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FDA Approves Human Brain Implant Devices
AP ^ | Tuesday, April 13, 2004 | By JUSTIN POPE

Posted on 04/14/2004 5:40:59 AM PDT by Momaw Nadon

BOSTON (AP) - For years, futurists have dreamed of machines that can read minds, then act on instructions as they are thought. Now, human trials are set to begin on a brain-computer interface involving implants.

Cyberkinetics Inc. of Foxboro, Mass., has received Food and Drug Administration approval to begin a clinical trial in which four-square-millimeter chips will be placed beneath the skulls of paralyzed patients.

If successful, the chips could allow patients to command a computer to act - merely by thinking about the instructions they wish to send.

It's a small, early step in a mission to improve the quality of life for victims of strokes and debilitating diseases like cerebral palsy or Lou Gehrig's. Many victims of such ailments can now survive for long periods thanks to life support, but their quality of life is poor.

"A computer is a gateway to everything else these patients would like to do, including motivating your own muscles through electrical stimulation," said Cyberkinetics chief executive Tim Surgenor. "This is a step in the process."

The company is far from the only research group active in the field. An Atlanta company, Neural Signals, has conducted six similar implants as part of a clinical trial and hopes to conduct more. But for now, its device contains relatively simple electrodes, and experts say Cyberkinetics will be the first to engage in a long-term, human trial with a more sophisticated device placed inside a patient's brain. It hopes to bring a product to market in three to five years.

A number of research groups have focused on brain-computer links in recent years.

In 1998, Neural Signals researchers said a brain implant let a paralyzed stroke victim move a cursor to point out phrases like "See you later. Nice talking with you" on a computer screen. The next year, other scientists said electrodes on the scalp of two Lou Gehrig's disease patients let them spell messages on a computer screen.

Cyberkinetics founder Dr. John Donoghue, a Brown University neuroscientist, attracted attention with research on monkeys that was published in 2002 in the journal Nature.

Three rhesus monkeys were given implants, which were first used to record signals from their motor cortex - an area of the brain that controls movement - as they manipulated a joystick with their hands. Those signals were then used to develop a program that enabled one of the monkeys to continue moving a computer cursor with its brain.

The idea is not to stimulate the mind but rather to map neural activity so as to discern when the brain is signaling a desire to make a particular physical movement.

"We're going to say to a paralyzed patient, 'imagine moving your hand six inches to the right,'" Surgenor said.

Then, he said, researchers will try to identify the brain activity associated with that desire. Someday, that capacity could feed into related devices, such as a robotic arm, that help patients act on that desire.

It's misleading to say such technologies "read minds," said Dr. Jonathan Wolpaw, of the New York State Department of Health, who is conducting similar research. Instead, they train minds to recognize a new pattern of cause and effect, and adapt.

"What happens is you provide the brain with the opportunity to develop a new skill," he said.

Moving the experiment from monkeys to humans is a challenge. Cyberkinetics'"Brain Gate" contains tiny spikes that will extend down about one millimeter into the brain after being implanted beneath the skull, monitoring the activity from a small group of neurons.

The signals will be monitored through wires emerging from the skull, which presents some danger of infection. The company is working on a wireless version.

But Richard Andersen, a Cal Tech expert conducting similar research, said the field is advanced enough to warrant this next step.

"I think there is a consensus among many researchers that the time is right to begin trials in humans," Andersen said, noting that surgeons are already implanting devices into human brains - sometimes deeply - to treat deafness and Parkinson's disease. "There is always some risk but one considers the benefits."

Wolpaw said it isn't clear that it's necessary to implant such devices inside the brain; other technologies that monitor activity from outside the skull may prove as effective. But, he said, the idea of brain implants seems to attract more attention.

"The idea that you can get control by putting things into the brain appears to have an inherent fascination," he said.

Andersen, however, said that for now devices inside the brain provide the best information.

"It would be nice if in the future some technology comes along that would let you non-invasively record from the brain," he said. "MRIs do that. But unfortunately, it's very expensive and cumbersome, and the signal is very indirect and slow."


TOPICS: Culture/Society; Front Page News; Miscellaneous; News/Current Events; Philosophy; Technical
KEYWORDS: brain; braincomputer; braingate; brainimplant; brainimplants; cerebralpalsy; computer; cyberkinetics; deafness; devices; electrode; electrodes; evolution; experiment; fda; future; futurists; healthcare; human; humantrials; implant; information; interface; lougehrigs; machines; mind; minds; motorcortex; neuron; neurons; parkinsons; robot; robotic; skull; technology; wireless
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FYI and discussion
1 posted on 04/14/2004 5:41:00 AM PDT by Momaw Nadon
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To: Momaw Nadon
There will become a point in time when medical innovation will simply become unaffordable. Then what?
2 posted on 04/14/2004 5:47:57 AM PDT by verity (A Vote for Kerry is a vote for National Suicide!)
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To: verity
Hopefully, this technology will follow the path of modern day computers.

