When Memory Commits an Injustice – By Jonah Lehrer
Eyewitness mistakes lead to tragic errors in court, but new methods could help
The biggest lie of human memory is that it feels true. Although our recollections seem like literal snapshots of the past, they're actually deeply flawed reconstructions, a set of stories constantly undergoing rewrites.
Consider our collective memories of 9/11. For the last 10 years, researchers led by William Hirst of the New School and Elizabeth Phelps of New York University have been tracking the steady decay of what people recall about that tragic event. They first quizzed people shortly after the attacks, then after one year, and found that 37% of the details had already changed. Although the most recent data have yet to be published, they're expected to reveal that the vast majority of remembered "facts" are now make-believe.
If memory flaws only affected our personal past, that would be bad enough. But the problems created by our mistaken recollections affect all of society. More than 75,000 prosecutions every year are based entirely on the recollections of others. While perjury is a felony, the overwhelming majority of eyewitness errors aren't conscious or intentional. Rather, they're the inevitable side effects of the remembering process.
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