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Saturday, September 22, 2012

Memory


Why your memory is like the telephone game

Each time you recall an event, your brain distorts it
September 21, 2012
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(Credit: iStockphoto)
Remember the telephone game where people take turns whispering a message into the ear of the next person in line? By the time the last person speaks it out loud, the message has radically changed. It’s been altered with each retelling.
Every time you remember an event from the past, your brain networks change in ways that can alter the later recall of the event. So the next time you remember it, you might recall not the original event, but what you remembered the previous time.
“A memory is not simply an image produced by time traveling back to the original event — it can be an image that is somewhat distorted because of the prior times you remembered it,” said Donna Bridge, a postdoctoral fellow at Northwestern University Feinberg School of Medicine and lead author of the paper on the study recently published in the Journal of Neuroscience./.../

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