News
Volume 4 Issue 14 - July 15, 2006
Sensors implanted in brain help paralysed man use thoughts to move cursor
D.N.I.S. News Network - In a major breakthrough, a paralysed man with a
sensor implanted in his brain was able to control a computer, a television
set and a robot with the help of his thoughts. The scientists involved in
the experiment say these results offer hope that in future, people with spinal
cord injuries, Lou Gehrigs disease or other conditions that impair movement
may be able to communicate or better control their world.
If
your brain can do it, we can tap into it, John P. Donoghue
was reported to have stated. Donoghue is a professor
of Neuroscience at
The
sensor measures four millimetres by four millimetres, and contains 100 tiny
electrodes. The device is implanted in the area of the affected persons motor
cortex responsible for arm movement and is connected to a pedestal placed
on the top of the persons scull. When the device is to be used, a cable connected
to a computer is plugged into the pedestal. So the person is directly wired
to a computer. He/she would then imagine moving his/her arm to hit various
targets, and the sensor would catch on the electrical signals emitted by neurons
in his/her motor cortex as they controlled the imaginary arm movement.
The
first person to receive the implant, 26-year-old Nagle, moved a cursor, opened
e-mail, played a simple game called Pong and drew a crude circle on the screen.
He could also change the channel or volume on a television set, move a robot
arm slightly, and open and close a prosthetic hand. I pretty much had that
mastered in four days, Nagle was reported to have stated in a telephonic
interview from the New England Sinai Hospital and Rehabilitation Centre in
Stoughton, Massachusetts.
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- Sensors implanted in brain help paralysed man use thoughts to move cursor
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