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Bionic arms!!!
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PostPosted: Thu Dec 18, 2014 9:39 pm    Post subject: Bionic arms!!! Reply with quote

Yep, controlled by his mind



http://www.msn.com/en-us/news/technology/double-amputee-is-first-man-to-control-two-robotic-arms-with-his-mind/ar-BBgXYfB
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"We expected him to exceed performance compared to what he might achieve with conventional systems, but the speed with which he learned motions and the number of motions he was able to control in such a short period of time was far beyond expectation.

“What really was amazing, and was another major milestone with MPL control, was his ability to control a combination of motions across both arms at the same time. This was a first for simultaneous bimanual control."

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PostPosted: Fri Dec 19, 2014 2:09 am    Post subject: Reply with quote

Unfreakinreal! Here's a cool video about it that I just found:
https://www.youtube.com/watch?v=9NOncx2jU0Q
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PostPosted: Mon Dec 22, 2014 8:49 pm    Post subject: Reply with quote

See? Converting ourselves into cyborgs our next logical step towards progress as a species. It won't take long to convert the arms into legs, get someone to learn to control them, and then paraplegics can once again regain full mobility.

Obviously, we cannot fully replace most organic parts until we can figure out how to pump blood and circulate oxygen to the spinal cord and brain, allowing the connections to the external limbs to be maintained, but once sufficient artificial hearts and lungs are designed we can remove everything except the central parts and still have a functional human. I am not up-to-date on the latest advances with artificial organs but I know we have hearts so someone else will have to fill me in on where we are with artificial lungs.

I do have to admit that being connected to artificial lungs would probably be weird, at first. Not receiving any nerve input from the diaphragm or lungs themselves would give the feeling of "not being able to breathe" even though oxygen is being dissolved into the blood. This would be terribly disconcerting until you get used to it, I suppose, and that presumes that we can get used to it. Of course, we may have phantom lungs and muscles--we feel like we are inhaling and exhaling even though we really aren't. That is all mere speculation, though--I don't have any cyborg parts (even though I want some).

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PostPosted: Fri Apr 10, 2015 5:58 pm    Post subject: Reply with quote

Cyborgs RULE!
I don't like full-digital, I don't like death...
Here's a body part:

http://www.sciencedaily.com/releases/2015/04/150409162234.htm

I'm still trying to relocate a thing I saw on a new sensor/electrode that is flexible...so it works better in brain and meat, which is squishy...has basically zero signal loss, and is fine enough [or nearly so] that it can interact with single neurons.
[[I thing the material was a cousin of graphene]].

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PostPosted: Mon Apr 13, 2015 4:41 am    Post subject: Reply with quote

So how long before anybody who loses an arm can get one of these...?

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PostPosted: Sat Jun 27, 2015 4:08 pm    Post subject: Reply with quote

A bit more on the cyborg track:
http://ki.se/en/artifical-neuron-mimicks-function-of-human-cells

Also saw a thing on stem cells---apparently part of the problems with the treatments is that the stems:
A) Very often die/are killed off before they start making the desired tissue in the patient.
B) Turn into some weird tissue/cancer lump/thing instead of [in addition to?] the desired tissue.

But now they've had what may be a breakthrough...they might not need to put in the stem cells at all. Instead, the repair/regrowth/regeneration depends on messengers the cells send out, not the stem cells themselves.
So they might be able to just vat-grow the stem cells, harvest the messengers, and get the patient to heal/regrow the tissue. [[the blurb was very short on details and description, but they had success with heart tissue---and heart tissue is notoriously lacking in self-repair abilities.]]

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PostPosted: Thu Jul 09, 2015 8:29 pm    Post subject: Reply with quote

Another step in the right direction: researchers linked three monkeys' brains into a "brainet". Individually, each monkey could control the arm in only one dimension but by coordinating their efforts they were able to move the arm efficiently.

Quote:
Two heads are better than one, and three monkey brains can control an avatar better than any single monkey. For the first time, a team has networked the brains of multiple animals to form a living computer that can perform tasks and solve problems.

If human brains could be similarly connected, it might give us superhuman problem-solving abilities, and allow us to communicate abstract thoughts and experiences. "It is really exciting," says Iyad Rahwan at the Masdar Institute in Dubai, UAE, who was not involved in the work. "It will change the way humans cooperate."

The work, published today, is an advance on standard brain-machine interfaces – devices that have enabled people and animals to control machines and prosthetic limbsMovie Camera by thought alone. These tend to work by converting the brain's electrical activity into signals that a computer can interpret.

