The brain edits memories of the past, updating them with new information. Scientists say this may help us function better in the present. But don't throw those photos away.
The researchers used scenes like this to test memory. When an object's location and a background scene are presented together, they are remembered as a whole event (top). But when new information is presented, like a new location for the small object, that new location is tied to the old scene (bottom).
Originally published on Thu February 6, 2014 7:04 am
Think about your fifth-birthday party. Maybe your mom carried the cake. What did her face look like? If you have a hard time imagining the way she looked then rather than how she looks now, you're not alone.
The brain edits memories relentlessly, updating the past with new information. Scientists say that this isn't a question of having a bad memory. Instead, they think the brain updates memories to make them more relevant and useful now — even if they're not a true representation of the past.