I know a lot of LII's, so I can observe differences between LII's :
Style #1 : Expressive-Eccentric style
expressive, provocative, idiosyncratic, strong intellectual independance and obstinacy, sometimes aggressive and reactive.
Style #2 : Perfectionistic-Idealistic style
have high ideals, likes to do everything right, scrupulous, pessimistic and reserved, physically strong, ascetic, seems resolute but dissociates easily.
Style #3 : Schizoid-Passive style
solitary, passive, egocentric, tends to be misanthropic, minimalistic social interaction, only likes people "who deserve to be".
Style #4 : Empathetic-Social style
likes objectivity, strong and powerful structures, finding solutions for people, very sociable but not that expressive.
Those styles could be related to :
- neurochemical configurations (e.g. norepinephrine, dopamine, and serotonin levels)
- cognitive informations (e.g. memes)
- socionic subtype systems
- unknown and undiscovered type theories or other psychological theories