Thursday, March 30, 2006

Smart Kids Are Slower By William Saletan

Smart Kids Are Slower By William Saletan: "Smart Kids Are Slower
Why your child's brain takes longer to develop.
By William Saletan
Updated Thursday, March 30, 2006, at 7:44 AM ET

(For the latest Human Nature columns on polygamy, Social Security, and morning-after pills, click here.)

The brains of smarter kids are slower to develop. The old theory posited that smarter people had bigger frontal lobes or more gray matter, probably due to genes. But a new analysis shows that at age 7, kids with higher IQs actually have thinner cortexes (the most sophisticated brain component) than their peers do. Cortexes thicken, then thin out in all children, but the higher your IQ, the later this happens."


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