When Alan Ayck­bourn wro­te Giz­mo in 1999 the device was pure sci­ence fic­tion. In the mean­ti­me neu­ro­sci­ence has made ama­zing pro­gress:

Greg Gage is on a mis­si­on to make brain sci­ence acces­si­ble to all. In this fun, kind of cree­py demo, the neu­ro­sci­en­tist and TED Seni­or Fel­low uses a simp­le, inex­pen­si­ve DIY kit to take away the free will of an audi­ence mem­ber. It’s not a par­lor trick; it actual­ly works. You have to see it to belie­ve it.

Watch „How to con­trol someo­ne else’s arm with your brain“. If you have pro­blems under­stan­ding him, acti­va­te Eng­lish (!) sub­tit­les. If the talk is too fast, read the „Tran­script“. As usu­al pre­pa­re a short talk for next les­son.