Scientists achieve first measurements of selectivity mechanism
a. Example of the memory filtering test conducted by University of Oregon researchers. Participants must remember only the red rectangles and ignore the blue rectangles.
b. Brainwaves for high capacity and low capacity participants. Blue line is activity for 4 red items; Black line is for 2 red items; Red line is for 2 red items and 2 blue items. If the red line is close to the black line, subjects are efficient at keeping out the blue items. If the red line is close to the blue line, the subjects are unable to keep the blue items from popping into memory.
c. Correlation between a persons memory capacity and how good they are at keeping the irrelevant items out of memory.
Even if you could get more RAM for your brain, the extra storage probably wouldnt 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.
Melody Ward Leslie | EurekAlert!
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