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The Conscious Mind: In Search of a Fundamental Theory (Philosophy of Mind) Revised ed. Edition
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Writing in a rigorous, thought-provoking style, the author takes us on a far-reaching tour through the philosophical ramifications of consciousness. Chalmers convincingly reveals how contemporary cognitive science and neurobiology have failed to explain how and why mental events emerge from physiological occurrences in the brain. He proposes instead that conscious experience must be understood in an entirely new light--as an irreducible entity (similar to such physical properties as time, mass, and space) that exists at a fundamental level and cannot be understood as the sum of its parts. And after suggesting some intriguing possibilities about the structure and laws of conscious experience, he details how his unique reinterpretation of the mind could be the focus of a new science. Throughout the book, Chalmers provides fascinating thought experiments that trenchantly illustrate his ideas. For example, in exploring the notion that consciousness could be experienced by machines as well as humans, Chalmers asks us to imagine a thinking brain in which neurons are slowly replaced by silicon chips that precisely duplicate their functions--as the neurons are replaced, will consciousness gradually fade away? The book also features thoughtful discussions of how the author's theories might be practically applied to subjects as diverse as artificial intelligence and the interpretation of quantum mechanics.
All of us have pondered the nature and meaning of consciousness. Engaging and penetrating, The Conscious Mind adds a fresh new perspective to the subject that is sure to spark debate about our understanding of the mind for years to come.
- ISBN-100195117891
- ISBN-13978-0195117899
- EditionRevised ed.
- PublisherOxford University Press
- Publication dateNovember 27, 1997
- LanguageEnglish
- Dimensions10.48 x 4.67 x 1.14 inches
- Print length432 pages
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- Publisher : Oxford University Press; Revised ed. edition (November 27, 1997)
- Language : English
- Paperback : 432 pages
- ISBN-10 : 0195117891
- ISBN-13 : 978-0195117899
- Item Weight : 2.31 pounds
- Dimensions : 10.48 x 4.67 x 1.14 inches
- Best Sellers Rank: #247,057 in Books (See Top 100 in Books)
- #353 in Philosophy Metaphysics
- #385 in Consciousness & Thought Philosophy
- #720 in Cognitive Psychology (Books)
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In The Conscious Mind: In Search of a Fundamental Theory, David Chalmers introduces the notion of the hard problem of consciousness. According to Chalmers, the hard problem of consciousness is explaining how we experience it with respect to: (1) sensory inputs and the mysterious modes of their neural processing and (2) qualia - phenomena where the processing is accompanied by ineffably subjective aspects of conscious experience which apprehend the redness of red, the beauty of mathematical forms, love, the selfness experience. These have a relationship with physical brain-states, but are not identical to brain states because they are transcendent - essentially objectively unmeasurable - states of consciousness.
Chalmers observes that subjective information processing invariably accompanies sensory and neural signal processing. We do not just retain visual sensations; we judge the quality of colors, the contrast of dark and light, the quality of depth in a visual field with meaningful images that are conjured up mentally, that are felt emotionally, and inspire experiential conscious thought. What unites these states of consciousness somehow transcends the physical sensory experiences.
Empirical science and neuroscience have attempted to explain the nature of conscious experience. But to fully account for conscious experience, Chalmers suggests that we need an extra ingredient to explain and elucidate the hard problem of consciousness. That extra ingredient should explain how accumulated experiences, arising in and retained by the brain, are elaborated, interpreted, and qualified by our consciousness.
Roger Penrose and Staurt Hameroff (Toward a Science of Consciousness), suggest that human cognition may depend on quantum wavefunction collapses in microtubules, the cytoskeletons of a neuron. Penrose and Hameroff suspect that wavefunction collapse in microtubules may be the physical basis of conscious experience. In The Conscious Mind, Chalmers writes that although “these ideas are extremely speculative . . . they could at least conceivably help to explain certain elements of human cognitive functioning.”
Our embodiment is primarily a survival machine with no inherent consciousness, a Chalmerian zombie. In The Conscious Mind David Chalmers describes an isomorph, “A zombie [that] is just something physically identical to me but which has no conscious experience ‒ all is dark inside.” In any case, survival machines are programmed to respond to and survive their environments, to replicate and evolve, without any urgent need to assume human consciousness or engage in social intercourse.
Chalmers argues for the transcendent nature of consciousness; insisting that “consciousness is simply not to be characterized as a functional property” and that, “No explanation given wholly in physical terms can ever account for the emergence of conscious experience.” In My Universe - A Transcendent Reality, author Alex Vary proposes a conceptual framework to help elucidate the transcendent nature of consciousness and its relation to the physical world. The proposed framework is based on deductions and information revealed primarily by distinct quantum phenomena which are demonstrably transcendent. An essential feature of the framework is the mesostratum; a signal transmission modality. The mesostratum machinery that Vary imagines offers an explanatory gap-filling linkage from a transcendent continuum to a physical neural discontinuum. Vary suggests ways to access the mesostratum, to explore it, to explain the nature of human consciousness; and cites examples of access to the mesostratum. Chalmers essentially intuits that non-physical agencies (perhaps mesostratum agencies) participated in the appearance and evolution of human consciousness. If mesostratum agencies modulate human consciousness then at least select humans should be able to reciprocally access, explore, and exploit resources of the mesostratum. Anecdotal examples are legion: prodigious savants, geniuses, virtuosos, such as Mozart, Goethe, John von Neuman.
