Being a bio major, I was very fascinated with Persinger's work on temporal lobe stimulation, and its induction of supernatural/paranormal experiences. (I was an ET nut since I was a little kid.) It does weaken the argument for the existence of the mystical or supernatural to a Thomas-y person like me, but it doesn't negate it. As LT rightly pointed out if even such a module were to exist, couldn't one just as logically say that atheists have underdeveloped ones?
From an evolutionary/material standpoint, one could argue that this sort of belief was necessary and beneficial for the early human mind. It would help it deal with its awareness of eventual death. It would help them remain sane and continue forward, rather than become dysfunctional (insane) and paralyzed by the prospect of a futile existence.
Editted to add: Quantum mechanics and "spooky action at a distance" are way too counterintuitive for this chimp!!!! But Frankiespeaking is right in how limited are views are even on what most would call objective reality....can we really be judgmental with the spiritual then? <---------- (Its the local agnostics club's membership drive can you tell? )