The self-talk is in that little piece of the brain that I've
  been studying, by the way. It's a very tiny part but handles all
  of what is conscious about us. It only lasts for 2-4 seconds,
  although you can chain together connected things to make it seem
  longer (thanks to the persistance of vision, except it's
  persistance of sound - the 2-4 second chunks overlap each
  other... mostly)"