National Geographic : 2007 Nov
BY JOSHUA FOER PHOTOGRAPHS BY MAGGIE STEBER here is a 41-year-old woman, an administrative assistant from California known in the medi cal literature only as "AJ," who remembers almost every day of her life since age 11. There is an 85-year-old man, a retired lab technician called "EP," who remembers only his most recent thought. She might have the best memory in the world. He could very well have the worst. "My memory flows like a movie-nonstop and uncontrollable," says AJ. She remembers that at 12:34 p.m. on Sunday, August 3, 1986, a young man she had a crush on called her on the telephone. She remembers what hap pened on Murphy Brown on December 12, 1988. And she remembers that on March 28, 1992, she had lunch with her father at the Beverly Hills Hotel. She remembers world events and trips to the grocery store, the weather and her emotions. Virtually every day is there. She's not easily stumped. There have been a handful of people over the years with uncommonly good memories. Kim Peek, the 56-year-old savant who inspired the movie Rain Man, is said to have memorized nearly 12,000 books (he reads a page in 8 to 10 seconds). "S," a Russian journalist studied for three decades by the Russian neuropsychologist Alexander Luria, could remember impossibly long strings of words, numbers, and nonsense syllables years after he'd first heard them. But AJ is unique. Her extraordinary memory is not for facts or figures, but for her own life. Indeed, her inexhaustible memory for autobiograph ical details is so unprecedented and so poorly understood that James McGaugh, Elizabeth Parker, and Larry Cahill, the neuroscientists at the University of California, Irvine, who have been studying her for the past seven years, had to coin a new medical term to describe her condition: hyperthymestic syndrome. EP is six-foot-two, with perfectly parted white hair and unusually long ears. He's personable, 34 NATIONAL GEOGRAPHIC * NOVEMBER 2007 The 85-year-old California man researchers call "EP" dwells almost entirely in the present tense. A brain infection wiped out decades of memories, along with the capacity to create new ones.