Physiological Foundations
The Four Modes
Introversion and Extraversion
Why is the BTSA Different?
The Four Modes Here then is an overview of the updated functions as they are observed and experienced.

Sensing/Left Posterior Convexity Individuals with a preference for this mode of thinking process by following a pre-established or pre-programmed order, which has been loaded earlier and can simply be run. They are attentive to details, extremely effective at executing routine, sequential tasks, and most highly motivated to learn procedural applications, which have a clear and immediate use and are presented to them in an organize, step-by-step manner.

Since their brain focuses on the immediate experience and what is ‘real’ and ‘concrete’ in the moment, this type of individual is far more visceral than conceptual in his thinking, preferring to work with tangible objects, rather than either people or ideas.

The fundamental goal of the Posterior Convexity Left/Sensation Type is to have the fullest possible experience of what is immediate and real, in order to be able to produce dependably. For this reason, the Posterior Convexity Left is said to contribute or be responsible for the productive foundations in life.

Feeling/Right Posterior Convexity Individuals who prefer the Posterior Convexity Right/Feeling mode are adept at reading non-verbal communications. Sensitive to rhythms and subtle shifts in mood, shade or tone, they are highly attuned to what is “going on” with others and they put a premium on facilitating harmonious interactions. Not surprisingly, they are unsurpassed at monitoring the emotional climate of an individual or group.

Their thinking is visceral, rather than conceptual, at times almost to the point of being “earthy”. Invariably, their interests are in the “human” rather than the technical aspects of any problem. The fundamental goal of the Posterior Convexity Right/Feeling Type is to create harmony, connectedness and good will in the community. For this reason, the Posterior Convexity Right is said to contribute, or be responsible for the peaceful foundations in life.

Intuition/Frontal Right
Jung characterized intuition as “perception by way of the unconscious” and Frontal Right thinkers excel in the perception of possibilities, patterns and relationships which are not obviously visible.

The Frontal Right brain is a spatial, internal image generating brain, which processes by scanning for broad stroke patterns and by making connections between seemingly unrelated occurrences. It thinks metaphorically and abstractly and is far more interested in concepts than in actual events. Novelty (especially, new ideas and concepts) is highly appealing to this brain, as are visual images. Its greatest liability is that since it is so focused on future possibilities, it may well overlook actualities or “lose touch with reality”.

The fundamental goal of the Frontal Right/Intuitive Type is to discover the furthest reaches of the possible, in order to perceive new patterns, invent new solutions, or solve “theoretically insurmountable” problems. For this reason, the Frontal Right is said to contribute or be responsible for the adaptive in life.

Thinking/Frontal Left Individuals who prefer the Frontal Left/Thinking function are adept, not only at linking ideas together by means of their logical connections, but also at separating entire systems into their component parts. They record information by key concepts, allowing for easier transfer and application from one area or field to another, and are most interested in general operational principles, which assist in the effective use of resources and facilitate technical problem solving and decision making.

Frontal Lefts are more conceptual than visceral, often preferring to analyze and weigh the variables, make a decision, and then delegate the doing of the task to another person. They are neither “present focused” or “future focused”; their concern is with making connections from the past through the present and toward the future.

The fundamental goal of the Frontal Left/Thinking Type is to create rational order and make sound plans and decisions based on logical analysis. For this reason, the Frontal Left is said to contribute or be responsible for the Directing or Prioritizing function in life.
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