A computer programme enabling paralysed patients to create artwork using just the power of their brains drew big crowds on Wednesday at the CeBIT, the world's top IT fair.
Under a system pioneered by Austrian firm g-tec, the user wears a cap that measures brain activity.
By focusing hard on a flashing icon on a screen, the cap can recognise the specific brain activity connected to that item, allowing the user to "choose" what he or she wants the computer to do.
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