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Thread: Brown University creates first wireless, implanted brain-computer interface

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    Warmonger Nacho-Libre's Avatar
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    Default Brown University creates first wireless, implanted brain-computer interface

    Brown University creates first wireless, implanted brain-computer interface

    Researchers at Brown University have succeeded in creating the first wireless, implantable, rechargeable, long-term brain-computer interface. The wireless BCIs have been implanted in pigs and monkeys for over 13 months without issue, and human subjects are next.

    We’ve covered BCIs extensively here on ExtremeTech, but historically they’ve been bulky and tethered to a computer. A tether limits the mobility of the patient, and also the real-world testing that can be performed by the researchers. Brown’s wireless BCI allows the subject to move freely, dramatically increasing the quantity and quality of data that can be gathered — instead of watching what happens when a monkey moves its arm, scientists can now analyze its brain activity during complex activity, such as foraging or social interaction. Obviously, once the wireless implant is approved for human testing, being able to move freely — rather than strapped to a chair in the lab — would be rather empowering.

    Brown’s wireless BCI, fashioned out of hermetically sealed titanium, looks a lot like a pacemaker. (See: Brain pacemaker helps treat Alzheimer’s disease.) Inside there’s a li-ion battery, an inductive (wireless) charging loop, a chip that digitizes the signals from your brain, and an antenna for transmitting those neural spikes to a nearby computer. The BCI is connected to a small chip with 100 electrodes protruding from it, which, in this study, was embedded in the somatosensory cortex or motor cortex. These 100 electrodes produce a lot of data, which the BCI transmits at 24Mbps over the 3.2 and 3.8GHz bands to a receiver that is one meter away. The BCI’s battery takes two hours to charge via wireless inductive charging, and then has enough juice to last for six hours of use.

    One of the features that the Brown researchers seem most excited about is the device’s power consumption, which is just 100 milliwatts. For a device that might eventually find its way into humans, frugal power consumption is a key factor that will enable all-day, highly mobile usage. Amusingly, though, the research paper notes that the wireless charging does cause significant warming of the device, which was “mitigated by liquid cooling the area with chilled water during the recharge process and did not notably affect the animal’s comfort.” Another important factor is that the researchers were able to extract high-quality, “rich” neural signals from the wireless implant — a good indicator that it will also help human neuroscience, if and when the device is approved.

    Moving forward, the wireless BCI is very much a part of BrainGate — the Brown University research group that’s tasked with bringing these neurological technologies to humans. So far, the pinnacle of BrainGate’s work is a robotic arm controlled by a tethered BCI, which paralyzed patients can use to feed themselves (video embedded below). While the wireless BCI isn’t approve for human use (and there’s no indication that they’re seeking approval yet), it was designed specifically so that it should be safe for human use.

    The Brown researchers now intend to develop a different version of the device to help them study the motor cortex of an animal with Parkinson’s disease. They are also working on reducing the device’s size, improving its safety and reliability, and increasing the amount of data it can transmit — for the eventual goal of equipping those with movement disabilities, or elective transhumanists, with a wireless brain-computer interface.

    http://www.extremetech.com/extreme/1...m4w.hackernews

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    One step closer to real augmentations...

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    Senior Member twinblade's Avatar
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    Quote Originally Posted by Nacho-Libre View Post

    One step closer to real augmentations...
    One step closer to manchurian candidates

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    **** you 20122. how goes does gaz type drunk? dricl. man Hellfish's Avatar
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    Quote Originally Posted by twinblade View Post
    One step closer to manchurian candidates
    One step closer to never having to take a math class ever again.

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    Senior Member EdisonTrent's Avatar
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    Quote Originally Posted by Hellfish View Post
    One step closer to never having to take a math class ever again.
    One step closer to knowing Kung-Fu.

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    Senior Member twinblade's Avatar
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    Quote Originally Posted by Hellfish View Post
    One step closer to never having to take a math class ever again.
    Imagine the next generation of p*rn, where people would conjure up some crazy stuff involving their favourite celebrities, record it on DVRs and put it up on the internet. It will happen, sooner or later.

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    Senior Member Breakfast in Vegas's Avatar
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    One step closer to the apocalypse.

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    Senior Member kawaiku's Avatar
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    Wouldn't be surprised if various aspects of Ghost in the Shell become a reality like this BCI thingy.


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    The member that no one remembers. IconOfEvi's Avatar
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    How else will I get my augmented eyes to function or rather do special stuff?

    Wouldn't be surprised if various aspects of Ghost in the Shell become a reality like this BCI thingy.
    Dont forget Deus Ex! And now that I think about it, the Megaman series as a whole is humanity's move to this.

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    Sci-Fi films become more and more reality these days.

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    Senior Member Einhander's Avatar
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    It's not like new gizmos of such scale would be free or inexpensive, at least in our lifetime.

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    Cyberpunk is coming to the scene. I really like the idea how you could build mind controlled prosthetic limbs, eyes. With better battery technology exoskeletons/powerarmour could be very much usable tech in future.

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