them to a computer which feeds the signals to the robot happening, all in the blink of an eye and the technology is in the early stages, but the benefits could be life changing, obviously. for example, watch this. you can see the robot arm lift the bottle of coffee so the woman can take a sip. see that? she is doing that with her brain. the scientists say her brain did all of the work. the journal "nature," released this video and this is a scientist behind the project, dr. lee, an engineering professor at brown university and a critical care neurologist. how in the world did you get this done, doctor, congratulations? >>guest: thank you very much. just as you described, there were two participants that we are reporting both have, are unable to move their hands and no functional use of their armors legs and they both are unable to speak. they both enrolled in our pilot