Why Can Some People Recall Every Day Of Their Lives? Brain Scans Offer Clues

NPR:

Six years ago, we told you about a woman, identified as A.J., who could remember the details of nearly every day of her life. At the time, researchers thought she was unique. But since then, a handful of such individuals have been identified. And now, researchers are trying to understand how their extraordinary memories work.

Bob Petrella, 62, of Los Angeles had to go through a lot of memory testing to qualify as someone with superior autobiographical memory. First, there were lots of questions about news events from the past several decades, like the O.J. Simpson car chase.

Petrella scored 55 percent correct on the news events, according to a paper published in July in the journal Neurobiology of Learning and Memory. (Most people get 15 percent.) Then he was quizzed about his own life.

Read the whole story: NPR

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