Scientists are beginning to understand why fearful memories are so persistent in the brain, and how they can be erased.
The research could help thousands of people with post-traumatic stress disorder, including many veterans, says Kerry Ressler, a psychiatrist at Emory University and investigator for the Howard Hughes Medical Institute. [...] So to understand why fearful memories are so persistent, researchers have been studying the amygdala. And a Swiss team seems to have found some clues — at least in rats.
September 4, 2009 via NPR
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