http://www.sciencedaily.com/releases/2012/03/120329141920.htm
yllättävän yksinkertainen:
"In the March 30 issue of Science a team of investigators presents a surprising answer, reporting their discovery of a remarkably simple organizational structure in the brains of humans and other primates."
"I don't think anyone suspected the brain would have this sort of pervasive geometric pattern," Wedeen says. "Although our findings could be described as a new longitude and latitude for the brain, they're also leading us to an entirely new understanding of how and why the brain is organized the way it is. The old image of the brain as a tangle of thousands of discrete, unconnected wires didn't make sense from an evolutionary standpoint. How could natural selection guide each of those wires into more efficient, advantageous configurations?
"The very simplicity of this grid structure is the reason why it can accomodate the random, gradual changes of evolution," he continues. "It's easier for a simple structure to change and adapt, whether we're talking about the big changes that occur across evolution or the changes that can occur during an individual's lifetime -- both the normal neuroplasticity associated with development and learning or the damage that results from injury or disease. A simple grid structure makes both evolutionary and develomental sense."
yllättävän yksinkertainen:
"In the March 30 issue of Science a team of investigators presents a surprising answer, reporting their discovery of a remarkably simple organizational structure in the brains of humans and other primates."
"I don't think anyone suspected the brain would have this sort of pervasive geometric pattern," Wedeen says. "Although our findings could be described as a new longitude and latitude for the brain, they're also leading us to an entirely new understanding of how and why the brain is organized the way it is. The old image of the brain as a tangle of thousands of discrete, unconnected wires didn't make sense from an evolutionary standpoint. How could natural selection guide each of those wires into more efficient, advantageous configurations?
"The very simplicity of this grid structure is the reason why it can accomodate the random, gradual changes of evolution," he continues. "It's easier for a simple structure to change and adapt, whether we're talking about the big changes that occur across evolution or the changes that can occur during an individual's lifetime -- both the normal neuroplasticity associated with development and learning or the damage that results from injury or disease. A simple grid structure makes both evolutionary and develomental sense."
Vastaukset 2
Vanhimmat
Onko näin?
Eikö olisi yllättävämpää, jos rakenne olisi evoluution kanssa ristiriitainen?