User blog comment:Le Rottweiler/Can Shubby use mind control?/@comment-26005008-20150414125515/@comment-3547390-20150414130642

Sounds like endorphins, which still is connected with the whole pleasure center concept...

Nobody said the probes had to be mechanical, they could be organic growths stemmed from the mutations. The probes are basically designed as an override of the brain, it keeps it intact enough to know combat techniques while rewiring the mind to allow for said control. Unlike a Shambler or Fiend, Grunts weren't spawn of Shub-Niggurath, meaning they needed a way to become controlled.

His works are free. Plenty of sites document all his short stories.

I didn't say consensus, I said my beliefs. We shouldn't be supposing one way or the other to be honest...