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Honda unveils helmet that lets wearer control a robot by thought alone

Ian Sample,
London Guardian [1]
Wednesday, April 1, 2009

An elaborate electronic helmet that allows the wearer to control a robot by thought alone has been unveiled by researchers in Japan.

Scientists at the Honda Research Institute demonstrated the invention today by using it to move the arms and legs of an Asimo humanoid robot.

To control the robot, the person wearing the helmet only had to think about making the movement. Its inventors hope that one day the mind-control technology will allow people to do things like turn air conditioning on or off and open their car boot without putting their shopping down.

The helmet is the first “brain-machine interface” to combine two different techniques for picking up activity in the brain. Sensors in the helmet detect electrical signals through the scalp in the same way as a standard EEG (electroencephalogram). The scientists combined this with another technique called near-infrared spectroscopy, which can be used to monitor changes in blood flow in the brain.


Brain activity picked up by the helmet is sent to a computer, which uses software to work out which movement the person is thinking about. It then sends a signal to the robot commanding it to perform the move. Typically, it takes a few seconds for the thought to be turned into a robotic action.

Honda said the technology was not ready for general use because of potential distractions in the person’s thinking. Another problem is that brain patterns differ greatly between individuals, and so for the technology to work brain activity must first be analysed for up to three hours.

Full article here [1]