V. Basics of the Functional Stack

Hi, dearest reader! Hope your week has been going well.

Today I’m going to talk about the idea of the functional stack. Our main man Carl Jung comes back into the picture again. We’ve talked about how Jung noticed how people were fundamentally different in their extroversion or introversion, or their connections to outer or inner worlds. To get a better idea of how each person acts in these worlds, the functional stack comes into play. In the functional stack, there are processes to obtain information, known as perception, and ways to organize/evaluate that information, known as judgement.The perception processes are intuition and sensing. The judgement processes are thinking and feeling. Everyone has these four processes, but where the personality types differ is a.) the order and b.) whether the processes are introverted or extroverted. How these functions work together makes people who they are.

The eight functions are listed below with a brief description.


Extroverted Sensing (Se) – Noticing things in the physical world. Experiencing things in the immediate context.

Introverted Sensing (Si) – Going over past experiences. Making connections to what you already know.

Extroverted Intuition (Ne) – Interpreting situations and relationships. Picking up hidden meanings and interconnections.

Introverted Intuition (Ni) – Focusing on thoughts, ideas and concepts. “Connecting the dots” and predicting what is to come in the future.


Extroverted Thinking (Te) – Applying logic. Deciding if something is working or not.

Introverted Thinking (Ti) – Analyzing. Figuring out the principles by which something works.

Extroverted Feeling (Fe) – Making connections. Considering what is appropriate in a group situation.

Introverted Feeling (Fi) – Values based. Deciding if a principle is worth standing up for.

So there’s the 8 functions, but how do they fit into a person’s personality? Well, each person has one sensing function, one intuition function, one thinking function and one feeling function. The difference is whether they are introverted and extroverted, and what their order is. The reason it’s called a functional stack is because some functions are used more than the others. The function that is used the most is called the dominant function. This is the function you use most consciously. The second most used function is called the auxiliary function. While not as prevalent in your cognition as the dominant function, the auxiliary function still plays a pretty big role in who you are. The third and fourth functions are the tertiary and inferior functions, respectively. These functions are not as expressed as the dominant and auxiliary functions and take some time to develop. Think of them as the left hand of your functions (or whatever your non-dominant hand is). Your non-dominant hand is always there, but you don’t do as much with it as your dominant hand. Becoming a well-rounded person involves trying to develop and grow your last two functions.

Here is my functional stack as an INFJ:

Dominant: Introverted Intuition (Ni)

Auxiliary: Extroverted Feeling (Fe)

Tertiary: Introverted Thinking (Ti)

Inferior: Extroverted Sensing (Se)

In other words, my functional stack is Ni, Fe, Ti, Se. Other personality types will have different combinations of those eight functions. Now that I’ve explained this concept, I will be able to talk about how I am able to interact with the world and with others.

I hope this was informative! As always, please send me your comments, feedback and suggestions. I’d love to hear from you. Talk to you all soon!

Seize the day!
13 October 2016 6:45 PM

External links for reference:




Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s