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February 16 2013

Roots of Language in Human and Bird Biology: Genes Activated for Human Speech Similar to Ones Used b


The genes activated for human speech are similar to the ones used by singing songbirds, new experiments suggest.

These results, which are not yet published, show that gene products produced for speech in the cortical and basal ganglia regions of the human brain correspond to similar molecules in the vocal communication areas of the brains of zebra finches and budgerigars. But these molecules aren't found in the brains of doves and quails -- vocal birds that do not learn their sounds.

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