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Old 09-23-2011, 03:21 PM   #1
Pat McDonald
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Experimenters show results of Mind Reading Machine

http://www.dailymail.co.uk/sciencete...es-brains.html
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Old 09-23-2011, 06:00 PM   #2
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I saw work on this quite a while ago. (I think it was in Japan?)

The original results had trouble reading numbers that filled the person's vision so it has definitely progressed quite a bit.

However, I doubt that it's anywhere near "mind reading" as the images are more or less pulled directly out of the person's visual cortex and what goes on in there is (to my knowledge) quite different from what happens in conscious thought or memory. Also, MRIs aren't really that accurate when you compare them to the complexity of the brain and they probably won't get much more accurate in the future.
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Old 09-24-2011, 12:00 PM   #3
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I've read about such technologies tested both by using MRI and electroencephalography, however there are 2 major cons of these technologies - computer has to analyze and 'learn' neuron activity of each subject separately, as each of us has slightly different neural pathways, plus you have to either be inside MRI equipment or have a net of electrodes on your head.
It is basically more of thought recognition than mind reading - it just recognizes activity patterns similar to ones analyzed earlier and interprets them.

So while it is possible that in few next years we will see a lot of electronics (computers, cellphones, video games etc.) directed by mind commands after properly calibrating to the user, using some kind of EEG headsets instead of pushing buttons, the danger of governments (or anyone else for that matter, like for example crackers) reading our minds is far away... Beside our TPs ;P
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Old 10-03-2011, 04:29 PM   #4
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Hmm... another snag of MRI is resolution. Currently it does not work on the level of the individual neuron, which is what would be required to accurately map a "mind" purely from nerve activity.

This technique doesn't go that path - instead, it measures variations in the blood flow of the visual cortext areas. It's pretty impressive considering the relative "crudity" of the MRI equipment.
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Old 10-05-2011, 11:40 PM   #5
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Originally Posted by Pat McDonald View Post
Hmm... another snag of MRI is resolution. Currently it does not work on the level of the individual neuron, which is what would be required to accurately map a "mind" purely from nerve activity.
Well, there are techniques allowing to see maybe not each individual neuron, but general pathways - directions in which neurons extend in given area due to intracellular fluid flow etc. IIRC fMRI (functional MRI) can do that and is used to map pathways in human brain which can show how those pathways get changed/broken by various diseases...
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