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Scientists Can Read Your Mind with a Brain Scan

By scanning your brain, scientists can tell what memory you are recalling.

To see if they could discern complex information during scans, scientists more recently had 10 volunteers watch three films, each seven-seconds long and featuring a different actress in a fairly similar everyday scenario on a typical urban street. Participants watched the films 15 times.

The researchers scanned the participants' brains using functional magnetic resonance imaging (fMRI) while the participants were asked to recall the films. Using a computer algorithm, the researchers could accurately predict which film volunteers were recalling as they had their brains scanned.

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