Extraverted Feeling judgement, Fe, is the shadow function of the INTP, being by far the least developed of his faculties. Indeed, mature use of Fe typically doesn't begin to take shape until well into middle age. Feelings and emotions are regarded with suspicion and perhaps fear by the INTP and he may be keen to avoid considering or showing them. At the same time, he may experience a certain fascination for the emotional world, but he is desperate to de-personalize any thoughts on that area. He is compelled to subject his emotions to continual analysis, the Ti core literally suppressing the Fe shadow, attacking Fe with accusations of irrationality. He resists letting his feelings go, fearing that to do so would be to relinquish control to an unknown force. He believes emotions to be of a lesser substance than logic and his natural goal would be to conquer his emotions with pure rationality.
Much of the above demonstrates the immature and underdeveloped approach with which the INTP meets his emotional side. In reality, the extraverted nature of the INTP's feeling judgement means that his emotions, when visible, are pretty direct and easy to assess. Since the INTP normally wishes to hide his emotions; when they do come out, they do so in outbursts with an almost childlike innocence. There is a sense of all-or-nothing and, when visible, there is nothing enigmatic about the feelings of an INTP: indeed, shadow functions always seem pretty raw and basic.
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For the INTP, emotions are seen as something mysterious and as uncontrollable as they are unalterable. Hence, the root of the fear of emotions is the fear that they cannot be controlled. Hence, when an INTP does finally respond emotionally to something, his emotions are indeed left uncontrolled, raw and open. However, when witnessing the emotional response of another person, the INTP intensely resists any similar emotion of his own. An example of this is when watching a 'weepy' cinema film in which some heart-wrenching scene is being shown. The INTP despises the attempt by the filmmaker to influence his emotions and is more likely to sneer than cry. This response has nothing to do with arrogance, however. Rather it is the INTP defensively avoiding exposing what he knows to be his weak point. Where an INTP may experience his own emotional response during a film is when he has had the chance to consider consequences of a element of the film. Hence, emotional response to media input usually occurs with a certain independence of will, which could appear enigmatic to others.
