complex machine presumes life as just a chance occurrence, without any inner purpose. This approach in science leaves no room for the subjective aspect of consciousness in its attempt to know the world as the relationships among forces, atoms, and molecules. On the other hand, the Vedāntic view states that the origin of everything material and nonmaterial is sentient and absolute (unconditioned). Thus, sentient life is primitive and reproductive of itself – omne vivum ex vivo – life comes from life. This is the scientifically verified law of experience. Life is essentially cognitive and conscious. And, consciousness, which is fundamental, manifests itself in the gradational forms of all sentient and insentient nature. In contrast to the idea of objective evolution of bodies, as envisioned by Darwin and followers, Vedānta advocates the idea of subjective evolution of consciousness as the developing principle of the world. In this paper, an attempt has been made to highlight a few relevant developments supporting a sentient view of life in scientific research, which has caused a paradigm shift in our understanding of life and its origin. (shrink)

The paper argues that empirical work on Buddhist meditation has an impact on Buddhist epistemology, in particular their account of unity of consciousness. I explain the Buddhist account of unity of consciousness and show how it relates to contemporary philosophical accounts of unity of consciousness. The contemporary accounts of unity of consciousness are closely integrated with the discussion of neural correlates of consciousness. The conclusion of the paper suggests a new direction in the search for neural correlates of state consciousness (...) or creature consciousness. (shrink)

This dissertation addresses the need for a body of human communication theory that can be useful toward advancing personal and social transformation. Of the humanistic genre, it suggests that there is a need to promote humanism, healing, and personal transformation in the non-clinical settings of everyday living. Three questions guide the effort. First, it asks: what kind of human communication theory might describe some of the underlying dynamics of human interaction, while also suggesting ways to improve the quality of interactions (...) among human beings? Next, it asks: how might the metaphysical abstractions of any related philosophical theory be grounded by some scientific discipline? Then finally, it asks: how might these proposed concepts be captured in a manner that can be useful to human beings in everyday human interaction? ;Extending the work of modern physics to the realm of human communication, the theory integrates conceptual aspects of quantum theory, relativity theory, communication accommodation theory, and various nonverbal communication theory. Then, it proposes the philosophical framework for a new body of theory which it calls the energy-exchange theory of human communication. Treating human beings as living forms of matter, it suggests that "energy" is the life-force that sustains all human beings, and that "consciousness" is that qualitative level of development at which energy manifests itself in the human experience. It proposes that human beings have the capacity to exchange energy and influence consciousness during the human communication process, and that these interactions can advance humanism, healing, and transformation---which it proposes are the higher states and levels of human consciousness. ;Thus, this research effort sought to know and to describe a phenomenon that is the interactive human being; and to suggest useful ways that this volitional being can know and transform itself through human interaction. ;With verisimilitude as a driving factor in describing human beings as communicators, the research is ontology-centered. It suggests that human beings are most notably creatures of feeling and soul, and that it is through interaction involving these dimensions that one can best come to know the human being. Accordingly, the research employs a hermeneutic phenomenological approach toward participative inquiry and experiential knowing. ;With practicality as a driving factor in suggesting ways that the human phenomenon can know and transform itself, this work utilizes a pragmatic approach to theory-building. Pragmatism suggests that all theories are approximations that ultimately should be judged on their abilities to truthfully describe phenomena and to solve human problems. Thus, having undergone an inductive progression from data to theory-building, now this work must go from theory to data, such that next steps should involve formal assessment of its verisimilitude and pragmatism based on feedback gained through field research on various persons who may apply the theory and its model to everyday living. (shrink)

This dissertation is a heuristic and hermeneutic research paper on the evolution of consciousness and the individuation process. I begin by examining the question of the evolution of consciousness and its significance regarding individuation in the work of four different authors: Jung, Neumann, Sri Aurobindo, and Gebser. I then study the nature of the development of the Western mind since the period of the Greek philosophers up to postmodernism and beyond. Finally, I discuss the meaning of the individuation process. ;All (...) four of the authorities referred to on the evolution of consciousness emphasize the need to integrate life around the Self. From the point of view of this study, each brings forward different factors that help one appreciate how consciousness has evolved and how the individuation process can be fostered. An instructive aspect of Neumann's theory is the underlying error in his thinking involving his depiction of the evolution of consciousness as a direct, linear development from matriarchy to patriarchy. Both Sri Aurobindo and Jung saw it as a spiral-like process. The former also describes several different cultural attitudes, each of which can contribute to the realization of an integral consciousness. According to Gebser, the new integral awareness includes the integration of subjectively experienced time, a life of felt-intensity and the concrete realization of spiritual energy in life. ;Regarding the development of the Western mind, not only has there been a widening separation between the spirit and instincts over time, but the intellect has gradually descended from the realm of ideas to the physical universe. This has led to the modern mind and its offshoot, postmodernism. Jung takes us beyond both tendencies, while reconciling the split in the Western psyche. His psychology involves both following a superior will and the in-depth transformation of the chthonic feminine and realization of the chthonic spirit. I support Jung's view with the one held by Sri Aurobindo and his spiritual collaborator, the Mother, contrasting it with views held by Hillman, Ponce, and Fromm. (shrink)

