Anatomy of a Type

Every personality consists of the same 8 cognitive functions (the 4 cognitive processes F – T – N- S with the two orientations e and i):

Fi – Fe – Ti – Te – Ni – Ne – Si – Se

These functions appear in a unique order within each personality type. The position in which a function falls is how often a personality prefers to use that function compared to the other functions, and in what contexts.

The eight function positions are:

1 2 3 4 5 6 7 8
Conscious Processes Unconscious / Shadow Processes
Dominant (Dom)
Leading
Base
Auxiliary (Aux)
Supporting
Creative
Tertiary
Relief
Role
Inferior
Aspirational
Vulnerable
Opposing
Suggestive
Critical Parent
Mobilizing
Deceiving
Ignoring
Devilish
Demonstrative

With 8 functions, 256 distinct arrangements are mathematically possible, but when it comes to personalities, there are only 16 function arrangements possible due to the following restrictions:

Because every person has to…

  • gather outside information and decide what to do with it, and
  • gather inside information and decide what to do with it

…every personality must include:

  • One conscious and one unconscious cognitive function each of Thinking, Feeling, Sensing, and Intuition

So that a psyche remains balanced, as a group, the 4 conscious or 4 unconscious processes must include:

  • One introverted and one extraverted function from each activity (judging / perceiving)
  • One of the two activity rhythms: PJJP or JPPJ
  • Alternating introverted and extraverted functions: (i – e – i – e) or (e – i – e – i)