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Two Heads Are Better Than One For Brain-Computer Interfaces

FatLittleMonkey writes "My mind to your mind... my thoughts to your thoughts... Researchers at the University of Essex have shown that combining the output from two non-invasive 'brain-computer interfaces,' computer-interpreted EEG signals, led to a much clearer signal of the subjects' intention than the output from a single subject. To test this idea, they had two subjects try to steer a simulated space-ship at a target planet, by thinking of one of eight possible directions. While a single user could achieve 67% accuracy, this jumped to 90% when two minds were combined. Researchers believe the technique also compensates for individual lapses in attention, and thus may have applications in real-world space missions."

40 of 57 comments (clear)

  1. If I'm thinking it by Anonymous Coward · · Score: 1

    If I'm thinking it, you're probably all thinking it too:
    with the addition of another brain it became "crowd intelligence" or "crowd sourced" and is now sufficiently buzzword compliant.

    1. Re:If I'm thinking it by vlm · · Score: 1, Funny

      If I'm thinking it, you're probably all thinking it too:

      yeah the little head teams up with the big head to surf for the best pr0n...

      with the addition of another brain it became "crowd intelligence" or "crowd sourced" and is now sufficiently buzzword compliant.

      Oh. Yeah. That too.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
  2. Wow by Kjella · · Score: 5, Funny

    I think they just proved that 0.33*0.33 = 0.10.

    --
    Live today, because you never know what tomorrow brings
    1. Re:Wow by Brad1138 · · Score: 1

      I knew I read /. for a reason!

      --
      If you could reason with religious people, there would be no religious people
    2. Re:Wow by Anonymous Coward · · Score: 1

      Or that P(A) * P(B) = P(A and B), which isn't always true if A and B are correlated.

    3. Re:Wow by pesho · · Score: 1

      "It is difficult to stay focused on the task at all times. So when a single user has momentary attention lapses, it matters. But when there are two users, a lapse by one will not have much effect, so you stay on target,"

      They correlate inputs from two pilots to improve accuracy, but at the same time in the quote above they assume that the inputs from the pilots would not correlate. Its is not like two pilots in a jet liner would miss something as big as their destination airport.

    4. Re:Wow by Anonymous Coward · · Score: 1

      Thats why everyone told you to use that equation for independent random variables only :P

    5. Re:Wow by foobsr · · Score: 4, Funny
      Its is not like two pilots in a jet liner would miss something as big as their destination airport.

      Not always.

      http://spantax.webs.com/rodolfobay.htm - Quote: "In May 1967, Spantax had received bad press in Germany. To counteract this Rodolfo Bay decided to fly a flight from Palma to Hamburg with German press on board to get good press for the airline. Unfortunately he landed at the wrong airport in Hamburg."

      Yes, it is true, I lived in Hamburg that time. They had big trouble to get the bird into the air again as the runway was way too short.

      CC.

      --
      TaijiQuan (Huang, 5 loosenings)
    6. Re:Wow by BarfooTheSecond · · Score: 1

      But then, what if both inputs are totally divergent. How would they correlate them?
      I think they should free some space in the cockpit for a 3rd pilot...

    7. Re:Wow by pesho · · Score: 1

      This is not going to help much, especially if the choice is not binary. Of course you can vastly increase the number of pilots to reduce the noise. But then again it may just turn into something like this.

    8. Re:Wow by davester666 · · Score: 1

      So this mind-reading contraption has two helmets, one that goes on my head, and the second goes on my penis, and somehow this provides more reliable results than just using the single one on my head?

      Now that's using my dick!

      --
      Sleep your way to a whiter smile...date a dentist!
  3. 20+ years ago by Brad1138 · · Score: 2

    I saw a TV program that showed electrodes connected to one person. That person was able to move an avatar around a 3D environment. Sure doesn't seem like they have come very far...

    --
    If you could reason with religious people, there would be no religious people
    1. Re:20+ years ago by DirtyLiar · · Score: 1

      Wow! Now I can play Ultima ][ with just my mind!

      --

      THINK! It's patriotic

    2. Re:20+ years ago by Ihlosi · · Score: 1
      I saw a TV program that showed electrodes connected to one person. That person was able to move an avatar around a 3D environment. Sure doesn't seem like they have come very far...

      20 years ago, it was fake. Today, it actually works.

