Researchers at Howard Hughes Medical Institute set up a brain-computer interface to record brain signals when a person thinks of writing a letter. That was a unique idea to record and recreate the expression of a paralyzed person who wants to write. The neural signal for each letter was recorded by giving instructions to the patient. When the patterns for all characters are recorded, the patient was asked to think of a letter. The signals recorded on the interface were proved to be correct. Read More…