WHAT’S on your mind? For £79, anyone can buy a headset that reads the electrical activity of their brain. It’s called an electroencephalogram, or EEG, and you can use it to control devices with the power of your mind. But there’s a drawback: they don’t work when the wearer is moving and they look silly, so no one wants to wear them.
The solution could be a kind of EEG system that does away with the cumbersome electrodes, annoying gels and wires of its predecessors, replacing them with a flexible electronic skin that conforms to the body. It promises to let us monitor our brains discreetly 24 hours a day, and can be worn continuously for two weeks, staying put whether you’re swimming, running or sleeping.
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