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A team of mind readers can now pinpoint exactly when a rat feels uncertain about its choices, simply by measuring its brain activity.

Doubt, they’ve discovered, creeps into the mind slowly. It starts with a few nerve cells near the front of the brain that get themselves into a tizzy. More and more cells join in, until a line is crossed and the mental maelstrom shakes up established patterns of brain activity — allowing rats, and possibly humans as well, to question their old beliefs about the world and explore new options, researchers report in the Oct. 5 issue of the journal Science.

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http://www.msnbc.msn.com/id/49296877/ns/technology_and_science-science/#.UHXpE8vsXEa

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