Based on the behaviors I have seen, the IM type is seen as a means to the improvement of the EM type. Floating in between the relationship between the two systems is a fundamental drive that only their effective interaction can satisfy. For each dual-type this drive differs. What is certain is its nature is one of determination to overcome a serious personal weakness.
It's when we consider the IM and EM types together that a personality begins to become apparent.
For each dual-type the prime drive must be independently deduced. There is no "pattern", only a symmetry. The weaknesses inherent to the IM type shape the conditions which the EM type must struggle with, and therein lies the quest to overcome. These drives are not flattering... in fact, they are even outright invasive. You really have to appreciate a person's humanity in the full to notice them.
Here are some patterns:
- Introverts are by their nature prone to feelings of extreme loneliness. F EM types are unable to escape these feelings, while T types bury them behind a wall of purposeful abstraction. Likewise, extroverts with F EM types are more engaging than T types.
- Ni EM types very deeply want acceptance into groups. They see their IM type as the means to obtaining this acceptance. For example, the LSE-IEI sees teamwork and humility as the key to being accepted. The LII-IEI sees conversion of views and allegiances as the means to acceptance. ILI EM types would like to get acceptance, but often find that the political analysis required is more than they can handle. As such, they are more likely to stick to enclaves as opposed to winning people over, as an IEI EM will. For ILI EM refuge with like minds is satisfaction enough, but for an IEI EM people who have automatic liking for them are never challenging enough politically to sustain their interest.