Scientists Map Brain Structures of General Intelligence

RedTracker| In what certain to be a controversial study, a team of top neuroscientists has mapped the brain structures that affect general intelligence.

The study, to be published the week of February 22 in the early edition of the Proceedings of the National Academy of Sciences, adds new insight to a highly controversial question: What is intelligence, and how can we measure it?

The research, which did utilize IQ scores of 241 brain-lesion patients, confirmed that ‘rather than residing in a single structure, general intelligence is determined by a network of regions across both sides of the brain.’

“It might have turned out that general intelligence doesn’t depend on specific brain areas at all, and just has to do with how the whole brain functions,” adds Ralph Adolphs, the Bren Professor of Psychology and Neuroscience and professor of biology at Cal Tech. “But that’s not what we found. In fact, the particular regions and connections we found are quite in line with an existing theory about intelligence called the ‘parieto-frontal integration theory.’ It says that general intelligence depends on the brain’s ability to integrate — to pull together — several different kinds of processing, such as working memory.” via Science Daily

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