Miguel Nicolelis at Duke University Medical Center in Durham, North Carolina, and his colleagues wanted to extend the idea by incorporating multiple brains at once. The team connected the brains of three monkeys to a computer that controlled an animated screen image representing a robotic arm, placing electrodes into brain areas involved in movement.

By synchronising their thoughts, the monkeys were able to move the arm to reach a target – at which point the team rewarded them with with juice.

Then the team made things trickier: each monkey could only control the arm in one dimension, for example. But the monkeys still managed to make the arm reach the target by working together. "They synchronise their brains and they achieve the task by creating a superbrain – a structure that is the combination of three brains," says Nicolelis. He calls the structure a "brainet".

These monkeys were connected only to a computer, not one another, but in a second set of experiments, the team connected the brains of four rats to a computer and to each other. Each rat had two sets of electrodes implanted in regions of the brain involved in movement control – one to stimulate the brain and another to record its activity.

The team sent electrical pulses to all four rats and rewarded them when they synchronised their brain activity. After 10 training sessions, the rats were able to do this 61 per cent of the time. This synchronous brain activity can be put to work as a computer to perform tasks like information storage and pattern recognition, says Nicolelis. "We send a message to the brains, the brains incorporate that message, and we can retrieve the message later," he says.

This is the way parallel processing works in computing, says Rahwan. "In order to synchronise, the brains are responding to each other," he says. "So you end up with an input, some kind of computation, and an output – what a computer does." Dividing the computing of a task between multiple brains is similar to sharing computations between multiple processors in modern computers, he says.

This is incredible," says Andrea Stocco at the University of Washington in Seattle, who was not involved in the project. "We are sampling different neurons from different animals and putting them together to create a superorganism."

Things could get even more interesting once we are able to connect human brains. This will probably only be possible when better non-invasive methods for monitoringMovie Camera and stimulating the brain have been developed.

"Once brains are connected, applications become just a matter of what different animals can do," says Stocco. All anyone can probably ask of a monkey is to control movement, but we can expect much more from human minds, he says.

A device that allows information transfer between brains could, in theory, allow us to do away with language – which plays the role of a "cumbersome and difficult-to-manage symbolic code", Stocco says.

"I could send thoughts from my brain to your brain in a way not represented by sounds or words," says Andrew Jackson at Newcastle University, UK. "You could envisage a world where if I wanted to say 'let's go to the pub', I could send that thought to your brain," he says. "Although I don't know if anyone would want that. I would rather link my brain to Wikipedia."

The ability to share abstract thoughts could enable us to solve more complex problems. "Sometimes it's really hard to collaborate if you are a mathematician and you're thinking about very complex and abstract objects," says Stocco. "If you could collaboratively solve common problems [using a brainet], it would be a way to leverage the skills of different individuals for a common goal."

This might be a way to perform future surgery, says Stocco. At present, when a team of surgeons is at work, only one will tend to have control of the scalpel at any moment. Imagine if each member of the team could focus on a particular aspect of the operation and coordinate their brain power to collectively control the procedure. "We are really far away from that scenario, but Nicolelis's work opens up all those possibilities for the first time, which is exciting," he says.

But there is a chance that such scenarios won't improve on current performance, Stocco says. Jason Ritt of Boston University agrees. "In principle we could communicate information much faster [with a brainet] than with vision and language, but there's a really high bar," he says. "Our ability to communicate with technology is still nowhere near our ability to communicate with speech."

The ability to share our thoughtsMovie Camera and brain power could also leave us vulnerable to new invasions of privacy, warns Rahwan. "Once you create a complex entity [like a brainet], you have to ensure that individual autonomy is protected," he says. It might be possible, for example, for one brain to manipulate others in a network.

There's also a chance that private thoughts might slip through along with ones to be shared, such as your intentions after drinking with someone you invited to the pub, says Nicholas Hatsopoulos at the University of Chicago in Illinois. "It might be a little scary," he says. "There are lots of thoughts that we have that we wouldn't want to share with others."

In the meantime, Nicolelis, who also develops exoskeletons that help people with spinal cord injuries regain movement, hopes to develop the technology trialled in monkeys for paraplegic people. He hopes that a more experienced user of a prosthetic limbMovie Camera or wheelchair, for example, might be able to collaborate with a less experienced user to directly train them to control it for themselves.


