Hi, Deborah,
The article I usually cite for brain differences is this one from Current Biology (see next tweet), which gives the research via MRI scans that reveals that self-described conservative students have a larger amygdala than liberals, and that . . .
Thus, to a conservative, “The world really is a frightening place.”
Link: cell.com/current-biolog…
I'm not a psychologist, so I accept the conclusion: Liberals find it easier to cope with complexity & nuance; conservatives are more fearful.
Understanding this stuff, I think, will help later when we try to repair the damage done to our country by the far right wing.