11 March 2018

New York Post: This may be why you can’t remember the first years of life

Of course you don’t — and neither does anyone else. On average, the earliest people can remember is age 3½. Before that is darkness. [...]

A 6-month-old infant can remember something for at least a day, Jabr notes in his article, titled “This Is Where Your Childhood Memories Went.”

At 9 months, an infant can retain a memory for an entire month, and by age 2, for a whole year.

By the time a child is approaching kindergarten, he or she can recall much older memories in long, detailed and adorable spoken passages, reciting, for instance, what they did and saw on a trip to Disney World made 18 months prior, Jabr writes. [...]

In 2005, Patricia Bauer of Emory University in Atlanta, a leading scholar on memory development, found that 5½-year-olds remembered more than 80 percent of experiences they had at age 3. But 7½-year-olds remembered less than 40 percent of experiences they had at age 3. Where were these memories vanishing to? [...]

The secret may lie in the hippocampus — a seahorse-shaped region of the brain that’s essential to memory.

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