[aerohead]

This is exactly the sort of stuff Sagan wrote about in 'Dragons of Eden.'
Of particular interest to me is disinhibition of the R-complex switch,which ordinarily short-circuits the reptilian brain during waking hours,and without,allows fight or flight,non-thinking,DNA-memory-reactionary behavior to overpower the left-hemisphere's rational counterbalance.
Tribal sentries and sentinels become 'enemy',in a dyslexic inverted logic.