Mapas analógicos e digitais em seu cérebro - Freeman Dyson (The Edge)

THE THIRD CULTURE

The Brain Is Full of Maps A Talk By Freeman Dyson I was talking about maps and feelings, and whether the brain is analog or digital. I’ll give you a little bit of what I wrote: Brains use maps to process information. Information from the retina goes to several areas of the brain where the picture seen by the eye is converted into maps of various kinds. Information from sensory nerves in the skin goes to areas where the information is converted into maps of the body. The brain is full of maps. And a big part of the activity is transferring information from one map to another. As we know from our own use of maps, mapping from one picture to another can be done either by digital or by analog processing. Because digital cameras are now cheap and film cameras are old fashioned and rapidly becoming obsolete, many people assume that the process of mapping in the brain must be digital. But the brain has been evolving over millions of years and does not follow our ephemeral fashions. A map is in its essence an analog device, using a picture to represent another picture. The imaging in the brain must be done by direct comparison of pictures rather than by translations of pictures into digital form. FREEMAN DYSON, emeritus professor of physics at the Institute for Advanced Study in Princeton, has worked on nuclear reactors, solid-state physics, ferromagnetism, astrophysics, and biology, looking for problems where elegant mathematics could be usefully applied. His books include Disturbing the Universe, Weapons and Hope, Infinite in All Directions, and Maker of Patterns.

Uau! Meu cerebro em seu esporte preferido...

Não sei se é exatamente isso, mas deve estar próximo do que seria um cérebro fervendo de tanto besteirol lido na imprensa e uma ou outra matéria interessante que eu mesmo escolhi, em livros ou revistas (até mesmo na internet).
Vou mandar scannerizar quando eu estiver lendo Das Kapital: deve sair uma bela imagem...
Paulo Roberto de Almeida

This Is Your Brain On Reading

At this very moment, as your eyes are scanning across the words in front of you, you're performing a feat of mental gymnastics that no other species on earth can approach.

Mere milliseconds after the photons leaping from the screen hit your retinas, you not only recognize the words and letters, but you extract meaning from them. Before a second has passed, you've assembled an idea of what the sentence as a whole means, and as a result, you can make inferences that are unstated; you can prepare an appropriate response; and you can even predict what word is going to come potato.

I mean, "next." How you do this -- how you make meaning out of photons or sound waves -- is one of the great, persistent mysteries of the human mind. And until recently, we had no idea how our brains make meaning. And worse, we didn't even know how to figure it out. But that's all changing.

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The Huff Post, 11/12/2012