Michael Luscombe wrote: > On 12-Dec-08, at 3:26 PM, Bruce Johnson wrote: > >> >> Think Geordi's glasses, not reading the minds of prisoners. >> > > -- > > Yes and no. They are simply interpreted images out of the brain, but > if you read how they did it, there are a lot of possibilities there. > > First they hooked up the sensors and recorded blood flow in the brain > as many, many images were shown to the subjects. This gave them a > kind of dictionary of brain patterns to use to interpret the data > they got from fixed images. > > There was a similar experiment years ago with an owl, where they > could actually play back music that the owl had heard earlier from a > live feed of sensors on his brain. It was quite noisy (crackly) but > impressive. > > I'm curious about how these patterns match from person to person, or > even species to species. Using a baseline of brain activity as a > rosetta stone, you might be able to take a snapshot of one person's > brain an interpret it correctly, but will that same rosetta stone > work with a different person? How about animals? how does the > interpretation differ? Is there some sort of baseline path, or > alphabet, for which we can read mental disorders from the mistakes? > It would move the task of diagnosing mental disorders from cognitive > to evidence-based. It could change the legal system as we know it. > > How long before the system is externally manipulating blood flow in > the brain to produce mental states, rather than specific images? > Aside from the scary implications, how therapeutic could that be? For > example, predicting epileptic seizures and pushing blood away from > that area of the brain? I have no idea if that would work, I'm just > speculating. > > > Michael > > hm Alzheimer's ?
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