Esc to close ↑↓ to navigate Enter to select

The Cognitive Functions

Hey, I’m Erik Thor—a developer, psychologist, and writer. I explore personality spectrums, cognitive functions, and growth. Read my story or support my work.

Campaign

Support My Crowdfunding Campaign

Help me build the next generation of personality typing platforms.

Back Campaign

Want to understand your current cognitive function patterns? Take the cognitive function test.

Intuition

Extroverted iNtuition

When you diverge from the path and try something completely different, the practice is to then return to yourself, to ask which of these open doors actually belongs to you, letting exploration feed a deeper sense of identity rather than dissolve it.

Intuitive Perceiving

When you break the routine and diverge from the path to see what happens, the practice is to then return to yourself and ask what you actually found, letting exploration deepen identity rather than perpetually defer it.

Intuitive Judging

When you feel the shape of where things are heading and begin organizing your life around it, the practice is to then return to what is actually here, letting the vision be informed by the present rather than imposed upon it.

Introverted iNtuition

When you develop a theory or philosophy about how things fundamentally work, the practice is to then bring it down into contact with the real world, testing it against what is actually here, letting the texture of lived experience sharpen or complicate what felt so clear in the abstract.

Thinking

Extroverted Thinking

When you apply what the data says works for most people, the practice is to then ask whether it works for you specifically, letting the general truth become a starting point for personal discernment rather than a substitute for it.

Thinking Perceiving

When you follow a question to its honest conclusion and name the flaw without flinching, the practice is to then ask how it can be heard, letting accuracy move toward the other person rather than stop at being correct.

Thinking Judging

When you apply a logical process and let the engineering carry you through, the practice is to then bring the personal touch back in, letting the structure serve a human outcome rather than exist independent of one.

Introverted Thinking

When you work through a problem until the internal logic is clean and nothing is left unaccounted for, the practice is to then ask whether the problem was worth solving, letting precision serve something real rather than exist for its own sake.

Feeling

Extroverted Feeling

When you listen closely to what other people are feeling and let their reality land in you, the practice is to then offer what you actually think, letting your honest perspective become a gift to the exchange rather than a disruption of it.

Feeling Perceiving

When you bring nuance and personal taste to something and find the texture that makes it feel true, the practice is to then ask what it is all in service of, letting the sensitivity find a direction rather than remain beautifully unresolved.

Promotion

My new 16 personalities test

Want to discover your personality at work, at home, and in groups?

Take test
Feeling Judging

When you find exactly the right tone and framing, the words that will land warmly and be received rather than rejected, the practice is to then ask whether the precision of what you meant survived the softening, letting harmony serve honesty rather than replace it.

Introverted Feeling

When you have a strong personal reaction and know what feels right to you, the practice is to then move toward other people with that clarity, letting your conviction become a way of connecting rather than a way of withdrawing.

Sensing

Extroverted Sensing

When you observe something exactly as it is, without adding theory or interpretation, the practice is to then ask what it points toward, what larger pattern it belongs to, letting the raw detail become the beginning of understanding rather than the end of it.

Sensing Perceiving

When you do something hands-on and let the doing teach you what the thinking never could have, the practice is to then ask what it means beyond itself, letting physical knowledge open toward purpose rather than stop at sensation.

Sensing Judging

When you show up consistently to what has proven itself worth tending to, the practice is to then ask whether it still fits, letting reliability remain a choice rather than become a default you forgot to question.

Introverted Sensing

When you return to something familiar and settle back into a shape that was already there waiting for you, the practice is to then carry that groundedness out into the new, using what you know as a foundation for what you haven’t tried yet rather than a reason to stay put.

Carl Jung first described the cognitive functions in Psychological Types in 1921, but he was careful about what he was claiming. He called them the instrumentarium, a set of conceptual tools, not a map of what actually exists in nature. The functions were never meant to be taken as fixed categories of a person. They were a working vocabulary for something that resists vocabulary, the way consciousness orients itself in different moments toward different kinds of experience.

What Jung was really tracking was movement. He observed that when a person fixates on one mode of engaging with the world, the others don’t disappear. They go underground. And his deeper interest was always in what he called the Transcendent Function, the psyche’s capacity to hold apparent opposites together and move toward something more whole. Individuation, for Jung, was not the project of perfecting your preferred functions. It was the gradual recognition that you are not any single function at all. You are the awareness that moves between them.

I want to carry that further.

The functions are not things you have. They are states that appear in consciousness. Introverted intuition arrives when you go quiet, and something clarifies. Extroverted sensing happens when you stop interpreting experience and simply let it land. These states are not summoned by effort or manufactured through will. They arise, the way a particular quality of attention arises when you are genuinely curious about something, or the way stillness arrives when you finally stop bracing against it. You recognize them when they come. You do not produce them.

The trouble begins not with having a preferred state but with identifying with it. When one function captures your full attention and holds it, it starts to feel like you, like the whole of what you are. This is what I mean by hyperfixation. It is not a personality type. It is something more like a narrowing, a reduction of awareness to a single aperture. The person who has collapsed entirely into analytical thinking is not exercising a strength. They are stuck. The person who can only move forward when their feelings confirm the direction has not honored their sensitivity. They have been consumed by it. In both cases, what is lost is not some opposite function but something more fundamental: the awareness that was always larger than any single mode of engagement.

When this happens, one function becomes dominant, and another recedes so far from conscious access that it starts operating in shadow, appearing as blind spots, overreactions, the strange clumsiness we show in the areas we have most neglected. But this is not a structural feature of your personality. It is a consequence of identification. It is what happens when awareness contracts around one part of itself and forgets the rest.

The practice I am describing is not the project of balancing your functions or developing your weaknesses into strengths. It is something closer to what Jung pointed toward with the Transcendent Function: learning to move. Not to optimize any single state, but to flow between them, recognizing each as it arrives, staying in it fully while it serves, and releasing it when something else is called for. The introvert who can fully step into extroverted sensing when the moment calls for it has not become extroverted. They have become more themselves, more complete, more fluid in their awareness.

The sixteen descriptions that follow are not a typology. They are invitations to recognize states you have already been in, and to notice what each one makes possible, and what it quietly forecloses, when you stay in it too long.

Campaign

Support My Crowdfunding Campaign

Help me build the next generation of personality typing platforms.

Back Campaign
Erik Thor

Erik Thor

Writer, Psychologist & Programmer

I explore personality spectrums, Jungian cognitive functions, and self-ownership. Running side projects as a coach, online creator, and author, my goal is to build tools and publish articles that promote collective harmony, self-empowerment, and growth.

Upcoming Book by Erik Thor

The Age of Self-Realization

An exploration of what it means to live in alignment with your true values. In a world full of external noise and identity traps, this book is about overcoming internal conflict, understanding your cognitive patterns, and finding the courage to grow into who you are.


Loading discussion…