Detecting misinformation can improve memory later on

Exposure to false information about an event usually makes it more difficult for people to recall the original details, but new research suggests that there may be times when misinformation actually boosts memory. Research published in Psychological Science, a journal of the Association for Psychological Science, shows that people who actually notice that the misinformation is inconsistent with the original event have better memory for the event compared with people who never saw the misinformation in the first place.
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