To most people it seems obvious that there are major mental differences between ourselves and other species, but there is considerable debate over exactly how special our minds are, in what respects, and which were the critical evolutionary events that have shaped us. Some researchers claimlanguage as a solely human, even defining, attribute, while others claim that only humans are truly conscious. These questions have been explored mainly by archaeologists and anthropologists until recently, but this volume aims to show what (...) psychologists have to say on the evolution of mind. The book begins with a thorough overview of what is known of the non-primate mind and its evolution. Following this, an international range of experts discuss in temporal sequence the human mind at various stages of evolution, beginning with the pre-hominids of 20 million years ago and ending withcontemporary human behaviour. Accessible to students and researchers alike in psychology, anthropology, evolution, archaeology, and ethology, The Descent of Mind provides a range of provocative answers to the timeless question of what it means to be human. (shrink)

John R. Searle’s 1995 publication The Construction of Social Reality is the foundation of this collection of scholarly papers examining Searle's philosophical theories. Searle’s book sets out to reconstruct the ontology of the social sciences through an analysis of linguistic practices in the context of his celebrated work on intentionality. His book provided a stimulating account of institutional facts such as money and marriage and how they are created and replicated in everyday social life. The authors in this collection provide (...) a critical appraisal of these and other ideas presented in Searle’s original publication. The editors' introduction clearly outlines the main issues in the debate and provides a useful introduction to Searle's contributions to social science. (shrink)

Nine lead papers, all with two or three commentators, and six with replies to the commentators. It is the Identity theorists cum cybernetician versus the "non-Cartesian dualists" and C. D. Broad-style interactionists. The most sparks are generated with MacKay's paper, "From Mechanism to Mind," and the ensuing exchange between MacKay and Beloff; MacKay's paper is intended as a summary of his work in cybernetics as it relates to the philosophy of mind, and Beloff's criticisms range from the cautious to the (...) devastating. Beloff's own paper is a well-ordered, rear-guard action against the Identity theory, which fastens on the dual nature of consciousness and para-psychological phenomena as the theory's present obstacles. Flew's "A Rational Animal" is an incisive challenging of what he dubs the "Co-existence Thesis," i.e., the view defended by such people as Winch and MacIntyre, that explanations by reasons and explanations by causes, or, in another idiom, teleological and mechanical explanations, can exist together in irreducible harmony—even given the ideal of a unified science. It should be mentioned that Price's paper is the bulk of his 1952 lecture before the Members of the Society for Psychical Research, "Survival and the Idea of 'Another World.'"—E. A. R. (shrink)

Scientific studies have shown that non-conscious stimuli and représentations influence information processing during conscious experience. In the light of such evidence, questions about potential functional links between non-conscious brain representations and conscious experience arise. This article discusses models capable of explaining how statistical learning mechanisms in dedicated resonant circuits could generate specific temporal activity traces of non-conscious representations in the brain. How reentrant signaling, top-down matching, and statistical coincidence of such activity traces may lead to the progressive consolidation of neural (...) signatures of conscious experience in networks extending across large distances beyond functionally specialized brain regions is then explained. (shrink)

The ArgumentEuropean ethology and North American comparative psychology have been the two most prominent approaches to the study of animal behavior through most of the twentieth century. In this paper I analyze sets of popular articles by ethologist Nikolaas Tinbergen and psychologist Frank Beach, in an effort to understand the contrasting rhetorical styles of the two. Among the numerous ways in which Tinbergen and Beach differed were with respect to expressing the joy of research, the kind of scientific approach adopted, (...) their treatment of animals, their sense of history, and the types of illustrations they chose. In general, Tinbergen‘s articles placed him closer to nature and Beach‘s more in the tradition of dispassionate scientific inquiry. These differences in rhetoric may have been one factor in the greater success of ethology after World War II. (shrink)

With the expansion of consciousness comes new ways of seeing reality. The hypercontextual pretexts, contexts and subtexts created by the new technologies of virtual, immersive and cyber realities create boundaryless experiences that are analogous to the archaic techniques evolved through shamanic journeys designed to transcend all human boundaries. The magico-spiritual imagination, far from disappearing in our supposedly secular age, continues to feed the utopian dreams, apocalyptic visions, digital phantasms, and alien obsessions that populate today’s ‘technological unconscious’. The language and ideas (...) of the information society have slipped into and even transformed the myriad worlds of contemporary spirituality. What is emerging is a networked framework for grappling with some of the impulses that are currently tearing us apart: spirit and the machine, modernity and nihilism, technology and the human. ‘We find ourselves trapped on a cyborg sandbank, caught between the old, smouldering campfire stories and the new networks of programming and control’ (Davis 1998: 131). We are ‘beached’ between the archaic sea of our magico-spiritual ancestors, freshly emerged from our proto-modern past, and spawned into the postmodern reality of fragmented selves, networked options, downloadable digitized consumerware and ‘technologies of ecstacy’. (shrink)