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Wealth and ambition

Rats living in fancier digs seek richer rewards

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3:10pm, December 3, 2010

Give lab rats a week at the Rodent Ritz and they’re not thinking Cheerios so much anymore. They’re thinking chocolate.

Upgrading their real estate changed rats’ bias in guessing what to do about ambiguous cues in a lab test, says cognitive neuroscientist Nichola Brydges of the University of Edinburgh.

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