AI and infra-red open communication with ‘locked-in’ people

This is not the first time communication from completely paralysed people has been enabled using some form of brain interface, but it is an early example of communication via natural yes/no thoughts – rather than through the subject’s training their thoughts to match the needs of the interface. A related team of researchers deduced yes/no answers from infra-red sensing of a single person in 2014. Attempts to do something similar using electrical electroencephalogram (EEG) sensing have been unsuccessful, according to ‘Brain-computer interface-based communication in the completely locked-in state‘, a paper in PLOS Biology which describes the new work. The scanning technique, dubbed ‘functional near-infrared spectroscopy’ (fNIRS) is non-invasive, and involves infra-red sources and sensors places on the scalp. These are used to detect changes in oxygenated blood flow in the brain – flows…

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