Re: News: High IQ kids have distinct pattern of brain development
- --- In email@example.com, artemistroy
>Correcting pre-Flynn-effect (low) I.Q.s -- by taking care of
> Any updates on this study? These children must have an immunity
> to environmental pollutants.
basic nutrition, toxins, infections, etc. -- is one thing,
not terribly difficult (we just DID it, in the developed
world). Lifting up already-normal I.Q.s is something else
again. It might not be possible. But maybe it is. Who
knows? We have not tried yet. The pattern of cortical
maturation (thin-thick-thin) observed below might be a
useful measure, a target pattern, when we start
experimenting with high-tech brain soups -- IGF-1,
DHEA, thyroxine, etc., probably pulsatile in accord with
chronobiologic factors yet to be elucidated -- during
periods of maximal plasticity. Let's try it on sheep,
> High IQ kids have distinct pattern of brain development
> By Patricia Reaney
> Mar 29, 2006, 21:59
> LONDON (Reuters) - Intelligence may have more to do with how the
> brain develops during adolescence than its overall size, researchers
> said on Wednesday.
> Using magnetic resonance imaging, scientists at the National
> Institutes of Health (NIH) in Bethesda, Maryland have shown that the
> brains of children with high IQs show a distinct pattern of
> The cortex, or outer mantle of the brain, starts out thinner and
> thickens more rapidly in very intelligent children. It peaks around
> 11 or 12 years old before thinning rapidly in the late teens.
> "We found that the cortex showed a different pattern of
> Philip Shaw, lead author of the research published in the journala
> Nature, said in an interview.
> Youngsters with average IQs had a thicker cortex to start with and
> peaked earlier before gradual thinning began.
> Shaw added that the changes were subtle and what is driving them is
> mystery. Why children have a thicker or thinner cortex initially isIQ.
> also not known.
> "Brainy children are not cleverer solely by virtue of having more or
> less grey matter at any one age," said Judith Rapoport, a co-author
> of the study.
> "Rather IQ is related to the dynamics of cortex maturation," she
> added in a statement.
> The scientists discovered the association between intelligence and
> brain development by taking MRI scans of 307 healthy children and
> teenagers, aged 5-19, over 2-year intervals as they grew up.
> They compared the scans to see how they related to the children's
> Very intelligent youngsters had scores of 121-145 while high IQswere
> between 109-120 and average between 83-108.of
> The smartest youngsters showed the highest rate of change in the
> scans. The scientists believe the longer thickening time in the very
> brainy children might indicate a longer period for the development
> high-level cognitive circuits in the brain.it
> The researchers added that the thinning phase could involve a "use
> or lose it" pruning, or killing off, of brain cells and their
> connections as the brain matures and becomes more efficient.
> "That might be happening more efficiently in the most intelligent
> children," said Shaw. "People with very agile minds tend to have a
> very agile cortex."