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iir.ii
Oregon Daily Emerald
The independent campus newspaper for the University of Oregon
IN BRIEF
Memory filters help fulfill
brain storage capacity
EUGENE — It’s not how much you
know, it’s how much you can filter
out, according to a new study on hu
man memory.
University of Oregon researchers
compare the brain to computer memo
ry — even if you could get the equiva
lent of more RAM for your brain, the
extra storage capacity probably would
not make it any easier to find where
you left your car keys.
The study is the first to demon
strate that the level of mental aware
ness, or “visual working memory,”
depends on the ability to filter out ir
relevant information, researchers say.
“Until now, it’s been assumed
that people with high-capacity ‘visu
al working memory’ had greater
storage,” according to Edward Vogel,
a University neuroscientist who led
the research.
The study used a new technique for
measuring brain waves, developed by
Vogel, allowing researchers to record
the effects, moment by moment, of in
troducing new visual information.
The test subjects were asked to
remember arrays of colored squares
or rectangles. In one experiment, re
searchers told subjects to hold in
mind two red rectangles and ignore
two blue ones. Without exception,
high-capacity memory individuals
were good at dismissing the images
of the blue rectangles, but low
capacity individuals held all of the
rectangles in mind.
—The Associated Press
Switch: Three universities combine research
Continued from page 1
Weiss said.
Weiss said the University and Penn
State began collaborating on projects
related to these issues in 2001, when
his graduate student Rachel Smith,
who graduated from the University’s
Robert D. Clark Honors College in
1999 and wrote her honors thesis in
Hutchison’s lab, visited Eugene to see
old friends.
“She came back with the molecules
I 1 S P
in her pocket, basically, Weiss said.
Hutchison said it is too early to
predict exactly how the recent study’s
findings, which will be published in
the December issue of the Journal of
the American Chemical Society, will
be used.
Inman, who will earn her doctorate
in chemistry at the end of this term,
said a possible application of single
molecule switches could be comput
er memory cards. Computers encode
winter craft fair & open house
Tuesday 1 Nov 29 110am-4pm
• fine handcrafted items created by craft center instructors and staff
• tour our new glass studio
• glassblowing demonstrations thoughout the day
winter workshop registration
Thursday | Dec 1 110am
register online: craftcenter.uoregon.edu
the craft center o
located in the erb memorial union j 346-4361
UNtviasrrY or oiigom
information in a language made oi ze
roes and ones, two commands that
could also be interpreted as on and
off. The scanning tunneling micro
scope could encode information onto
the memory chip by turning switches
on and off in designated patterns and
then read the information later.
Contact the business, science
and technology reporter at
esylwester@dailyemerald. com
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