"Not so far as I've been able to discover, unless you count Jung." The psychological philosophies played out by Personas and Shadows were still theorized; they just don't seem to be direct reflections of observable effects. Or perhaps observable effects don't imitate them - it's always hard to tell, with the cognitive world. "Though there are some remarkably similar effects in terms of cognitive psience. I've begun researching the comparisons in earnest, now that I can use this place as a sort of middle-ground."