Mice given human brain gene learned tasks faster

Although it's far from the sort of brain transplant beloved by science fiction enthusiasts, scientists have taken one step in that direction: they have spliced a key human brain gene into mice. In the first study designed to assess how partially 'humanizing' brains of a different species affects key cognitive functions, scientists reported on Monday that mice carrying a human gene associated with language learned new ways to find food in mazes faster than normal mice...

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