A current $5.00 pocket calculator is many times faster and much less expensive than the earliest computers.

3 posted on 04/14/2004 5:52:24 AM PDT by Momaw Nadon (Goals for 2004: Re-elect President Bush, over 60 Republicans in the Senate, and a Republican House.)
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To: verity
I am put in mind of C.S. Lewis' "Pellandria" trilogy, concerning the animated dead Head that gave the scientists instructions. When Blind Science becomes religion, where will it lead us? All things may be possible; all things are not good.
4 posted on 04/14/2004 5:53:14 AM PDT by 50sDad ( ST3d - Star Trek Tri-D Chess! http://my.oh.voyager.net/~abartmes)
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To: Momaw Nadon
The onboard computer that took us to the moon on the first landing trips was stupider than my first 286.
5 posted on 04/14/2004 5:54:14 AM PDT by 50sDad ( ST3d - Star Trek Tri-D Chess! http://my.oh.voyager.net/~abartmes)
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To: Momaw Nadon
I was wondering if John Kerry has signed up for one of these human brains.
6 posted on 04/14/2004 5:57:30 AM PDT by Piquaboy
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To: 50sDad
Perelandra
Out of the Silent Planet
That Hideous Strength

Some of C.S. Lewis's best works...great science fiction...

7 posted on 04/14/2004 6:04:40 AM PDT by joesnuffy (Moderate Islam Is For Dilettantes)
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To: joesnuffy
You know, as SF, I found those 3 books dreadful, and had to slog through them. As prophecy and allegory, I ate them up. (Now Narnia...those were high fiction to me. If you liked them, stop in and see my DragonRaid page!)
8 posted on 04/14/2004 6:15:59 AM PDT by 50sDad ( ST3d - Star Trek Tri-D Chess! http://my.oh.voyager.net/~abartmes)
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To: Momaw Nadon
Moving the experiment from monkeys to humans is a challenge.

Not for folks who believe in Evolution........



9 posted on 04/14/2004 6:28:17 AM PDT by Elsie (Truth is violated by falsehood, but it is outraged by silence.)
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To: Momaw Nadon
So does this mean that somebody it will be possible to implant a brain into Algore's head?
10 posted on 04/14/2004 6:29:46 AM PDT by steve-b
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To: Momaw Nadon
Just wait until Felos and the Hemlock Society gets wind of this.
11 posted on 04/14/2004 6:57:52 AM PDT by mtbopfuyn
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To: Momaw Nadon
FDA Approves Human Brain Implant Devices

OMG, finally there's real hope for Democrats!!!!
12 posted on 04/14/2004 7:08:22 AM PDT by DustyMoment (Repeal CFR NOW!!)
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To: Momaw Nadon
Looks like my plan to become a super-powerful crime-fighting cyborg is one step closer to completion...
13 posted on 04/14/2004 7:33:17 AM PDT by Sofa King (MY rights are not subject to YOUR approval http://www.angelfire.com/art2/sofaking/index.html)
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To: Momaw Nadon
We are the Borg. Resistance is futile.
14 posted on 04/14/2004 7:34:29 AM PDT by YourAdHere (http://cheatingsfun.topcities.com)
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To: Momaw Nadon
What happens when a person has a thought they don't actually want acted upon? IE. Sometimes I wish my spouse would just disappear... Man!! I hate my boss...wish someone would take care of him/her...etc...
15 posted on 04/14/2004 7:34:45 AM PDT by trussell (Member: Viking Kitty Society; Charter member: Troll Patrol...)
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To: Sofa King
I'm too lazy to fight crime :D
16 posted on 04/14/2004 7:38:20 AM PDT by cyborg (GO CONDI GO!)
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Revelation 13:16
17 posted on 04/14/2004 7:43:22 AM PDT by mamalujo (Learn to discern)
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To: Momaw Nadon

Whoa.

18 posted on 04/14/2004 8:10:28 AM PDT by SquirrelKing
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To: joesnuffy
Some of C.S. Lewis's best works...great science fiction...

Read 'em every year.

19 posted on 04/14/2004 8:11:20 AM PDT by SquirrelKing
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To: SquirrelKing
Of course, this is also a predecessor to implanting the 666 on everyone's forehead to get the mark of the beast...What happens when we are required to get this chip implant?
20 posted on 04/14/2004 8:14:36 AM PDT by princess leah
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