The 8 Cognitive Functions
Perceiving Functions (How You Take In Information)
Synthesizes information into unified visions and insights. Operates unconsciously, delivering "aha" moments with deep conviction. Sees patterns beneath the surface. Dominant in: INFJ, INTJ
Explores possibilities and connections in the external world. Generates ideas rapidly, seeing multiple angles simultaneously. Thrives on brainstorming and novelty. Dominant in: ENFP, ENTP
Stores and recalls detailed sensory impressions from past experiences. Creates a rich internal library of "how things are." Values tradition and consistency. Dominant in: ISFJ, ISTJ
Engages directly with the present moment through the five senses. Attuned to aesthetics, physical environment, and immediate opportunities. Action-oriented. Dominant in: ESFP, ESTP
Judging Functions (How You Make Decisions)
Builds precise internal logical frameworks. Seeks to understand how things work at a fundamental level. Values accuracy and internal consistency. Dominant in: INTP, ISTP
Organizes the external world for efficiency and results. Values measurable outcomes, clear processes, and getting things done. Natural leadership. Dominant in: ENTJ, ESTJ
Evaluates everything against a deep internal value system. Attuned to authenticity, personal meaning, and emotional integrity. Strong moral compass. Dominant in: INFP, ISFP
Focused on social harmony and group dynamics. Reads and responds to the emotional atmosphere. Creates connection and meets others' emotional needs. Dominant in: ENFJ, ESFJ
The Theory Behind TypeJung
In 1921, Swiss psychiatrist Carl Gustav Jung published "Psychological Types," introducing the concept of cognitive functions. Unlike later simplified interpretations, Jung saw type as a dynamic system where all functions exist but develop at different rates.
The Singer-Loomis Type Deployment Inventory (SLTDI), developed in the 1980s, measures each function independently rather than forcing binary choices. This methodology informs our assessment approach.
Learn more about Jungian typology theory