Do Adult Brains Make New Neurons?

In 1928, Santiago Ramón y Cajal, the father of modern neuroscience, proclaimed that the brains of adult humans never make new neurons. “Once development was ended,” he wrote, “the founts of growth and regeneration … dried up irrevocably. In the adult centers the nerve paths are something fixed, ended and immutable. Everything must die, nothing…

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THE DISMAL SCIENCE REMAINS DISMAL

WHEN HRISTOS DOUCOULIAGOS was a young economist in the mid-1990s, he got interested in all the ways economics was wrong about itself—bias, underpowered research, statistical shenanigans. Nobody wanted to hear it. “I’d go to seminars and people would say, ‘You’ll never get this published,’” Doucouliagos, now at Deakin University in Australia, says. “They’d say, ‘this is bordering on libel.’”…

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