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Fire and ice

People frequently complain that they can’t remember things — and they wish their brains had more storage capacity, like today’s ever-expanding computer hard drives and RAM. If we could just improve the sheer size of our memory, we’d be able to retain and manipulate more data, and we’d become smarter and smarter — right?
Not according to an intriguing new experiment by brain scientists at the University of Oregon. Edward Vogel and a team of students took a handful of volunteers and tested their “visual working memory” — their ability to maintain awareness of events and objects around them. The test asked them to pay attention to red or blue bricks in a visual picture.
Now, visual working memory is highly correlated to intelligence: People with a bigger VWM tend to score much better on an array of cognitive challenges. For years, scientists have assumed that VWM is roughly analogous to cramming info into your head: The more you can fit in there, the smarter you are.
But when Vogel mapped the brain-wave activity of the volunteers, he noticed something much weirder. The people with the largest capacity in their VWM weren’t retaining tons of information. No, they were being quite selective. Their genius lay in being able to strip out inessential information: To pay attention only to the red bricks — to hold only those “in mind” — and to ignore the blue ones. The upshot, as the editors at Nature summarize, is that …
… this also implies that an individual’s effective memory capacity may not simply reflect storage space, as it does with a hard disk. It may also reflect how efficiently irrelevant information is excluded from using up vital storage capacity.
That chart above shows this relationship: The more efficiently the subjects’ brain worked, the bigger their memory capacity. This is not to say that people who can’t screen out stimuli are dumber. As Vogel noted, “Being a bit scattered tends to be a trait of highly imaginative people.” The more you rattle the marbles around in your brain, the more creative new connections you make, as it were — connections that might be lost on those focusing intently on just the red ones.
(Thanks to the Book of Joe for this one!)
I'm Clive Thompson, a writer on science, technology, and culture. This blog collects bits of offbeat research I'm running into, and musings thereon.
Currently, I'm a contributing writer for the New York Times Magazine and a columnist for Wired magazine. I also write for Fast Company and Wired magazine's web site, among other places. Email or AOL IM me (pomeranian99) to say hi or send in something strange!
The “Milky Way Transit Authority” map
Should automobile software be open-sourced?
My Bookforum review of Jaron Lanier’s “You Are Not A Gadget”
Molecular secrets of the “iron-plated snail”
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January 31, 2010 » 07:29 PM
V. A. To me death seems to be an evil.
M. What, to those who are already dead? or to those who must die?
A. To both.
M. It is a misery, then, because an evil?
A. Certainly.
M. Then those who have already died, and those who have still got to die, are both miserable?
A. So it appears to me.
M. Then all are miserable?
A. Every one.
January 24, 2010 » 03:22 PM
One of the more interesting trends is family, which came in at number five. Specifically, discussion about family, moms, dads, daughters, etc. jumped during 2009. With Facebook users getting older, this isn’t a big surprise. However, the fact that the mention of “kids” jumped by a factor of five this year is rather dramatic. It’s tough to know what this means, though. (via Facebook Unveils Most-Mentioned Topics of 2009
)
January 15, 2010 » 01:36 PM
BEYOND AWESOME. They are announcing a recall of the Plush Uterus “due to a potential choking hazard for children”. To apply for it, “Please send an email to the address below with the subject line, ‘UTERUS OPT OUT’”.
January 14, 2010 » 10:04 PM
“To order, please TYPE “YES” IN CHECKBOX BELOW TO AGREE YOU UNDERSTAND THIS PLUSH MUST BE KEPT AWAY FROM KIDS (it is a sex organ, after all). If it is not checked, WE WILL NOT SEND THE UTERUS.” (via @ibogost)
January 11, 2010 » 01:45 PM
I watched Space: 1999 back in the day, but I swear to god I do not remember this scene.
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