I'd say you really appreciate this as someone working in the field (more maybe than if you don't), because the problems he predicts are exactly the problems that arise. Every theory of consciousness at some points hits a brick wall. Global Workspace: highlighted information is conscious; IIT: integrated information is conscious; recurrently processed information is conscious; attended or memorized information is conscious; information generating meta information is conscious; neuronal interactions at 40Hz generate consciousness, and so on.
The problem with every theory, in the end, is that the starting point seems arbitrary and not rationally explainable. Why should 40Hz oscillations lead to experiences, but 39 Hz not? Why can information not simply be integrated unconsciously? What's so special about memory that it requires consciousness (as opposed to calculating root squares for instance)?
These problems that we run into in the practice of consciousness research highlight Chalmers's points: there is, in our understanding, an unbridgeable gap between functions and experiences. This makes the problem of consciousness considerably more intractable then nearly all other scientific problems.
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Chalmers recognize that the problem of consciousness lies uneasily at the border of science and philosophy, and is extraordinary difficult, if not impossible, to study using the scientific methods. This is a key fact that permeates the rest of the book. Chalmers recognize that the problem of consciousness may be a scientific problem but uses philosophical methods to understand it. For me, neither of both is completely true, and can not be asserted. As matter of fact, no one really knows if consciousness is something to be studied using scientific methods or philosophical methods, or even, some still-unknown method.
The first chapters (1-4) use philosophical methods to explain Consciousness, explaining “supervenience” as key concept to define the relationship of mental states with the physical states. It was extraordinary difficult for me to read it and follow it (I'm not a philosopher), so I just skim through most of it (as suggested by Chalmers). A large part of this section is devoted to defining what is consciousness, the conscious experience, the cognitive process, functionalism, physical vs psychical states, and so on. But no final definition of consciousness is fully achieved. Also, the mind-body argument is strongly argued against many of the arguments of other authors (Rosenthal, Dennett among others).
Then Chalmers analyze the consciousness problem using a cognitive psychology model and process approach but without really going anywhere. Then interestingly Chalmers switches to quantum mechanics theory as a possible explanation of consciousness being the “observer” entity required for quantum mechanics to work. Then later Chalmers discuss the Information Theory, as another alternative explanation of consciousness which inadvertently bring us to a “panpsychism” realm.
This book at heart is really about an epistemic problem. For me this is an important corollary. As Chalmers himself admits: “Given the actual epistemological assumptions. We need to find a new paradigm”. I completely agree with this statement. Chalmers proposes a final theory, as a set of psychophysical laws analogous to fundamental laws in physics, but do not go into the details or the foundations of it. At the end Chalmers seems to agree with the Everett interpretation of quantum mechanics: “the Everett interpretation seems in many ways the most attractive, but at the same time it is the hardest to accept.”.
There is a lot to say about this book, but it is not my purpose and I'm not able to do a comprehensive review. This book is very technical, I'm not a philosopher, but although it takes me more time than usual to read it, it was worthwhile. I really like to read and know about the consciousness problem, and this book give me valuable answers: Consciousness is out of the scope of science method and philosophy, and we need a new epistemic approach; This book is an evocative journey to understand consciousness from quite different views, perspectives, models, methods, and though not conclusive, it is worthwhile.
Reviewed in the Netherlands on June 5, 2023
Mas gostei, até agora, da forma de apresentação do tema principal do livro.
Está escrito em um inglês muito correto.
In questi studi, la coscienza viene definita come stato vigile, e normalmente è basata sulle dichiarazioni dei pazienti/volontari. Nonostante che in molti articoli scientifici viene dichiarato che la coscienza è un fenomeno biologico che non richiede nessuna nuova legge fisica per essere spiegata, nessuno, finora, è mai riuscito a spiegare in modo soddisfacente come un fenomeno fisico-chimico, ormai ben conosciuto, come l'attività neuronale possa creare la coscienza. Chalmers evidenzia questo fatto per tutto il suo saggio e sostiene che la coscienza, pur essendo correlata all'attività del cervello, non possa essere spiegata in termini fisico-chimici.
Si tratta di un libro molto impegnativo, non certo di facile lettura. Non è un testo divulgativo. Tuttavia, secondo il mio punto di vista, Chalmers avrebbe potuto esporre gli stessi concetti in modo più sintetico: spesso ho trovato molte ripetizioni degli stessi argomenti in capitoli diversi, appesantendo inutilmente il saggio.