  4. Finally by ozduo · · Score: 2

    A positive use for Tasmanian's. Explanation for non Australians found here http://www.utas.edu.au/library/companion_to_tasmanian_history/T/Tas%20reputation.htm

    --
    I got to the chocolate box before you, that's why the hard ones have teeth marks.
  5. Meanwhile, in the lab next door... by wonkey_monkey · · Score: 4, Funny

    While a single user could achieve 67% accuracy, this jumped to 90% when two minds were combined.

    Meanwhile, a lone monkey with an hour's training, a penchant for bananas, and a joystick achieved 99% accuracy.

    --
    systemd is Roko's Basilisk.
    1. Re:Meanwhile, in the lab next door... by peragrin · · Score: 2

      So we replace the bananas with beer and hit 99.9 for the first 3 beers

      --
      i thought once I was found, but it was only a dream.
  6. Pacific Rim: Jaegers by laughingman4929 · · Score: 3, Interesting

    Finally, the giant robots in Pacific Rim make some sense... http://www.youtube.com/watch?feature=player_detailpage&v=2vKz7WnU83E#t=61s

  7. For steering rovers by KeensMustard · · Score: 1
    By future space missions, they mean for steering rovers (from ta): But don't hold your breath, says JPL senior research scientist Adrian Stoica. "While potential uses for space applications exist, in terms of uses for planetary rover remote control, this is still a speculative idea," he says.

    Of course they would have to weigh this against the benefits of giving the rovers better ai for moving from place to place.

  8. Elementary statistics? by gweihir · · Score: 1

    This would only be a surprise if people would all use their brain differently. On this level, they do not. No surprise here.

    --
    Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
    1. Re:Elementary statistics? by jythie · · Score: 2

      That is one of the hot questions in neurology, and one that is far form settled. We still do not have a good idea of how the details vary from person to person... so while perhaps not a 'surprise', it is far from a given.

    2. Re:Elementary statistics? by gweihir · · Score: 2

      Anything they do does require they can calibrate on a single individual. Just taking measurements from two individuals (with each their own calibration) will always be better. That has nothing to do with neurology, that is just signal processing 010.

      --
      Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
  9. Poisson distribution ? by Forget4it · · Score: 1

    http://www.universiteitgroningen.nl/fmns-research/theobio/events/_pdf/ma_eanatureneuro06.pdf
    tells us that Bayesian inference with probabilistic population codes works best if the two channels/ two brains are spiking with a Poisson distribution.

    Talking about bable fish ... didn't Zaphod Beeblebrox think like that too. http://en.wikipedia.org/wiki/Zaphod_Beeblebrox

    --
    Artificial intelligence is the study of how to make real computers act like the ones in the movies.
  10. Will this work at all in the real world? by mianne · · Score: 2

    Or are both pilots going to be texting and surfing for pr0n with the assumption that the other one is taking control?

    "It must have been a computer glitch which caused us to run out of fuel and crash into the Atlantic on our flight from Houston to Toledo."

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    Javascript, cookies, flash, and ActiveX must be enabled in order to view this sig.
    1. Re:Will this work at all in the real world? by AVee · · Score: 1

      Welcome to 'Democratic Airways', the airline which frees you from the dictatorship of pilots.

    2. Re:Will this work at all in the real world? by Spottywot · · Score: 1

      Or are both pilots going to be texting and surfing for pr0n with the assumption that the other one is taking control?

      "It must have been a computer glitch which caused us to run out of fuel and crash into the Atlantic on our flight from Houston to Toledo."

      You haven't got much faith in people have you? You must be a manager :)

      --
      In a cybernetic fit of rage she pissed off to another age...
    3. Re:Will this work at all in the real world? by CAIMLAS · · Score: 1

      If the people running my company's operations is any indication, they're not only going to be jerking off, they're going to be blaming the shortcomings on the working person...

      --
      ~/ssh slashdot.org ssh: connect to host slashdot.org port 22: too many beers
  11. Zaphod Beeblebrox by foobsr · · Score: 1
    Did not know yet that Zaphod Beeblebrox was probably Tasmanian.

    CC.

    --
    TaijiQuan (Huang, 5 loosenings)
    1. Re:Zaphod Beeblebrox by Kittenman · · Score: 1

      Zaphod? He's just this guy, you know...

      --
      "The greatest lesson in life is to know that even fools are right sometimes" - Winston Churchill
  12. Re:2 are better than 1 - ancient wisdom by foobsr · · Score: 2, Insightful
    Would have never thought that a quote from The Bible would hit me that hard, but my wife died Jan 2 - so.

    CC.

    --
    TaijiQuan (Huang, 5 loosenings)
  13. I always .... by PPH · · Score: 1

    ... let my little head do the thinking when I'm surfing for pr0n.

