In Learning, The Brain Forgets Things On Purpose

“Scientists have known that newly acquired, short-term memories are often fleeting. But a new study in flies suggests that kind of forgetfulness doesn’t just happen. Rather, an active process of erasing memories may in some ways be as important as the ability to lay down new memories, say researchers who report their findings in the February 19th issue of the journal Cell.


“Learning activates the biochemical formation of memory,” says Yi Zhong of Tsinghua University and Cold Spring Harbor Laboratory. “But you need to remove memories for new information to come in. We’ve found that forgetting is an active process to remove memory.”

The researchers have traced that process to a molecular pathway including a small protein known as Rac. When that mechanism is blocked, flies hold on to newly acquired memories for longer than they otherwise would.”

Read more at Science Daily


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