Ah, been looking for you. [1]lop-zand our engagement with the
  world. It's not EXACTLY the same as the stuff I drew up (as I
  have an inner inhibition loop, although I suppose that's part of
  the comparison function) but close enough that I could back it
  as "I believe this is true". I went the long way around (as I
  usually do), settling on "double-loop learning" as the best
  all-purpose analogy, with too many notes on NOR (parallel
  retrieval of "what's left" after ignoring most everything else)
  vs the silliness of considering it simply "XOR", NAND for serial
  retrieval, etc Still, it's nice to see something in a book and
  go, AH HA, I KNOW YOU!

References

  Visible links
  1. http://icopiedyou.com/wp-content/uploads/2015/10/lop-z.jpg