    --
    Have gnu, will travel.
  14. Re:Guillermo del Toro already knows this by tloh · · Score: 1
    --
    Stay sentient. Don't drink bad milk.
  15. Re:2 are better than 1 - ancient wisdom by Anonymous Coward · · Score: 1

    Not to mention the whole cord of three strands verse. Clearly implying that Menage a Trois is a good thing!

  16. Re:2 are better than 1 - ancient wisdom by Runaway1956 · · Score: 1

    God's way is what? Capitalism? I don't think so. If God subscribed to any ism's, communism would be as likely as any. At it's core, before the addition of greed and corruption, communism intends to take care of everyone, and to eliminate the rich, the poor, leaving only a middle class. "Give what you're capable of giving, and take what you need" almost sounds biblical. Almost.

    --
    "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
  17. Re:2 are better than 1 - ancient wisdom by alexgieg · · Score: 1

    God's way is what? Capitalism? I don't think so. If God subscribed to any ism's, communism would be as likely as any.

    Actually, a ton of Christian philosophers, economists etc. have tried to answer that. The best result of their attempts, as far as I know at least, is that of what we'd call a "3rd way", called "Distributism".

    Distributists agree with communists in the centrality of the means of production, and that it shouldn't be in the hands of a few for them to use it to exploit the masses. Contrary to communists, however, they also don't think it should be in the hands of a single one (the state), but rather spread among as many owners as possible. Thus, they also agree with capitalists in the you must have and preserve private property. But goes against it in that the state should prevent such private ownerships from aggregating into monopolies. They also place a strong focus on small communities, and think that social security must be provided locally, by the well of members of a community to the less well of, thus going against both liberals, who think it must be provided by a centralized state, and conservatives, who think it must be provided by the individual alone. And they think the concept of employment as practiced today is fundamentally flawed, preferring cooperatives of free workers who own their own means of productions to that of employees (who don't) working for someone else (who does).

    The best analogy I can think to this is of a world composed of unions who are also companies and who provide social security for their members. In other words, the ideal social model of Christianity would be a world of professional guilds.

    The Distributist Magazine offers lots of information. See also the Wikipedia page.

    --
    Conservatism: (n.) love of the existing evils. Liberalism: (n.) desire to substitute new evils for the existing ones.
  18. So they've proven by DirtyLiar · · Score: 1

    That two antenna's are like 1 larger (more sensitive) antenna.

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    THINK! It's patriotic

  19. Just immagine! by DirtyLiar · · Score: 1

    Hands free porn surfing!

    --

    THINK! It's patriotic

  20. Re:2 are better than 1 - ancient wisdom by Runaway1956 · · Score: 1

    That's very interesting. I've never heard of distributism before - maybe I lead a sheltered life or something. (That's a joke - I've led anything but a sheltered life, LMAO)

    Only problem I see, as I skim the surface, is that I'm quite anti-Catholic. But, the philosophy looks good. I need to spend some time looking at this. Note, I don't say "spend some time studying", merely looking. I'm to damned old to actually start studying economics, nor am I especially interested.

    I do know that where cooperatives are permitted and encouraged, they seem to do well. Those I know about include credit unions, farmer's coops, and rural electric utilities. Members actually have a stake in those businesses, and they might find a small personal loss acceptable, if they know that the loss is going to a business in which they hold an interest.

    Personally, I get a small payment from the electric coop every year. It usually equals a week or so of electric usage. Errrr - maybe five days, I never actually did the math.

    Thanks for the links!

    --
    "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
  21. Re:2 are better than 1 - ancient wisdom by alexgieg · · Score: 1

    Only problem I see, as I skim the surface, is that I'm quite anti-Catholic. But, the philosophy looks good.

    Yep. I like to make a distinction between "Catholicism the religion" and "Catholicism the philosophy". They overlap quite a bit but one can be taken without the other and the later is much more interesting and universally applicable than the former. I myself am not Catholic, but I do absorb quite a bit of their philosophy. After centuries of very serious intellectual development it acquired a "solidity" that most alternatives lack. As such, it's a joy to study for those so inclined, even if they disagree with it in many things (or specially when they disagree -- we in the humanities are weird like that).

    --
    Conservatism: (n.) love of the existing evils. Liberalism: (n.) desire to substitute new evils for the existing ones.
  22. Re:2 are better than 1 - ancient wisdom by davidwr · · Score: 1

    My condolences on your loss.

    --
    Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.