By Amaani Lyle
American Forces Press Service
WASHINGTON, Jan. 10, 2014 – It’s metal, sleek and precise.
It pivots and flexes like a real hand, or at least one from a science-fiction
movie.
But with no Hollywood special effects involved, brain
research experts at yesterday’s Defense Advanced Research Projects Agency
Congressional Tech Showcase here demonstrated an artificial arm and hand that
can do everything from picking up cups to playing the piano, powered by the
user’s brain.
Mike McLoughlin, chief engineer for research and exploratory
development at Johns Hopkins University’s applied physics laboratory, said
DARPA’s Revolutionizing Prosthetics Program developed the device over about
five years to improve the quality of life for service members who suffered the
loss of an upper extremity.
“Five, six years ago [an amputee’s] option was essentially a
hook,” McLoughlin said. “We want to give them a much greater level of
functionality, because what they really want to do is go back and contribute to
society.”
The demo also featured an excerpt from a 60 Minutes episode
that aired in 2013 showing Jan, a patient suffering from a neurological
condition, with two electrode chips, each about the size of a fingernail, in
her brain.
Even simple tasks such as picking up a cup of coffee are the
result of a complex series of commands and information “behind the scenes” in
the brain, McLoughlin explained. “We’re able to take those complex things and
reduce them down to simple thoughts.”
With the help of the arm and hand, Jan moved, interacted and
grasped objects in a more natural way, McLoughlin said, adding that the arm
also can function with information gleaned from a computer script.
He described the arm’s future and range of potential
applications as “exciting” for service members and civilians alike.
“Think about the elderly,” he said. “If somebody has trouble
getting around, and we can provide assistance through exoskeleton devices. That
has huge impact, not only to the individual in terms of quality of life and
being independent, but it also has huge financial implications, possibly saving
them hospice care expenses.”
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