Scientists have been searching for ways to link the brain with computers. Brain-computer interface, or BCI, technology could help people with disabilities send command to machines,says the VOA Special Technology Report published in Science and Tech
candan, Canada (
prHWY.com) July 26, 2012 - Scientists have been searching for ways to link the brain with computers. Brain-computer interface, or BCI, technology could help people with disabilities send command to machines,says the VOA Special Technology Report published in Science and Technology,yesterday. Recently, scientists demonstrated a small robotic vehicle directed by a person's thoughts. The demonstration took place at the Swiss Embassy in Washington. Jose Millan and Michelle Tavella developed the system. Mr. Tavella is a researcher at the Federal Polytechnic School in Lusanne, Switzerland.In the laboratory, he can operate a wheel chair just by thinking about moving his left or right hand."That's very very easy. That's the simplest part we could say because moving one hand or the other is a very common task. There is no work load.It's very simple," he says. Professor Millan is the team leader. He says systems like those being developed in Lusanne and other places may be available in less than ten years. "The brain-machine interface is a system that allows disabled people, people suffering from physical disabilities to communicate with external world and also to control devices," he says. Our brain has billions of nerve cells. These send signals through the spinal cord to the muscles to give us the ability to move.But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles. The head cover captures the signals from the scalp and redirects them to a computer. The computer interprets the signals and commands the motorized wheel chair which has two cameras that identify objects in its path.They help the computer react to commands from the brain. Professor Millan says scientists keep improving the computer software that identifies brain signals and turns them into simple commands.
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