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AP/Press Association Images

US to try new experiment to restore soldiers' memories

The US says it is carefully weighing the ethics of the experiments.

US MILITARY RESEARCHERS announced today they have awarded $40 million (€30 million) toward developing a new kind of brain implant that may help restore memories in wounded soldiers and civilians.

The work represents a major scientific leap forward, but experts said many hurdles remain before it can be shown to work in people, the Defense Advanced Research Projects Agency (DARPA) said.

The hope is that some day, a wireless, implantable device will bridge gaps in the injured brain and make it easier to remember basic events, places, and context — known as declarative memories.

This kind of recall can be lost in traumatic brain injury, which has affected 270,00 US military service people since 2000.

“Our vision is to develop neuroprosthetics for memory recovery in patients living with brain injury and dysfunction,” said Justin Sanchez, programme manager of the Restoring Active Memory (RAM) program at DARPA. He added:

Those service members have paid the ultimate price in service of our nation, so it our great responsibility to try to come up with new and innovative — not only scientific but medical — approaches that can help repay some of that debt.

DARPA said it was carefully weighing the ethics of such experiments, and is consulting with a panel of neuroscience experts about potential pitfalls associated with the research.

“It is risky, which is very typical of DARPA,” said Geoffrey Ling, director of DARPA’s Biological Technologies Office.

First tests on epilepsy patients 

The work is part of a four-year program that supports President Barack Obama’s Brain Initiative, a $100 million effort.

The latest DARPA awards give up to $22.5 million to a team of scientists at the University of Pennsylvania, up to $15 million the University of California, Los Angeles, and $2.5 million to Lawrence Livermore National Laboratory.

Medtronic, the medical device technology company, was to contribute with a “cost-sharing effort,” said Sanchez, but details on that were not immediately available.

Any new neuroprosthetic device will be first tested on patients with epilepsy who have also suffered memory loss as a result of their condition and who are already implanted with electrodes as part of their treatment, researchers said.

If it works for those patients, “then we will have gained extremely valuable information on how to restore normal memory function in patients with traumatic brain injury or Alzheimer’s disease,” said Michael Kahana, director of Penn’s Computational Memory lab.

A statement from UCLA said scientists will be looking at how to “intervene with sophisticated electrical stimulation to help restore memory function.”

What type of memories will be restored? 

As an example of the kind of memory that researchers aim to restore, Sanchez cited a simple trip to the store, for which a person would need to remember the name of the store, where it is located, perhaps the phone number or the name of the owner.

Such facts can be difficult to recall when a person has a traumatic brain injury.

“Ultimately, at the end of the day we would like to find solutions for the emotional, social and economic aspects of those injuries,” said Sanchez, adding:

This concept and this vision? Easier said than done.
There are huge technological challenges and scientific challenges that must be overcome to deliver these kinds of therapies back to our injured military personnel.

In response to concerns that the US military might be seeking to alter or remove the recall of soldiers in combat, Sanchez said DARPA is not doing any research in the area of erasing memories.

- © AFP, 2014

MORE IN SCIENCE

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Read: Scientists make ‘major step forward’ in predicting whether someone will get Alzheimer’s > 

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    Mute Trevor Beale
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    Sep 3rd 2014, 6:45 AM

    They’d want to start by sorting out these water charges. Should be top of their agenda.

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    Mute Roscom-Man
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    Sep 3rd 2014, 6:36 AM

    I hope they are well rested after their break. What an absolute pack of wasters. Joan Burton has been offered a position as a forwards coach on the Irish ladies Rugby team. A very accomplished No.8 in her day

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    Mute Ian McG
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    Sep 3rd 2014, 7:38 AM

    Kenny can’t even manage a smile properly! What a nonsense photo though with them all trying to look hip

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    Mute KentuckyWindage
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    Sep 3rd 2014, 6:53 AM

    Who took this awful photo?
    My beloved Joan’s features are all blurred. The twinkle in her eye may be dimmed in this photo, but nothing can change the warmth of her heart.

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    Mute Firas
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    Sep 3rd 2014, 9:16 AM

    LMFAO – Well done sir! Gave me a chuckle.

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    Mute Ian O'Donovan
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    Sep 3rd 2014, 7:59 AM

    Forgot they were away..

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    Mute Chris Mackey
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    Sep 3rd 2014, 9:22 AM

    What do you mean they were but they are all ways away whats new. What we should be saying is Oh they are back

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    Mute Martin Coyle
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    Sep 3rd 2014, 8:16 AM

    God bless them all they look shattered, maybe we should give them a permanent rest.

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    Mute John Farrant
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    Sep 3rd 2014, 8:40 AM

    Maybe they will do nothing until the next concert comes along then they will be galvanised into action and be willing to change the law overnight to make Ireland a better place. I agree with one of the previous comments. They sould have been rested permanently.

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    Mute Gambon
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    Sep 3rd 2014, 7:09 AM

    CAN I JUST SAY …… We are back !!

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