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Single Neuron Wired To Muscle Un-Paralyzes Monkeys

GalaticGrub writes "A pair of paralyzed monkeys regained the ability to move their arms after researchers wired individual neurons to the monkeys' arm muscles. A team of researchers at the University of Washington temporarily paralyzed each monkey's arm, then rerouted brain signals from a single neuron in the motor cortex around the blocked nerve pathway via a computer. When the neuron fired above a certain rate, the computer translated the signal into a jolt of electricity to the arm muscle, causing it to contract. The monkeys practiced moving their arms by playing a video game."

23 of 180 comments (clear)

  1. Sucky job by Hatta · · Score: 5, Funny

    Who's the grad student who had to break those monkeys spines?

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    Give me Classic Slashdot or give me death!
    1. Re:Sucky job by FSWKU · · Score: 4, Funny

      No grad students were involved. They simply told the RIAA that the monkeys were sharing the new Metallica album on all the major P2P networks. The Schutzstaffel...err... RIAA legal team took care of the rest.

      --
      "So after all this, you make my case for me. To end this stalemate, you must die..."
    2. Re:Sucky job by couchslug · · Score: 5, Insightful

      "Who's the grad student who had to break those monkeys spines?"

      The subjects were actually grad students costumed as monkeys.
      Lab monkeys are too valuable to use.

      --
      "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
    3. Re:Sucky job by rockrat · · Score: 5, Insightful

      No one broke the monkeys' spines. The article states that the spinal neurons innervating the wrist muscles were temporarily blocked using a local anesthetic. What's particularly amazing about this study is that the monkeys were able to quickly learn to control their wrists using the cortical neurons that the computer was monitoring, even if those neurons were not involved in control of the wrist before paralysis.

      I'm a friend of the paper's author and am certain that neither the researchers nor any sane review board would have allowed monkeys to be permanently injured to perform this study; it just wouldn't be necessary.

    4. Re:Sucky job by Kashgarinn · · Score: 5, Funny

      "ooh ooh ooh" ?

      - Did one of the monkeys escape and start posting on slashdot?

  2. Yes by eclectro · · Score: 4, Funny

    But can you teach them to type??

    --
    Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
    1. Re:Yes by arrenlex · · Score: 5, Funny

      But can you teach them to type??

      Of course; that's how they expect their thesis to be written.

    2. Re:Yes by owlnation · · Score: 5, Insightful

      But can you teach them to type??

      Yes. I offer Wikipedia as proof.

  3. Better title would be.... by wealthychef · · Score: 5, Insightful

    "Monkeys learn to play video games." I actually think that's more amazing.

    --
    Currently hooked on AMP
    1. Re:Better title would be.... by Anonymous Coward · · Score: 5, Funny

      That gold won't farm itself...

    2. Re:Better title would be.... by Yvan256 · · Score: 4, Interesting

      Indeed, while that neuron surgery thing sounds amazing, I was more shocked at the fact that monkeys actually play videogames.

      Then I realized... Are the monkeys smarter than we thought or are we just dumberer than we think we aren't not, now what I meen?

    3. Re:Better title would be.... by Anonymous Coward · · Score: 4, Funny

      I bet they've already learned how to get around DRM.

    4. Re:Better title would be.... by guyminuslife · · Score: 5, Funny

      You were killed by b33st13b0y.
      b33st13b0y: lol pwned
      b33st13b0y: ur mom is ghey
      b33st13b0y: suk it

      I think we've known this for quite some time.

      --
      I don't believe in time. It's a grand conspiracy designed to sell watches.
  4. Ob. by Facetious · · Score: 5, Funny

    It was the best of times, it was the blurst of times. Blurst of times! Stupid monkey!

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    Let us not become the evil that we deplore.
  5. Amazing by Profane+MuthaFucka · · Score: 5, Funny

    Amazing! This is truly a wonderful time to be a monkey.

    --
    Fascism trolls keeping me up every night. When I starts a preachin', he HITS ME WITH HIS REICH!
  6. Re:hallelujah by digitalchinky · · Score: 4, Interesting

    Certainly they may be jumping for joy. Though there is more to it than just wiring an electrode to a muscle before the fat lady can sing again.

    A functional limb without any sense of its location in relation to the body is a problem, one without feeling is also a problem. Did they think about electrodes for everything else the nervous system is responsible for too?

  7. Correlation != Causation by Anonymous Coward · · Score: 4, Funny

    The researchers who published this should have 'Correlation is not causation' written in giant billboards in front of their houses.

    Just 2 monkeys regained movement after the experiment does not mean that rerouting brain signals past blocked nerve pathways using a single neuron controlled by a computer did anything at all. They should have waited until they had ruled out other possibilities, like divine intervention, before publishing results. For shame!

  8. Seems ripe for exploitation by durnurd · · Score: 5, Funny

    Also, he adds, the system would ideally be fully implantable. Whenever wires protrude through the skin, as they did in the monkey experiments, they introduce risks of infection and disruption. The group plans to tackle this problem with miniaturized components and wireless technology.

    Seems ripe for exploitation...
    "...Quit hitting yourself! Quit hitting yourself..."

    --
    --Edward Dassmesser
  9. Sooo... What if they connected a human's brain by CrazyJim1 · · Score: 5, Interesting

    Can a human control a monkey arm?
    If so, can we control its entire body?
    If so, can we do it remotely, through a wire to a cell phone.
    If so, how long until someone decides to use monkeys as freedom fighters?
    Yes, science should never go down this path, but hey, it is still possible to look down the paths

  10. Shock the Monkey by afxgrin · · Score: 5, Funny

    Whoever tagged this article "shockthemonkey" is awesome.

  11. Re:hallelujah by rockrat · · Score: 4, Informative

    It's certainly true that proprioception (the ability to sense joint location) and sensation of muscle tension are useful feedback systems in coordinating limb movements. It's well known in the field (I'm a neuroscientist), however, that several neurological conditions rob patients of these sensations and they're still able to move their limbs effectively (though not perfectly). I'd guess that a patient who was paralyzed wouldn't mind being able to move their arms again, even if they couldn't feel where they were without looking.

  12. sweet!! by X0563511 · · Score: 4, Insightful

    Am I the only one who's more interested in the medical significance of this, instead of the silly aspect of monkey-gaming? Holy crap guys, use your brains.

    This means that we have the potential to repair neural damage, potentially severe damage as well!

    I see particular use with pacemakers. Rather than just pulse the heart at a given frequency, read what the brain wants the heart to do, and do that! You could do the same thing for the lungs as well, although I'm not sure how often someone who damages that nerve makes it to the hospital in time.

    Other use could be with amputation victims. Helping restore function to reattached appendages/digits, or controlling prosthesis...

    I wonder if, further down the line, it would be possible to do this to sensory nerves as well, not just motor control/response...

    --
    For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
  13. Re:Dear God, free us from religion... by g-san · · Score: 4, Insightful

    This is irony:

    God, please protect me from your followers.