Neural coding used in memory is discovered

IRVINE, Calif., Sep 08, 2005 (United Press International via COMTEX) -- Scientists say they've discovered a neural coding mechanism the brain uses to register the intensity of memories based on the importance of the experience.

While the University of California-Irvine neurobiologists have long hypothesized such a type of neural coding, the study presents the first evidence that a "memory code" of any kind may exist.

The UCI researchers believe the code, as well as similar codes that may yet be discovered, will not only broaden the understanding of normal learning and memory, but also may shed light on learning disorders. It may also one day be possible to manipulate the codes to control what and how we remember -- not only basic sounds, but complicated information and events.

"This memory code may help explain both good and poor memory," said Norman Weinberger, a professor of neurobiology and behavior in UCI's Center for the Neurobiology of Learning and Memory. "People tend to remember important experiences better than routine ones."

Study results appear on the Online Early Edition of the Proceedings of the National Academy of Sciences.