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Paralyzed Man Uses Brain Implant To Type Eight Words Per Minute (ieee.org)

A study published in the journal eLife describes three participants that broke new ground in the use of brain-computer interfaces (BCIs) by people with paralysis. One of the participants, a 64-year-old man paralyzed by a spinal cord injury, "set a new record for speed in a 'copy typing' task," reports IEEE Spectrum. "Copying sentences like 'The quick brown fox jumped over the lazy dog,' he typed at a relatively blistering rate of eight words per minute." From the report: This experimental gear is far from being ready for clinical use: To send data from their implanted brain chips, the participants wear head-mounted components with wires that connect to the computer. But Henderson's team, part of the multiuniversity BrainGate consortium, is contributing to the development of devices that can be used by people in their everyday lives, not just in the lab. "All our research is based on helping people with disabilities," Henderson tells IEEE Spectrum. Here's how the system works: The tiny implant, about the size of a baby aspirin, is inserted into the motor cortex, the part of the brain responsible for voluntary movement. The implant's array of electrodes record electrical signals from neurons that "fire" as the person thinks of making a motion like moving their right hand -- even if they're paralyzed and can't actually move it. The BrainGate decoding software interprets the signal and converts it into a command for the computer cursor. Interestingly, the system worked best when the researchers customized it for each participant. To train the decoder, each person would imagine a series of different movements (like moving their whole right arm or wiggling their left thumb) while the researchers looked at the data coming from the electrodes and tried to find the most obvious and reliable signal. Each participant ended up imagining a different movement to control the cursor. The woman with ALS imagined moving her index finger and thumb to control the cursor's left-right and up-down motions. Henderson says that after a while, she didn't have to think about moving the two digits independently. "When she became facile with this, she said it wasn't anything conscious; she felt like she was controlling a joystick," he says. The man with the spinal cord injury imagined moving his whole arm as if he were sliding a puck across a table. "Each participant settled on control modality that worked best," Henderson says. You can watch a video about the study here.

40 comments

  1. this is just the beginning... by Anonymous Coward · · Score: 0

    "resistance is futile..."

    1. Re:this is just the beginning... by Anonymous Coward · · Score: 0

      Exactly. Borgean masturbation. Just imagine. You can now flip to that clip on the other side of the galax^H^H^H^H^H^H SAN without ever interrupting your rhythm. 'Cuz there's nothing worse than having to get precious bodily fluids and lube all over the keyboard.

    2. Re: this is just the beginning... by dougdonovan · · Score: 1

      8 words a minute he's hired thats awesome

  2. Goals by christoofar · · Score: 4, Funny

    Bet he could type faster if he switched to emacs.

    1. Re:Goals by Anonymous Coward · · Score: 0

      I dunno about that...vi and vim only require one or two gestures to do the same.

      Dude, you are good.

    2. Re:Goals by gijoel · · Score: 1

      He should have used Dvorak brain scanner. Sure it involved implanting 2-ton liquid helium magnets in his head, but it's so much more intuitive to use.

    3. Re:Goals by mwvdlee · · Score: 1

      It would only require a few years of retraining at most, after that they'd be atleast 10% faster!

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    4. Re:Goals by Anonymous Coward · · Score: 0

      maybe help the dude a bit with some predictive text selections.

  3. Those three were paralyzed by b783719 · · Score: 1

    But now they can do more. I approve the research.

  4. His first eight words... by Anonymous Coward · · Score: 0

    "Men's room for men, ladies room for women"

  5. Paralyzed Woman, not Man by Anonymous Coward · · Score: 0

    Unless you meant 'man' in the generic sense of humanity.

    Interesting article. I'm not paralyzed and kind of want a brain implant.

  6. Son of a bitch by JustAnotherOldGuy · · Score: 2

    Maybe it's time for a brain implant because that son of a bitch can type faster than I can.

    --
    Just cruising through this digital world at 33 1/3 rpm...
    1. Re:Son of a bitch by Anonymous Coward · · Score: 0

      The paper lists a minimum of 10 characters per minute in figure 4. Why does the article call out 8 words per year?

    2. Re:Son of a bitch by Anonymous Coward · · Score: 0

      I had XKCD's substitutions plugin turned on. All instances of "minutes" changed to "years". It did make life more exciting, but also more confusing.

  7. beter tahn i can do by turkeydance · · Score: 2

    cheers

  8. Size of a what? by Anonymous Coward · · Score: 0

    "The tiny implant, about the size of a baby aspirin"

    Is 'baby aspirin' supposed to be a unit of measure we are all familiar with? WTF is that even?

