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Posts with tag Brain-computerInterface

New brain control development could help quadriplegics get around

Sure, we've seen brain power used to give mobility back to the immobile, but a new development in Europe is one-upping current efforts by adding in a hint of artificial intelligence to the tried and true brain-computer interface. The MAIA BCI not only converts signals emitted by the brain into actions -- such moving a wheelchair forward -- it also thinks for itself when needed in order to assist the user in getting where he / she wants to go. Essentially, the individual need only think about going left or forward (for example), and the machine itself will automatically detect obstacles and potential barriers in order to move more efficiently. As it stands, there's still quite a bit of testing to be done before MAIA-based wheelchairs would be available to the public, but researchers are already hoping to integrate said technology into artificial limbs and the like.

[Via Physorg]

Brain2Robot project creates EEG-controlled robot arm


Thought-controlled appendages are far from new, but an international team of researchers have apparently created an apparatus that aims to make the lives of paralyzed individuals a tad easier. The Brain2Robot project utilizes electroencephalograph (EEG) signals in order to give patients the ability to control a robotic arm, which could eventually be used to do everything from hold periodicals to lift a cup of coffee. Reportedly, the arm could be ready for commercial use within just a few years, but there's no mention of an expected price range. Granted, we'd be a bit more excited about all of this if the technology were somehow made mobile, but it's hard to kvetch about a helping hand, regardless.

[Via Primidi]

G-Tec's thought control hat


Hey you. Yeah, you, listen in close; we've seen the future here at CeBIT. If you thought that the idea of controlling your gaming rig with only your mind was just a bit too Tomorrowland, then you haven't laid eyes on the "brain-computer interface" developed by Austria's Guger Tecnologies (g.tec). We're happy to report that in a game of thought-control vs. Engadget man-editor, we were totally pwned at Pong. 10-to-4 if you must know. Our competition sat smug in his stool thinking about where he wanted his paddle to go, as we flailed about helpless with mouse and keyboard in a wake of alpha waves. At least we didn't have to smear gel on our scalp and wear a funny hat -- ha! The system works by cleverly measuring fluctuations in electrical voltage in the brain and then translating them into computer commands. The technology has already been commercialized into the size of an iPAQ Pocket PC for hospitals and research institutes. It costs about $5,000 with a 99 - 100% level of accuracy for "trained subjects." We had our hat handed to us by a person who just started using the system, yesterday. Hell, that's a shorter learning curve than Graffiti. Although the technology shows great promise in controlling prosthetics and assisting the disabled with communications, we found ourselves (and our new best scientist friends, Christoph Guger and Ingo Niedermayer) eagerly discussing its use as a Second Life controller and of course, in robotics. Be sure to click the read link below for all the details; check the gallery for the gore.

Neurochip acts as a second motor cortex

Haven't you ever wished that you had a second motor cortex? If you've suffered a brain injury of some kind, you just might. For the last few years, researchers at the University of Washington have designed and installed a special computer chip attached to the top of monkeys' heads to record the brain's motor cortex nerve signals. This computer chip, dubbed the Neurochip, creates a brain-computer interface that records every movement sent from the motor cortex to the rest of the monkeys' bodies. Then the Neurochip converts those signals into a stimulus that can be fed back to the brain, creating new neural pathways that theoretically could be used if the motor cortex was damaged in some way. We've still got a few questions, like exactly how this happens, how big physically this interface is, and when we should expect human trials. Of course, we've seen previous brain-computer interfaces before, but this one seems a bit more practical than strapping your head to some type of computer. The team published its results in the November 2, 2006 issue of Nature.

Teenager plays Space Invaders with only his brain

While having a robotic assistant play video games for you might sound novel, it's certainly not as thrilling as interacting with the 1s and 0s yourself. A team of researchers, engineers, and students at Washington University in St. Louis have crafted a brain-computer interface system that allowed a 14-year old gamer suffering from epilepsy to cruise through the first two levels of Space Invaders using only his imagination. Rather than picking up an Xbox 360 and perusing through the Xbox Live Arcade, the crew went back to their roots and programmed an Atari 2600 to interface with the brain-sensing apparatus. The headgear boasted a grid of sensors that monitored "electrocorticographic activity" from the brain's surface to detect signals based on thought processes that were going on. By calibrating his thoughts with video game triggers, the teenager was able to learn the ropes "almost instantaneously," and had no qualms demolishing the competition while twiddling his thumbs. The group plans to use this successful experiment to further understand the mysterious signals of the mind and give physically disabled individuals a chance to show of their mental sharpness, but we're hoping to see this thing bundled in with the sure-to-be-delayed PlayStation 8 that should hit shelves sometime before 2040 2050.

[Via MedGadget]



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