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Scientists demonstrate Matrix-like learning with no conscious effort

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Re: Scientists demonstrate Matrix-like learning with no conscious effort

#4

This looks either very amazing, or complete BS. I want examples. How did their experiments work? I don't care what it is that I'm learning, I wanna see a demo. Is there something I can buy/fund/donate to? Shut up and take my money.

>I don't care what it is that I'm learning

What if it's obedience? :)

Re: Scientists demonstrate Matrix-like learning with no conscious effort

#5
I don't really understand why this is so significant or perhaps I don't understand the experiment. You are fed some training set and a certain brain activity pattern is identified as the "target." Then you show a whole bunch of other stimuli and try to teach the brain to display the target activity pattern for a different stimulus by having this proxy indicator that tells you how close you are (green disk).

Don't we do this all the time? If I'm teaching a child the letters of the alphabet then I would show an example, have them try to guess it and then give them some indication of how close they are (yes you got it, you are pronouncing it weird, no that's the wrong letter). The only difference here is that you are using proxy whereby you identify a target brain activity pattern first. It seems pretty much impossible, however, to get a target for an individual without first seeing what the target is. Certainly everyone's "target" for the same problem must look quite different.

I suppose this could be pretty useful for brain-computer interfaces but I don't know if I'd go as far as saying this is matrix-like learning.

Re: Scientists demonstrate Matrix-like learning with no conscious effort

#6
post #5

I don't really understand why this is so significant or perhaps I don't understand the experiment. You are fed some training set and a certain brain activity pattern is identified as the "target." Then you show a whole bunch of other stimuli and try to teach the brain to display the target activity pattern for a different stimulus by having this proxy indicator that tells you how close you are (green disk). Don't we…

Why do we need computers? We already have the abacus.

Re: Scientists demonstrate Matrix-like learning with no conscious effort

#7
post #4

This looks either very amazing, or complete BS. I want examples. How did their experiments work? I don't care what it is that I'm learning, I wanna see a demo. Is there something I can buy/fund/donate to? Shut up and take my money.

>I don't care what it is that I'm learning What if it's obedience? :)

As with all technologies, there is use and there is misuse. These sort of fears are why I don't work for the government, but it doesn't stop things from being discovered. Indeed, discovery isn't evil, only what these discoveries and advancements may be used for.

Re: Scientists demonstrate Matrix-like learning with no conscious effort

#8

This looks either very amazing, or complete BS. I want examples. How did their experiments work? I don't care what it is that I'm learning, I wanna see a demo. Is there something I can buy/fund/donate to? Shut up and take my money.

The title is complete BS.

This is perceptual learning we are talking about, at the very lowest level - in this case just recognizing the orientation of a bar. And that's all the results apply to - not 'Matrix-like learning'.

And it's not passive, either. Subjects were asked to "somehow regulate activity in the posterior part of the brain to make the solid green disc that was presented 6 s later as large as possible (the maximum possible size corresponds to the outer green circle)."

That's effortful, although yes, they may not realize what effect this has on patterns of activity in their brain (patterns identified by fmri that the experimenters are trying to get the subjects to reinforce).

Re: Scientists demonstrate Matrix-like learning with no conscious effort

#9
This submission's title is misleading, and the original work could be better summarized as "improving at one task while doing another". The authors first determined a pattern of brain activation (indexed by blood flow) associated with the presentation of a target (visual) stimulus for a given subject. Then, they gave subjects real-time feedback about their brain activation while they performed a superficially different task. The trick is that the feedback on the second, different task was based on a subject's ability to cause the same pattern of brain activation (again, indexed by blood flow) that the experimenters first observed when the target stimulus was presented in the earlier session. Finally, subjects were tested on their ability to identify the target stimulus and others like it, and they showed a statistically reliable improvement for the (unknowingly) trained target, but not for other, similar items. It's fascinating, but suggesting that this is anything like what's been depicted in science fiction movies (yes, like The Matrix) is silly.
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