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Brain-Machine Interface Isn't Sci-Fi Anymore

85 点作者 kartD超过 7 年前

5 条评论

icoder超过 7 年前
Since he <i>has</i> a hand, how do they discern between the electrical signals picked up from the motor neurons, and the electrical signals created by the muscles (which are a lot stronger)?<p>To compare: some years ago I saw a talk from neuroscience researcher about a locked in patients. Only with great effort they were able to discern a single on&#x2F;off signal from the brain, and only after a lot of practice. I asked why commercial products seemed much further than that, and he explained that these basically pickup subtle nearby (ie from the eye) muscles movements (that locked in patients no longer have), and users only &#x27;believe&#x27; they are controlling the system directly with their brain.
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hprotagonist超过 7 年前
&gt;...whether he has a <i>hand</i> is irrelevant<p>This is probably a reach. At a bare minimum, decoding EMG won&#x27;t work if you <i>never</i> had a hand. If you had an amputation, the means by which your hand was removed will greatly impact the efficacy of this sytem.
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hacker_9超过 7 年前
<i>&quot;He resumes typing. Only this time he is typing on…nothing. Just the flat tabletop. Yet the result is the same: The words he taps out appear on the monitor. The text on the screen is being generated not by his fingertips, but rather by the signals his brain is sending to his fingers. The armband is intercepting those signals, interpreting them correctly, and relaying the output to the computer&quot;</i><p>This is a pretty neat idea, but I feel not being able to see the keyboard is kind of going to ruin this one. Even with touch typing you need some feedback as to where the &#x27;F&#x27; and &#x27;J&#x27; are, and even then you can&#x27;t reach the whole keyboard. I suspect you can work around that with some sort of &#x27;finger swipe&#x27; language though.<p>But what about the mouse? Being able to put your hand on something is lot more comfortable than, for example, using a touchpad on a laptop. The problem with these sort of devices (reminds me of the wii remote) is all the stress is moved to the fingers and wrists, which doesn&#x27;t pay off well in the long run.
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Confiks超过 7 年前
It seems that the article is really careful to never show &quot;those weird armbands sitting between his wrist and his elbows&quot;. Would anyone have an idea what kind of sensors it would require to measure signals traveling through motor nerves? Aside from the question of how to interpret these signals.<p>The site of the CTRL-Labs team shows an impressive list [1] of publications. Only one [2] seems slightly related to to prototype of the article, where they test the role of the motor cortex with different movements in mice.<p>[1] <a href="https:&#x2F;&#x2F;ctrl-labs.com&#x2F;people" rel="nofollow">https:&#x2F;&#x2F;ctrl-labs.com&#x2F;people</a><p>[2] <a href="http:&#x2F;&#x2F;www.cell.com&#x2F;neuron&#x2F;fulltext&#x2F;S0896-6273(17)30594-9" rel="nofollow">http:&#x2F;&#x2F;www.cell.com&#x2F;neuron&#x2F;fulltext&#x2F;S0896-6273(17)30594-9</a>
munin超过 7 年前
I guess Silicon Valley hates it because the research was done by a bunch of academics and government scientists, but they&#x27;ve been working on and successfully demoing a brain interface that can do control and feedback with arms: <a href="https:&#x2F;&#x2F;hub.jhu.edu&#x2F;2016&#x2F;08&#x2F;25&#x2F;prosthetic-arm-sensory-touch&#x2F;" rel="nofollow">https:&#x2F;&#x2F;hub.jhu.edu&#x2F;2016&#x2F;08&#x2F;25&#x2F;prosthetic-arm-sensory-touch&#x2F;</a>
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