Jungian Mental Mechanisms
Everyone possesses all of the mental mechanisms described here and the free will to apply them to different life circumstances. Some of us have come to clearly favor one mechanism over its opposite, either by way of a natural-born inner disposition or as an adaptation to outer circumstances.
Extraversion: describes an outward orientation toward people and things

A person who favors extraversion likes to study in a group to process thoughts externally through dialogue with others. They often speak using a fast pace and expressive tones.
Introversion: describes an inward orientation toward ideas and concepts

A person who favors introversion is likely to study alone in a quiet place where they can process thoughts inside their head. They tend to speak using a moderate pace and quiet voice.
Planned: a more structured way of operating within the world

Someone who favors a planned approach will typically pack in advance for a trip. They like that sense of closure that comes from having decisions made. They crave consistency and enjoy being prepared.
Spontaneous: a more “see what comes” way of operating in the world

Someone who favors a spontaneous approach will pack at the last minute for a trip. They like to make decisions as circumstances unfold. They crave variety and enjoy improvising.
Hands-On: a concrete way of gathering information, using sensory input

A person who favors hands-on gathering of information trusts only what they can see, hear, touch, taste, and smell. They like to put pieces together one step at a time and “get their hands dirty”.
Theoretical: an intuitive way of gathering information, using insights

A person who favors theoretical gathering of information sees the world in terms of patterns and possibilities. They like to put pieces together from all directions at once and use their imagination.
Objective: decision-making based on logic and impersonal facts

Individuals who prefer to make decisions objectively are able to detach from their emotions and prioritize rationality over personal biases. They tend to debate or defend a point of view.
Subjective: decision-making based on values and personal impact

Individuals who prefer to make decisions subjectively feel comfortable letting their emotions guide them towards choices that feel good for everyone involved. They tend to go along with what others want.