Not sure if this helps or is even especially correct but: some decades ago there was a movement towards 'inner space', meaning rather than looking outwards at a

Not sure if this helps or is even especially correct but: some decades ago there was a movement towards 'inner space', meaning rather than looking outwards at actions and effects on the world, it was about introspection and what was going on inside characters. This may be what they're talking about with interiority, and probably about the convoluted psychology. Those few books I read of this ilk tended to be very dull. Also bear in mind that literary criticism may be prone to being done for show and self-exhibition, much less about the book itself. This http://www.fudco.com/chip/deconstr.html http://www.fudco.com/chip/deconstr.html (starts with a quote from Donald Norman "Academics get paid for being clever, not for being right") is a painful example of somebody discovering this. It's not funny, it shows somebody's time being wasted as they try to genuinely understand WTF it's all about, and finally 'getting it'. It's well worth a read.