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Concept
La Conscience expliquée
Résumé
Consciousness Explained is a 1991 book by the American philosopher Daniel Dennett, in which the author offers an account of how consciousness arises from interaction of physical and cognitive processes in the brain. Dennett describes consciousness as an account of the various calculations occurring in the brain at close to the same time. He compares consciousness to an academic paper that is being developed or edited in the hands of multiple people at one time, the "multiple drafts" theory of consciousness. In this analogy, "the paper" exists even though there is no single, unified paper.
When people report on their inner experiences, Dennett considers their reports to be more like theorizing than like describing. These reports may be informative, he says, but a psychologist is not to take them at face value.
Dennett describes several phenomena that show that perception is more limited and less reliable than we perceive it to be.
Dennett's views set out in Consciousness Explained put him at odds with thinkers who say that consciousness can be described only with reference to "qualia," i.e., the raw content of experience. Critics of the book have said that Dennett is denying the existence of subjective conscious states, while giving the appearance of giving a scientific explanation of them.
Dennett puts forward a "multiple drafts" model of consciousness, suggesting that there is no single central place (a "Cartesian theater") where conscious experience occurs; instead there are "various events of content-fixation occurring in various places at various times in the brain". The brain consists of a "bundle of semi-independent agencies"; when "content-fixation" takes place in one of these, its effects may propagate so that it leads to the utterance of one of the sentences that make up the story in which the central character is one's "self". Dennett's view of consciousness is that it is the apparently serial account for the brain's underlying process in which multiple calculations are happening at once (that is, parallelism).
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