Wednesday, May 20, 2009

Study shows how brain 'time-stamps' memories

Every day, the brain generates thousands of new brain cells. Newly created cells are active storing memories for a few weeks before younger ones take over. Furthermore, the mind "encodes memories that occur around the same time similarly." Through this process, "the mind knows whether a memory happened before, after or alongside something else," and thereby "time stamps" them. (CNN)

What's not clear in the CNN article is how memories are stored long term. It turns out short-term memories are stored in the hippocampus (deep inside the brain) and long-term ones are kept near the surface of the brain. Does this mean brain cells are shifted outward? Sounds pretty strange. Pound360 will research this a little more and get back to you.

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I started pound360 to channel my obsession with vitamins, running and the five senses. Eventually, I got bored focusing on all that stuff, so I came back from a one month hiatus in May of 2007 (one year after launching Pound360) and broadened my mumblings here to include all science.