    1. Re:Size of a what? by Notabadguy · · Score: 4, Funny

      "The tiny implant, about the size of a baby aspirin"

      Is 'baby aspirin' supposed to be a unit of measure we are all familiar with? WTF is that even?

      That would be 1.7 × 10-17 football fields, or 6.8 x 10-175 libraries of congress.

    2. Re:Size of a what? by JustAnotherOldGuy · · Score: 1

      "The tiny implant, about the size of a baby aspirin"

      Is 'baby aspirin' supposed to be a unit of measure we are all familiar with? WTF is that even?

      Baby aspirin is typically sold at a dose of 81mg per tablet. Converted to nanoseconds at the speed of light it's 8.1e-5 mm, or 72 trillionths of a furlong.

      --
      Just cruising through this digital world at 33 1/3 rpm...
    3. Re:Size of a what? by AmiMoJo · · Score: 1

      That would be 1.7 Ã-- 10-17 football fields

      American or soccer?

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    4. Re:Size of a what? by Anonymous Coward · · Score: 0

      That would be 1.7 Ã-- 10-17 football fields

      American or soccer?

      American, obviously. They don't measure things in "football fields" in Europe or anywhere else in the world. When people say "mile" we don't ask if British or Roman.

    5. Re:Size of a what? by Nidi62 · · Score: 1

      That would be 1.7 Ã-- 10-17 football fields

      American or soccer?

      American, obviously. They don't measure things in "football fields" in Europe or anywhere else in the world. When people say "mile" we don't ask if British or Roman.

      Yep. If it was soccer it would be measured in "pitches". However,to further complicate things there is also an "American" pitch, which is roughly 21/125 of a "European" pitch

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    6. Re:Size of a what? by Anonymous Coward · · Score: 0

      Reminds me of the arbitrary measurement trivia offered when one adds steps to the Wii U exercise game.

      "You have added 10,000 steps to your climb. That's equivalent to 2,989 Emperor Penguins stacked on top of each other!!"

      Other comparative measurements offered too, such as tin cans, arch de triumph, Indy 500 laps, etc.
      http://relentlessforwardcommotion.com/wp-content/uploads/2013/11/Wii-U-Everest-2.png

    7. Re:Size of a what? by angel'o'sphere · · Score: 1

      Ofc. we say "soccer fields", and some people might mistranslate into english and say "football fields", however it is only used in cases where laymen are addressed, e.g. "the flight deck of a carrier has the size of a soccer field" (which is wrong, but never mind ;D )

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  9. Hawking by Anonymous Coward · · Score: 0

    Said to be enraged at his old tech now. Vows to dump Apple and go Microsoft ALL THE WAY!

  10. Someone.... scratch... my... left... by Anonymous Coward · · Score: 0

    Ok I want one.

  11. pffft by Anonymous Coward · · Score: 0

    Pfft. I can type faster than that.

  12. Slashdot advertising by hackwrench · · Score: 1

    There is a large ad for curry that will not go away after waiting the now customary time for Slashdot ads to go away.

  13. Re:Post the 8 words Slashdot! by webmistressrachel · · Score: 4, Insightful

    No, I doubt it. These people aren't necessarily suicidal, and often have perfect eyesight and hearing, but no motor control. This man just got hope for the first time since whatever happened to him, leaving him in this state.

    This is a truly beautiful, and humane use for computing. Please don't be so negative, this is an outstanding achievement, on a par with the fact that ancient humans would pre-chew food for members of the tribe with no teeth. It shows we naturally care about each other, and support each other.

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  14. World Paralyzed Typing Championship by Anonymous Coward · · Score: 0

    They'd better get ready.
    The 8 words per minute record will be smashed in no time.

    NOTE: On a more serious note, congrats to all involved with this research. :)

  15. 525600 by Anonymous Coward · · Score: 0

    That's 525600 words/year. We must stop this man.

  16. It's "jumps" by Anonymous Coward · · Score: 0

    The quick brown fox JUMPS over the lazy dog

    Otherwise there's no "s".

  17. Re:Post the 8 words Slashdot! by Anonymous Coward · · Score: 0

    Yep, "Kill him please, kill him please, now please" is what I'd type about you if I were in that guy's condition and read your comment.

  18. Re: Post the 8 words Slashdot! by Anonymous Coward · · Score: 0

    Though I assume you're trolling: go fuck yourself.

  19. compassionate care for ALS (Lou Gehrig's disease) by Anonymous Coward · · Score: 0

    This is an amazing development for the compassionate care for people with ALS (Lou Gehrig's disease). Imagine life with your mind is trapped in your body and no ability to communicate with the world, and you will understand why this is a great breakthrough. Go science!