Sunday, March 11, 2007

Eternal sunshine of the spotless mind

From the news pages of Nature, we discover that Hollywood is barely keeping ahead of the latest breakthrough in science.
Wipe out a single memory

A single, specific memory has been wiped from the brains of rats, leaving other recollections intact.

LeDoux's team also confirms the idea that a part of the brain called the amygdala is central to this process - communication between neurons in this part of the brain usually increases when a fearful memory forms, but it decreases in the treated rats. This shows that the fearful memory is actually deleted, rather than simply breaking the link between the memory and a fearful response.

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