How Jung Saw E/I, Part 2

In his early work, Jung spent a great deal of energy exploring the nature of introversion and extroversion “in themselves,” i.e. as pure E and I. Ironically, though, most contemporary psychodynamic interpretations of Jung’s typology *do not* focus on E and I in this manner, but regard them as properties of the cognitive functions. 

In Psychological Types, introversion is equated with a fearful attitude towards the outer world, individualism, and a propensity for seminal creativity, whereas extroversion is equated with blind adaptation, resilience, and group instinct.

However, these correlations do not carry over to function-based approaches to Jungian typology. For example, ISFJs are not thought to be more individualistic and seminally creative than ENTPs. So function-based approaches to Jungian typology would reject this cluster of original assertions by Jung, focusing instead on the arrangement and orientations of the cognitive functions. ...