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Old memories interfere with remembering new ones

Scans reveal how the brain juggles outdated and fresh information

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3:52pm, March 7, 2012

As anyone who has typed an outdated e-mail password before finally dredging up the new one knows, it’s easy to remember the wrong thing. Now, by capturing the battle between right and wrong memories in the brain, scientists have found that the struggle can get messy.

The results, published March 7 in the Journal of Neuroscience, bring scientists closer to understanding how people usually manage to pull up the right memory, and what goes wrong when this process fails. “To me, one of the most remarkable things isn’t how much we store in memory, but how well we’re able to find a memory,” says study coauthor Brice Kuhl of Yale University.

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