The Lore Seekers' efforts to study Carrion Eaters and Devourers is thwarted by the fact that it's hard to survive an encounter with them. It has been observed by the rare survivors that a victim of a Carrion Eater may just stand motionless while the Carrion Easter or Devourer feasts upon their flesh. The Lore Seeker Trimiel has postulated the paralysis starts from within the victim's mind, as the victim recalls moments in their life when they have been a worm and they are paralyzed by regret. Trimiel has not been able to prove this to the satisfaction of other Lore Seekers, but one thing we do know: A high Spirit Resistance allows a potential victim the chance to escape paralysis and run away.
Credits for EK