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Paralysed patients communicate thoughts via brain-computer interface

LONDON:┬áScientists have developed a brain-computer interface that reads the brain's blood oxygen levels and enables communication by deciphering the thoughts of patients who are totally paralysed and unable to talk. In a trial of the system in four patients with complete locked-in syndrome - incapable of moving even their eyes to communicate - it helped them use their thought waves to respond yes or no to spoken questions. People who are paralysed except for up and down eye movements and blinking are classified as having…