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Software Science Hardware Technology

Paralyzed Individuals Operate Tablet With Brain Implant (ieee.org) 61

Last year, a study from the BrainGate consortium reported that a brain-computer interface (BCI) enabled a paralyzed man to type up to eight words per minute via thoughts alone. Now, according to new results from a BrainGate2 clinical trial, the same BCI was used to help three participants operate an off-the-shelf tablet. IEEE Spectrum reports: All three participants suffer from weakness or loss of movement in their arms due to amyotrophic lateral sclerosis (ALS, also called Lou Gehrig's disease) or spinal cord injury. Each received the brain implant, an array of microelectrodes, as part of the BrainGate2 clinical trial. For this particular study, decoded neural signals from the implant were routed through an industry-standard Human Interface Device protocol, providing a virtual mouse. That "mouse" was paired to a Google Nexus 9 tablet via Bluetooth.

Each participant was asked to try out seven common apps on the tablet: email, chat, web browser, video sharing, music streaming, a weather program and a news aggregator. The researchers also asked the users if they wanted any additional apps, and subsequently added the keyboard app, grocery shopping on Amazon, and a calculator. The participants made up to 22 point-and-click selections per minute and typed up to 30 characters per minute in email and text programs. What's more, all three participants really enjoyed using the tablet.

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Paralyzed Individuals Operate Tablet With Brain Implant

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  • Good start (Score:5, Insightful)

    by Luckyo ( 1726890 ) on Wednesday November 21, 2018 @09:23PM (#57682900)

    That sounds very interesting. If the accuracy and speed of "mental control over object in two dimensional space" gets high enough and doesn't interfere with normal motor control in healthy people, I can see this becoming standard for pretty much anyone that needs to use complex machinery of any kind.

    • Re:Good start (Score:5, Interesting)

      by Anonymous Coward on Wednesday November 21, 2018 @09:38PM (#57682938)

      Some of the original work from BrainGate had a problem; the connection between the neurons and the embedded chip would decay over time. This was due to scar tissue that would form around the microscopic "readers" that contacted the neurons.

      I wonder if this generation of tech has solved that problem.

      • by Luckyo ( 1726890 )

        I'm not up to date on the bleeding edge of medical science, but from what limited information I have, we have ways of reducing/slowing down formation of scar tissue and "hiding" it in certain kinds of wounds and tissues, but nothing that would prevent scar tissue from forming.

        If anyone has a better idea, please tell us about it.

        • Use fiber-optics so that never touch the cells you're monitoring. Perhaps genetically engineer the brain cells you want to monitor to fluoresce when firing. If you want two-way communication, then you engineer them to make the cell walls produce chloroplasts in two different colors, so that you can shine one color light on them to make them fire, and another to suppress firing.

          The fun part? The chloroplast thing has actually already been done - watched an interesting TED talk years ago. They used the abili

          • by Luckyo ( 1726890 )

            Considering the complexity of the system we call "human brain", I would suggest that attempting to genetically engineer its cells is very, VERY far away. We don't really understand how it actually works yet.

            • As I said - it's already been done. Years ago.

              • by Luckyo ( 1726890 )

                If that was done years ago, we'd be hearing about it all the time, as this would be a massive breakthrough both in understanding of how brain works and in genetic engineering.

                Seeing how opposite is true, I'm calling BS.

  • by Anonymous Coward

    Is our world so broken that all we can do is think in terms of mouse movements and keyboard apps?

    If you can control a mouse, you can train your brain to produce binary coded character streams. Yes, it will take some training. Not unlike learning how to touch type. But imagine how powerful a brain interface could be if you could think text instead of the painfully slow process of moving a mouse from button to button.

    • by Anonymous Coward

      It took a ridiculously long time for this device to appear considering all the underlying tech has been dirt cheap for about 5-7 years now, but I guess that's the blink of an eye in a highly regulated bureaucratic behemoth. Speaking of which, what probably makes this possible is the correlation between "mouse go here" and looking at it (focusing/moving your eyes). Eye movements produce very 'loud' easily readable brain waves. ALS is a neurodegenerative disease so there is probably a difference between ALS b

    • Re: (Score:3, Funny)

      by Anonymous Coward

      If you can control a mouse, you can train your brain to produce binary coded character streams

      This is true. The human mind is capable of amazing feats, especially when required to overcome some handicap or hardship.

      For example, Helen Keller was able to become highly educated and earn a degree from a prestigious university, despite being from Alabama.

    • If you can control a mouse, you already have the interface, all you need is the app. One mouse movement in any of 8 different directions, you can output 3 bits at a time. And no reason you have to limit it to just 8 directions.

  • Comment removed based on user account deletion
    • Why yes. Give your ditch digger a backhoe, and that just enables you to exploit him for more work.

      If you’re going to be a socialite, at least don’t be a Luddite socialist. That just assures that your ideas will never be tried out in a real country.

  • That's great. Now I want them to be able operate a http://avp.wikia.com/wiki/P-5000_Powered_Work_Loader [wikia.com], so they can move around and send those aliens back where they came from.

  • It's sad what political correctness is doing to the English language. We used to have a perfectly good words for "participants with tetraplegia" or "persons living with visual disability".

  • Someone should set up a go-fund-me to get more tablets. Maybe those people who helped that homeless guy -- they have a proven track record.

After all is said and done, a hell of a lot more is said than done.

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