Wednesday, November 30, 2005

Discovery disproves simple concept of memory as 'storage space'

Discovery disproves simple concept of memory as 'storage space': "Even if you could get more RAM for your brain, the extra storage probably wouldn't make it easier for you to find where you left your car keys.

What may help, according to a discovery published Nov. 24 in the journal Nature, is a better bouncer – as in the type of bouncer who manages crowd control for nightclubs. The study by Edward Vogel, an assistant professor of cognitive neuroscience at the University of Oregon, is the first to demonstrate that awareness, or 'visual working memory,' depends on your ability to filter out irrelevant information.

'Until now, it's been assumed that people with high capacity visual working memory had greater storage but actually, it's about the bouncer – a neural mechanism that controls what information gets into awareness,' Vogel said.

The findings turn upside down the popular concept that a person's memory capacity, which is strongly related to intelligence, is solely dependent upon the amount of information you can cram into your head at one time. These results have broad implications and may lead to developing more effective ways to optimize memory as well as improved diagnosis and treatment of cognitive deficits associated with attention deficit disorder and schizophrenia."

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