This, indeed, is the problem, the ultimate question, in neuroscience-and it cannot be answered, even in principle, without a global theory of brain function, one capable of showing the interactions of every level, from the micropatterns of individual neuronal responses to the grand macropatterns of an actual lived life. Such a theory, a neural theory of personal identity, has been proposed in the last few years by Gerald M. Edelman, in his theory of neuronal group selection, or "neural Darwinism.
( Oliver Sacks )
[ An Anthropologist on Mars: ]
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