New genetic theory might pave way to understanding human intelligence – Tim Radford  Monday 21 December 2015 11.27 EST


The researchers found that genes that influenced the intelligence and ability of healthy people were the same ones that impaired cognitive ability and caused epilepsy when mutated. Photograph: Science Picture Co./Corbis

New genetic theory might pave way to understanding human intelligenceScientists from Imperial College believe that intelligence may be influenced by two networks of genes, possibly controlled by a master regulatory system

British scientists believe they have made a huge step forward in the understanding of the mechanisms of human intelligence. That genetic inheritance must play some part has never been disputed. Despite occasional claims later dismissed, no-one has yet produced a single gene that controls intelligence.

But Michael Johnson of Imperial College London, a consultant neurologist and colleagues report in Nature Neuroscience that they may have discovered a very different answer: two networks of genes, perhaps controlled by some master regulatory system, lie behind the human gift for lateral thinking, mental arithmetic, pub quizzes, strategic planning, cryptic crosswords and the ability to laugh at limericks.

Source: New genetic theory might pave way to understanding human intelligence | Science | The Guardian

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