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  • M. S. Gazzaniga, "The Consciousness Instinct" 에서
    책 읽는 즐거움 2020. 3. 15. 05:40

     

     

     

     

    Michael S. Gazzaniga, "The Consciousness Instinct: Unraveling

    The mystery Of How The Brain Makes The Mind" (2018)

     

     

    Pattee, who has been a keen observer of human thought,

    feels that philosophers have approached the mind/brain divide

    from the wrong end of evolution. (p 176)

     

    Howard Pattee doesn't concern himself with the gap between

    the material brain and the immaterial mind.... The gap between

    living and non-living is at the root of the gap between the mind

    and the brain and offers a framework for addressing

    the mind/brain problem.

     

    Pattee argues that living matter is distinguished from

    non-living matter by its ability to replicate and

    to evolve over the course of time.

     

    Life did not just make more life. Life could increase in complexity;

    it could evolve.... He[Von Neumann] concluded that it needed

    a symbolic self-description, a genotype, a physical structure

    independent of the structure it was describing, the phenotype.

     

    He correctly predicted how cells actually replicate before

    Watson and Crick did.... He did not address the physical

    requirements for implementing his logic....

    Pattee took up the challenge.

     

    There must be a physical manifestation of von Neumann's

    symbols. What Pattee calls the physics of symbols produces

    certain problems.... Any living thing that "records" information

    is introducing a form of subjectivity into the system.

     

    The second problem is the relationship between the genotype

    and the phenotype. For example, when we consider DNA, the

    genotype is the DNA sequence that contains instructions for the

    living organism. The phenotype is the observable characteristics

    of an organism, such as its anatomy, biochemistry,

    physiology, and behavior. The genotype interacts

    with the environment to produce the phenotype.

     

    For one, the genotype is non-dynamic ... on the other hand,

    the phenotype ... is dynamic and uses energy.

     

    [I]t was from the control interface between these two layers

    that the epistemic cut [the unavoidable conceptual separation

    of the symbolic record of an event and the event itself] arose.

     

    Pattee extended von Neumann's logic by contending that

    the symbol themselves, which make up instructions (the

    hereditary record), must have a material structure and that

    the material structure, during the phenotype construction

    process (the building of the new automaton), constrains

    the process in a way that follows newton's laws.

     

    In one life, symbols are made of physical material (DNA is ...)

    that follows Newton's laws.... However, in the other life,

    as repositories of information, the symbols ignore these laws.

     

    The implication is that the gap between subjective conscious

    experience and the objective neural firings of our physical

    brains, those two modes of descriptions, may be bridged

    by a similar set of processes,, and it could even be

    possible that they are occurring inside cells. (p 194)

     

    [E]ach mental event is managed by brain modules that

    possess the capacity to make us conscious of the results

    of their processing. The results bubble up from various

    modules like bubbles in a boiling pot of water. Bubble after

    bubble, each the end result of a module's or a group of

    modules' processing, pops up and bursts forth for a moment,

    only to be replaced by others in a constant dynamic motion.

     

    Rebecca Saxe, at MIT. has discovered ... that there is a

    special human brain hardware in the right half brain that

    appears specialized for determining what the

    intentions of another person might be.

     

    [T]he left brain, which benefits from modules that

    enable abstract thinking, verbal coding, and much more,

    does not have the module to take into account

    the intentions of others. (p 212)

     

    In the end, we must realize that consciousness is an

    instinct. Consciousness is part of organismic life.

    We never have to learn how to produce it or

    how to utilize it. (p 237)

     

     

     

     

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