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Quote of the day

'By far the greatest danger of Artificial Intelligence is that people conclude too early that they understand it'

 

Eliezer Yudkowsky

In the blink of an eye

RATE THIS! +11
Posted in Science on 17th Jan, 2014 01:22 AM by AlexMuller

Imagine seeing a dozen pictures flash by in a fraction of a second. You might think it would be impossible to identify any images you see for such a short time. However, a team of neuroscientists from MIT has found that the human brain can process entire images that the eye sees for as little as 13 milliseconds, the first evidence of such rapid processing speed.

 
That speed is far faster than the 100 milliseconds suggested by previous studies. In the new study, which appears in the journal Attention, Perception, and Psychophysics, researchers asked subjects to look for a particular type of image, such as “picnic” or “smiling couple,” as they viewed a series of six or 12 images, each presented for between 13 and 80 milliseconds.
 
“The fact that you can do that at these high speeds indicates to us that what vision does is find concepts. That’s what the brain is doing all day long — trying to understand what we’re looking at,” says Mary Potter, an MIT professor of brain and cognitive sciences and senior author of the study.
 
This rapid-fire processing may help direct the eyes, which shift their gaze three times per second, to their next target, Potter says. “The job of the eyes is not only to get the information into the brain, but to allow the brain to think about it rapidly enough to know what you should look at next. So in general we’re calibrating our eyes so they move around just as often as possible consistent with understanding what we’re seeing,” she says.
 
Other authors of the paper are former MIT postdoc Brad Wyble, now at Pennsylvania State University, postdoc Carl Hagmann, and research assistant Emily McCourt. 

Tags: eyevisionbrainneurosciencerecognition

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Comments

Author: Guest
Posted: 2014-01-17
+2
This is so fast. Coordination between the eye and processing by the brain is amazing Reply
Author: Guest
Posted: 2014-01-17
+0
they also found that although the images are seen for only 13 milliseconds before the next image appears, part of the brain continues to process those images for longer than that. All this is very new Reply
Author: Guest
Posted: 2014-01-17
+1
They also speculate how this could be an advantage. The best suggestion is that the ability to identify images seen so briefly may help the brain as it decides where to focus the eyes, which dart from point to point in brief movements Reply
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LVMH : -Longchamp-L'Europe va compliquer la donne en 2012, infos et conseils valeur FR0000121014, MC - Les Echos Bourse Reply
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When I initlaliy left a comment I clicked the Notify me any time new comments are added checkbox and now every time a remark is added I receive 4 messages with the identical comment. Reply


 

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