Brains as Computers: Metaphor, Analogy, Theory or Fact?

Whether electronic, analog or quantum, a computer is a programmable machine. Wilder Penfield held that the brain is literally a computer, because he was a dualist: the mind programs the brain. If this type of dualism is rejected, then identifying the brain to a computer requires defining what a brai...

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Main Author: Romain Brette
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Ecology and Evolution
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fevo.2022.878729/full
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description Whether electronic, analog or quantum, a computer is a programmable machine. Wilder Penfield held that the brain is literally a computer, because he was a dualist: the mind programs the brain. If this type of dualism is rejected, then identifying the brain to a computer requires defining what a brain “program” might mean and who gets to “program” the brain. If the brain “programs” itself when it learns, then this is a metaphor. If evolution “programs” the brain, then this is a metaphor. Indeed, in the neuroscience literature, the brain-computer is typically not used as an analogy, i.e., as an explicit comparison, but metaphorically, by importing terms from the field of computers into neuroscientific discourse: we assert that brains compute the location of sounds, we wonder how perceptual algorithms are implemented in the brain. Considerable difficulties arise when attempting to give a precise biological description of these terms, which is the sign that we are indeed dealing with a metaphor. Metaphors can be both useful and misleading. The appeal of the brain-computer metaphor is that it promises to bridge physiological and mental domains. But it is misleading because the basis of this promise is that computer terms are themselves imported from the mental domain (calculation, memory, information). In other words, the brain-computer metaphor offers a reductionist view of cognition (all cognition is calculation) rather than a naturalistic theory of cognition, hidden behind a metaphoric blanket.
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spelling doaj.art-65d873d6966d46c9a9b1959c748d02d72022-12-22T02:09:20ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2022-04-011010.3389/fevo.2022.878729878729Brains as Computers: Metaphor, Analogy, Theory or Fact?Romain BretteWhether electronic, analog or quantum, a computer is a programmable machine. Wilder Penfield held that the brain is literally a computer, because he was a dualist: the mind programs the brain. If this type of dualism is rejected, then identifying the brain to a computer requires defining what a brain “program” might mean and who gets to “program” the brain. If the brain “programs” itself when it learns, then this is a metaphor. If evolution “programs” the brain, then this is a metaphor. Indeed, in the neuroscience literature, the brain-computer is typically not used as an analogy, i.e., as an explicit comparison, but metaphorically, by importing terms from the field of computers into neuroscientific discourse: we assert that brains compute the location of sounds, we wonder how perceptual algorithms are implemented in the brain. Considerable difficulties arise when attempting to give a precise biological description of these terms, which is the sign that we are indeed dealing with a metaphor. Metaphors can be both useful and misleading. The appeal of the brain-computer metaphor is that it promises to bridge physiological and mental domains. But it is misleading because the basis of this promise is that computer terms are themselves imported from the mental domain (calculation, memory, information). In other words, the brain-computer metaphor offers a reductionist view of cognition (all cognition is calculation) rather than a naturalistic theory of cognition, hidden behind a metaphoric blanket.https://www.frontiersin.org/articles/10.3389/fevo.2022.878729/fullbrain-computer metaphoralgorithmsprogramsphilosophymetaphors
spellingShingle Romain Brette
Brains as Computers: Metaphor, Analogy, Theory or Fact?
Frontiers in Ecology and Evolution
brain-computer metaphor
algorithms
programs
philosophy
metaphors
title Brains as Computers: Metaphor, Analogy, Theory or Fact?
title_full Brains as Computers: Metaphor, Analogy, Theory or Fact?
title_fullStr Brains as Computers: Metaphor, Analogy, Theory or Fact?
title_full_unstemmed Brains as Computers: Metaphor, Analogy, Theory or Fact?
title_short Brains as Computers: Metaphor, Analogy, Theory or Fact?
title_sort brains as computers metaphor analogy theory or fact
topic brain-computer metaphor
algorithms
programs
philosophy
metaphors
url https://www.frontiersin.org/articles/10.3389/fevo.2022.878729/full
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