Sunday, 14 August 2011

Like Humans, Chimps Are Born With Immature Forebrains

Those are the conclusions of a study reported in the August 11th Current Biology that is the first to track the development of the chimpanzee brain over time and to make the comparison to humans.

"One of the most marked evolutionary changes underlying human-specific cognitive traits is a greatly enlarged prefrontal cortex," said Tetsuro Matsuzawa of Kyoto University in Japan. "It is also one of the latest-developing brain regions of the cerebrum."

That built-in developmental delay, now shown to be shared with chimps, may provide an extended period of plasticity, allowing both humans and our closest evolutionary cousins to develop complex social interactions, knowledge and skills that are shaped by life experiences, the researchers say

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