| Primary Functions (Strengths and Motivations) | Shadow Functions (Sources of stress) |
| Ingrained: Introverted Intuition (Ni) | Extraverted Intuition (Ne) |
| Associative: Extraverted Feeling (Fe) | Introverted Feeling (Fi) |
| Exploratory: Introverted Thinking (Ti) | Extraverted Thinking (Te) |
| Regulatory: Extraverted Sensing (Se) | Introverted Sensing (Si) |
The ingrained nature of INF is to fit all the information available and make sense of it as different perspectives. The INF uses this to understand the world and make predictions. Since it is a perceiving function, INF using this can come up with accurate predictions even without understanding the mechanisms behind it.
Associative function of INF is extraverted Feeling, which rejoices in people to people contact and empathy. Hence INF will find interacting with people stimulating and entertaining. Combined with the ingrained Ni, INF gets interested in new ways of organizing things and tasks that can be beneficial to people around. Also, INF is quick to pick on clues like body language and verbal tone and can use this to gauge and understand others.
The exploratory function of INF is introverted thinking, which makes INF logical in seeking new adventures. Hence an INF would adhere to tried and tested methods and may not venture outside, unless it is quite logical to do so. This presents a conflict with their ingrained Ni, which is always on the lookout for new perspectives. In combination with associative Fe, they can appreciate empathy as well as intellectual abilities in others. This makes INF one of the rare types that can pursue careers in arts as well as science effectively.
The regulatory function of INF is extraverted sensing, which is used to fine tune the creative and spontaneous nature of INF in a sensible fashion. Being their least confident function, it is not quick in identifying immediate possibilities like in for other types with dominant extraverted sensing. They can get quickly overwhelmed if engaging in a task that requires keeping track of lot of minute details. But it can work with other functions in order to keep the INF grounded and practical.
Type codes in other systems: INFJ (MBTI), INFp (Socionics)