On that last part...well, you wouldn't want to jack into a brainet unless you trusted the people already in it or you would simply need to practice focusing techniques so that stray thoughts don't leak out.
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PostPosted: Sat Jul 18, 2015 11:38 pm    Post subject: Reply with quote

you all know this was foreseen back in the 70's?


https://www.youtube.com/watch?v=UV17B8oq_cE

https://www.youtube.com/watch?v=4OyIBuF73PQ
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PostPosted: Mon Jul 20, 2015 3:05 pm    Post subject: Reply with quote

Indeed, but computers were too bulky and slow back then. You remember what it was like--computers were still too large and expensive for home use and would continue to be until, oh, probably 1982.

The only problem with the concept of Colonel Austin is that if he lifted something very heavy with his bionic arm the connections it had to his shoulder would fail and he would risk pulling his arm out of the socket. Ouch. Also, I don't recall whether they reinforced his spine so lifting something too heavy could cause a disk rupture.

I had the lunchbox and the action figure where you could look through the eye. That was pretty cool to an 8-year-old.

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PostPosted: Mon Jul 20, 2015 3:29 pm    Post subject: Reply with quote

I read Cyborg, by Martin Caidin. But it was many years ago, and I don't remember too much. Might be fun to look through again. I don't know enough about what's actually happening to be able to tell what's right and wrong about it, though. It was 1972, so I assume some of it is wrong. Heh. But not the problems you just mentioned, Hashi. That's the fiction part of scifi.
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PostPosted: Tue Jul 21, 2015 1:24 am    Post subject: Reply with quote

Hashi - I had the boardgame of the Six Million Dollar Man.

my lunchbox was Marvel's Avengers.
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PostPosted: Wed Apr 13, 2016 7:56 pm    Post subject: Reply with quote

A new implanted chip allowed a young man to send signals from his brain directly to his hand, bypassing his spinal injury, in the first case of limb reanimation in a person with quadriplegia; the study is being published in Nature.

The limitation in this case is that the chip communicates to the arm only while he is hooked up to the system in the lab but it shouldn't take long to make the system portable enough to carry around on his chair; this would give him use of his arms. Make the system small enough to carry in a backpack and it could also reanimate his legs. I would combine it with an exoskeleton for at least the first year, though.

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PostPosted: Fri Apr 15, 2016 10:50 am    Post subject: Reply with quote

Extraordinary. Freakin' amazing. And yeah, now that they have made it work, they'll shrink the computer down to something portable in no time.
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PostPosted: Fri Apr 15, 2016 1:46 pm    Post subject: Reply with quote

Along this same line of research, I will have to find the article again but researchers put a mesh around (well, covering, since it doesn't go completely around it) a mouse's brain to bypass the normal neural circuits in it. The mesh allows signals to be carried from one part of the brain to another and the researchers hope that this will allow us to bypass damaged portions in patients suffering from cranial trauma or degenerative diseases.
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PostPosted: Fri Apr 15, 2016 4:50 pm    Post subject: Reply with quote

I'd be very interested in that article.

Is the mesh only hooked up in certain areas, so actually only connecting specific parts of the brain? Or is it unifying the whole brain?

How did they stop the brain from carrying those signals as usual?

Does it have functions other than carrying signals to connect parts of the brain? What I mean is, the neocortex does more than just carry signals. So if they remove the neocortex or prevent it from functioning, they'd have to do more than just help signals to flow again.
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PostPosted: Fri Apr 15, 2016 11:39 pm    Post subject: Reply with quote

I'm glad that we're moving closer to people having artificial appendages that allow them to have greater quality of life. But this idea of linking brains--I'll passs on that, and fear a lot of conflict and trauma could come out of such a situation.
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PostPosted: Fri Apr 15, 2016 11:50 pm    Post subject: Reply with quote

We're not going to give you a choice about linking brains. Sorry. But it's for the Greater Good. Very Happy
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PostPosted: Mon Apr 18, 2016 5:52 am    Post subject: Reply with quote

Yeah...that's the problem. Very Happy

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PostPosted: Fri Apr 22, 2016 10:45 pm    Post subject: Reply with quote

Darn...looks like I'll have to fry out my brain so no one would want it. Twisted Evil
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PostPosted: Fri Apr 22, 2016 10:47 pm    Post subject: Reply with quote

(Old Hurnsy looks around for that bottle of Scotch he's been saving...) Cheers <---I'm the one on the right, just in case you can't tell!
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