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August 1, 2012 07:05 pm

Goodbye, IQ Tests: Brain Imaging Predicts Intelligence Levels


An anonymous reader writes "Research from Washington University in St. Louis has identified variations in brain scans that they believe identify portions of the brain that are responsible for intelligence (abstract). As suspected (and as explained by cartoons) brain size does play a small role; they said that brain size accounts for 6.7 percent of variance in intelligence. Recent research has placed the brain's prefrontal cortex, a region just behind the forehead, as providing for 5 percent of the variation in intelligence between people. The research from Washington University targets the left prefrontal cortex, and the strength of neural connections that it has to the rest of the brain. They think these differences account for 10 percent of differences in intelligence among people. The study is the first to connect those differences to intelligence in people."

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Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/rCIIt3BuRC4/goodbye-iq-tests-brain-imaging-predicts-intelligence-levels

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