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Medical Forum / General / General / February 2005Prothesis, Wolpaw, Wadsworth and telepathy
The success in Wadsworth by Dr Wolpaw to control a computer cursor by reading and interpreting through language recognition software the signals usually read only by EEG, suggests the possibility to direct this kind of research toward the development of advvanced prothesis to simulate the natural movement of hands. Though his method is not invasive, it may be possible to complement the elecric field reading with direct neuron contact through the use of very thin interfases, similar to the use of optical fibers. This can be a natural use for nanotubules, able to serve as support for (single atom?) filaments establishing direct contact with neurons in an almost non invasive and subtle way. Theoretically, with two way stimulation, the brain in touch with these filaments should be able to be trained and establish control through the same processes we use to speak. That would allow fine control of advanced robotic hands and other manipulators. Somebody knows if and where is this kind of research being conducted? I have not heard of these exact experiments, but have heard of similar experiments dealing with monkeys. I just grabbed some quick links off Google: http://www.cbc.ca/stories/2003/10/13/monkey_brain031013 http://www.washingtonpost.com/ac2/wp-dyn/A17434-2003Oct12?language=printer Google search: http://www.google.com/search?hl=en&q=monkey+mind+robotic The experiments described in the links above involve implanting wires into a monkeys brains, specifically dealing with muscle control, this allowed the monkeys to move a cursor around on a screen with their minds. Apparently electric currents in this part of the brain single the onset of muscle movement. The monkeys learned to play a game where they would get a treat each time they moved the cursor into the middle of the screen. Eventually they learned they could do it with out the joystick at all. The monkeys thought about moving their arm and the game acted as if they had moved their arm when in reality they had only thought about it. This is what I remember from the articles I have read sorry if my wording is vague or confusing. The nanotube interface seems like a logical step forward, though one that does not seem likely anytime soon. A nanotube is a long molecule cylindrical in nature. The most famous and common example would by the carbon nanotube. Here is a link that look useful at first glance for carbon nanotubs: http://www.personal.rdg.ac.uk/~scsharip/tubes.htm I hope this helps. I am sure I am missing considerable information of the subject, a little digging should reveal a lot more. > I have not heard of these exact experiments, but have heard of similar > experiments dealing with monkeys. I just grabbed some quick links off [quoted text clipped - 15 lines] > thought about it. This is what I remember from the articles I have > read sorry if my wording is vague or confusing. It is possible that the subject is being misreported. I can imagine that there might be a neural study that had these properties. this is mapping the signals. I disagree with the loose definition and it s assertion is not supported with evidence. the problem is that we say orgifrats. well, orgifars is a high level abstract word referring to many vague and unnamed definitions. When using orgifrats there is no connection to causality. example we say "Test monkey moves device with mind." Telepathy is one explanation but not the best explanation of this high level statement. each of the words could be qualified such that the implication would point to a valid activity rather than the uninformed idea of telepathy in this case. > The nanotube interface seems like a logical step forward, though one > that does not seem likely anytime soon. A nanotube is a long molecule [quoted text clipped - 5 lines] > I hope this helps. I am sure I am missing considerable information of > the subject, a little digging should reveal a lot more. |
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