(introverted Feeling cue)
ISFP, INFP, ESFP, ENFP, INTJ, ISTJ, ENTJ, ESTJ
ISFP, INFP, ESFP, ENFP, INTJ, ISTJ, ENTJ, ESTJ
Key characteristics:
- Expresses upwards vertically
- Entire mouth is lifted up due to central muscle tension (on and around the nose, running up to the inner corners of the eyes and down to the upper lip)
- It’s common to see deep nasolabial folds and creasing along the nose while smiling, but there are exceptions due to age and individual features
- Lack of peripheral muscle tension (on the sides of the face extending from the corners of the mouth to the sides of the lower jaw)
- Mouth does NOT widen dramatically
Hypothetical functions and mechanisms:
- There are many examples of opposites in the brain, such as how the left hemisphere of the brain controls the right side of the body. Cognitive functions also seem to be arranged in opposition in that people with Fi must have Te. Emotion could have turned inward so thinking could orient outward, which perhaps has practical benefits like productivity
- Fi may provide more emotional desire and motivation independent of the external emotional atmosphere, which potentially creates an advantage when competing for resources and opportunities. The levator (see image below) muscles could be connected to Fi, causing the scrunching smile as a byproduct without any aesthetic purpose