- House passes VA reform compromise
- Obama admin to blame for HealthCare.gov woes, $840M cost: GAO
- Al Gore’s climate-changers at EPA hearings foiled by cool temperatures
- Army’s 3-D printed bombs will create ‘a whole new universe’ of deadly capabilities
- Hamas calls on Hezbollah to join in fight against Israel
- Senators to FIFA, others: Don’t reward Putin with the World Cup in 2018
- U.S. condemns Israeli shelling of shelter in Gaza
- Obamacare shoots premiums up by 88 percent in California
- Chicken pox outbreak puts illegal immigrant facility on lockdown
- Obama to Republicans: ‘Stop just hatin’ all the time’
Paralyzed woman uses thoughts to control robot arm
Question of the Day
NEW YORK (AP) - Using only her thoughts, a Massachusetts woman paralyzed for 15 years directed a robotic arm to pick up a bottle of coffee and bring it to her lips, researchers report in the latest advance in harnessing brain waves to help disabled people.
In the past year, similar stories have included a quadriplegic man in Pennsylvania who made a robotic arm give a high-five and stroke his girlfriend’s hand, and a partially paralyzed man who remotely controlled a small robot that scooted around in a Swiss lab.
It’s startling stuff. But will the experimental brain-controlled technology ever help paralyzed people in everyday life?
Experts in the technology and in rehabilitation medicine say they are optimistic that it will, once technology improves and the cost comes down.
The latest report, which was published online Wednesday in the journal Nature, comes from scientists at Brown University, the Providence VA Medical Center in Rhode Island, Harvard Medical School and elsewhere.
It describes how two people who lost use of their arms and legs because of strokes years before were able to control free-standing robotic arms with the help of a tiny sensor implanted in their brains.
The sensor, about the size of a baby aspirin, eavesdropped on the electrical activity of a few dozen brain cells as the study participants imagined moving their arms. The chip then sent signals to a computer, which translated them into commands to the robotic arms.
The computer was taught how to interpret the brain patterns through practice as the paralyzed participants watched the robot arms move and then imagined that they were moving their own arms the same way.
In one task to test the system, the two participants tried to direct a robot arm to reach out and squeeze foam balls in front of them. The man succeeded in less than half his attempts, but the woman was able to do it about 60 percent of the time.
The woman, Cathy Hutchinson of East Taunton, Mass., was also asked to use the arm to drink the coffee. That involved picking up the bottle, bringing it to her lips so she could sip from a straw, and putting the bottle back on the table. She succeeded in four out of six tries with the arm, which was specially programmed for this task.
“The smile on her face … was just a wonderful thing to see,” said Dr. Leigh Hochberg, a researcher with the Providence VA, Brown and Massachusetts General Hospital.
Researchers said in Hutchinson’s case that the results show that the implanted chip still worked after five years, and that her brain was still generating useful signals even though she hadn’t moved her arms in almost 15 years.
The ultimate goal, researchers said, is an implanted device that would reactivate a person’s own paralyzed limbs. Another goal is to operate high-tech prostheses for amputees.
Andrew Schwartz, who is doing similar research at the University of Pittsburgh, said the coffee-sipping was encouraging because it represents an everyday task a paralyzed person might want to do. “I think it’s showing this technology has therapeutic potential,” he said.
“The field is rapidly advancing, and I think this offers hope for people who are paralyzed,” Schwartz said. “The types of movements we’ll be able to do are getting more and more sophisticated at a rapid pace.”
TWT Video Picks
- Geraldo Rivera: Matt Drudge 'doing his best to stir up a civil war'
- Al Gore's climate-changers at EPA hearings foiled by cool temperatures
- Catholic League slams Obama: 'Do Christian lives mean so little to you?'
- Lois Lerner hated conservatives, new emails show
- House unveils bill to speed deportations of illegal immigrant children
- HURT: Impeaching Obama is a losing strategy for the GOP
- Federal judge grants 90-day stay in D.C. gun case
- CARSON: Rudderless U.S. foreign policy
- Patent workers paid to exercise, shop, do chores: report
- House votes to sue President Obama over claims of presidential power
Obama's biggest White House 'fails'
Celebrities turned politicians
Athletes turned actors
20 gadgets that changed the world