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Intelligence - nature or nurture? Researchers find a gene for intelligence and also that a bigger brain matters, yet other recent articles show how motivation affects learning.

Superager brains yield new clues to their remarkable memories

'Cognitive SuperAgers,' persons aged 80 and above with extraordinarily sharp memories, have distinctly different looking brains than those of normal older people, according to new research. A new study begins to reveal why the memories of these cognitively elite elders don't suffer the usual ravages of time. The discoveries may foster the development of strategies to protect the memories of normal aging persons as well as treat dementia.
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