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What is the Brain-Machine Interface
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Wearing black headsets with tentacle-like sensors stretched over their foreheads, the competitors stare at cubes floating on computer screens as their small white drones prepare for takeoff.
"Three, two, one ... GO!" the announcer hollers, and as the racers fix their thoughts on pushing the cubes, the drones suddenly whir, rise and buzz through the air. Some struggle to move even a few feet, while others zip confidently across the finish line.
The competition ? billed as the world's first drone race involving a brain-controlled interface ? involved 16 pilots using willpower to drive drones through a 10-yard dash over an indoor basketball court at the University of Florida this past weekend.
The Associated Press was there to record the event, which organizers hope to make an annual inter-collegiate spectacle, involving ever-more dynamic moves and challenges and a trophy that puts the brain on a pedestal.
"With events like this, we're popularizing the use of BCI instead of it being stuck in the research lab," said Chris Crawford, a PhD student in human-centered computing. "BCI was a technology that was geared specifically for medical purposes, and in order to expand this to the general public, we actually have to embrace these consumer brand devices and push them to the limit."
Scientists have been able to detect brainwaves for more than a century, and mind-controlled technology already is helping paralyzed people move limbs or robotic prosthetics. But now the technology is becoming widely accessible. Emotiv and NeuroSky are among startups offering electroencephalogram headsets for purchase online for several hundred dollars. The models Florida racers used cost about $500 each.
Here's how the technology delivers an abstract thought through the digital realm and into the real world: Each EEG headset is calibrated to identify the electrical activity associated with particular thoughts in each wearer's brain ? recording, for example, where neurons fire when the wearer imagines pushing a chair across the floor. Programmers write code to translate these "imaginary motion" signals into commands that computers send to the drones.
Professor Juan Gilbert, whose computer science students organized the race, is inviting other universities to assemble brain-drone racing teams for 2017, pushing interest in a technology with a potential that seems limited only by the human imagination.
As our lives become increasingly reliant on Internet-enabled devices, a concept known as the Internet of things, Gilbert and his team want to know how mind-controlled devices can expand and change the way we play, work and live.
You might use your mind to unlock your car, or explore a virtual world, hands-free. It could be applied for real-time monitoring of our moods and states of consciousness. Researchers are studying whether they can use a big-rig driver's mind to trigger a device that will tell him when he's too tired to drive.
"One day you could wear a brain-controlled interface device like you wear a watch, to interact with things around you," Gilbert said.
So far, BCI research has largely been about helping disabled people regain freedom of movement. Recently, an Ohio man using only his thoughts was able to move his paralyzed hand thanks to a chip implanted in his brain. In Miami, doctors using BCI are helping a 19-year-old man stand on his own after losing the use of his legs in a motorcycle accident.
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