Mark Twain

"Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great."

- Mark Twain

Tuesday, February 11, 2014

Why Girls’ Brains Mature Faster Than Boys’ Brains



Why Girls’ Brains Mature Faster Than Boys’ Brains

It’s always been conventional wisdom that girls reach maturity more quickly than boys, but now scientists have provided some proof.


In new research published in the journal Cerebral Cortex, an international group of researchers led by a team from Newcastle University in England found that girls’ brains march through the reorganization and pruning typical of normal brain development earlier than boys’ brains.

In the study, in which 121 people between ages 4 to 40 were scanned using MRIs, the scientists documented the ebb and flow of new neural connections, and found that some brain fibers that bridged far-flung regions of the brain tended to remain stable, while shorter connections, many of which were redundant, were edited away. And the entire reorganization seemed to occur sooner in girls’ brains than in boys’ brains.

Females also tended to have more connections across the two hemispheres of the brain. The researchers believe that the earlier reorganization in girls makes the brain work more efficiently, and therefore reach a more mature state for processing the environment.

What drives the gender-based difference in timing isn’t clear from the current study, but the results suggest that may be a question worth investigating.



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