Paralyzed patients communicate thoughts via brain-computer interface

Handout photograph of the NIRS/EEG brain-computer interface system worn by a modelBy Kate Kelland LONDON (Reuters) – Scientists 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 paralyzed 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. If all eye movements are lost, the condition is referred to as complete locked-in syndrome.

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