This is your brain on negative ads – Tech News & Reviews – MSNBC.com:

WASHINGTON – The grainy black-and-white images appear on television, while ominous music plays in the background. It’s another in a blizzard of negative political ads and before you consciously know it, the message takes hold of your brain.

You may not want it to, but it works just about instantly.

In fact, the ad’s effects on the brain “are actually shocking,” says UCLA psychiatry professor Dr. Marco Iacoboni.

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