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
A person with a preference for extraversion benefits from having others act as a sounding board to help them clarify and make decisions.
Extraverts often find that too much alone time can be draining and they need to be around people to recharge.
Introversion
A person with a preference for introversion needs their personal space to think clearly and make decisions. They appreciate silence even around others.
Introverts often find being around others is draining and they need alone time to recharge.
Planned
Those with a preference for a planned approach find schedules and routines comforting. They like to know what to expect.

They tend to be proactive, starting their projects when they are assigned. They like to finish projects early if possible. Having work unfinished with a rapidly approaching deadline can provoke feelings of anxiety for them. They enjoy a clear sense of purpose and the feeling of accomplishment.

Spontaneous
Those with a preference for a spontaneous approach find schedules and routines restricting. They like the excitement of new things and unknown outcomes.
They may not show progress on a project until the last minute. A sense of urgency stimulates effective thinking for them. They excel at improvising in a pinch and making do with the resources already right in front of them right now.
Hands-On
Individuals who prefer hands-on gathering of information tend to focus on “what is” right now in the present moment. They appreciate clear objectives and tangible results. They enjoy doing things. They prefer to start with a known example from prior experience and modify.
Theoretical

Individuals who prefer theoretical gathering of information tend to focus on “what could be” in the future. They appreciate looking at the big picture and creatively connecting the dots. They enjoy learning things. They prefer to start with a blank slate and imagine possibilities.

Objective
Individuals who prefer making decisions objectively seek clarity and have a sincere need to evaluate and improve. They are quick to point out flaws and will question anything that seems illogical even if it comes from someone in a position of authority.
They place a high-value on self-sufficiency. They tend to measure themselves by their knowledge or skills.
Subjective
Individuals who prefer making decisions subjectively need to know that others care how they feel. They enjoy being an integral part of a strong support network. They like to encourage others and be recognized for being considerate.
They place a high value on personal connections. They tend to measure themselves by the amount of approval they receive from others.