Contrary to popular belief, Jung has his own descriptions of the cognitive functions. They are detailed and admittedly a bit hard to decipher. Linda V. Berens and Dario Nardi describe Se and Ne as being simultaneous in nature and involving perception of many things at once, which leads to random activity as the outer world is scanned for additional information. Readers can decide if the distinctions are true as well, namely that Se can appear like Te in being used when there is a focus on facts and an empirical approach; and Ne appear like Fe by focusing on people and their interactions. But as you will see in this thread, Jung does consider Se and Ne to be similar in many ways:
Sensation, in the extraverted attitude, is most definitely conditioned by the object. As sense-perception, sensation is naturally dependent upon the object. But, just as naturally, it is also dependent upon the subject; hence, there is also a subjective sensation, which after its kind is entirely different from the objective.
In the extraverted attitude this subjective share of sensation, in so far as its conscious application is concerned, is either inhibited or repressed. As an irrational function, sensation is equally repressed, whenever a rational function, thinking or feeling, possesses the priority, ie. it can be said to have a conscious function, only in so far as the rational attitude of consciousness permits accidental perceptions to become conscious contents; in short, realizes them. The function of sense is, of course, absolute in the stricter sense; for example, everything is seen or heard to the farthest physiological possibility, but not everything attains that threshold value which a perception must possess in order to be also apperceived.
It is a different matter when sensation itself possesses priority, instead of merely seconding another function. In this case, no element of objective sensation is excluded and nothing repressed (with the exception of the subjective share [p. 457] already mentioned). Sensation has a preferential objective determination, and those objects which release the strongest sensation are decisive for the individual's psychology. The result of this is a pronounced sensuous hold to the object.
Sensation, therefore, is a vital function, equipped with the potentest [sic] vital instinct. In so far as objects release sensations, they matter; and, in so far as it lies within the power of sensation, they are also fully accepted into consciousness, whether compatible with reasoned judgment or not. As a function its sole criterion of value is the strength of the sensation as conditioned by its objective qualities. Accordingly, all objective processes, in so far as they release sensations at all, make their appearance in consciousness.
It is, however, only concrete, sensuously perceived objects or processes which excite sensations in the extraverted attitude; exclusively those, in fact, which everyone in all times and places would sense as concrete. Hence, the orientation of such an individual corresponds with purely concrete reality. The judging, rational functions are subordinated to the concrete facts of sensation, and, accordingly, possess the qualities of inferior differentiation, i.e. they are marked by a certain negativity, with infantile and archaic tendencies. The function most affected by the repression, is, naturally, the one standing opposite to sensation, viz. intuition, the function of unconscious perception.
Sensation
Sensation, in the extraverted attitude, is most definitely conditioned by the object. As sense-perception, sensation is naturally dependent upon the object. But, just as naturally, it is also dependent upon the subject; hence, there is also a subjective sensation, which after its kind is entirely different from the objective.
In the extraverted attitude this subjective share of sensation, in so far as its conscious application is concerned, is either inhibited or repressed. As an irrational function, sensation is equally repressed, whenever a rational function, thinking or feeling, possesses the priority, ie. it can be said to have a conscious function, only in so far as the rational attitude of consciousness permits accidental perceptions to become conscious contents; in short, realizes them. The function of sense is, of course, absolute in the stricter sense; for example, everything is seen or heard to the farthest physiological possibility, but not everything attains that threshold value which a perception must possess in order to be also apperceived.
It is a different matter when sensation itself possesses priority, instead of merely seconding another function. In this case, no element of objective sensation is excluded and nothing repressed (with the exception of the subjective share [p. 457] already mentioned). Sensation has a preferential objective determination, and those objects which release the strongest sensation are decisive for the individual's psychology. The result of this is a pronounced sensuous hold to the object.
Sensation, therefore, is a vital function, equipped with the potentest [sic] vital instinct. In so far as objects release sensations, they matter; and, in so far as it lies within the power of sensation, they are also fully accepted into consciousness, whether compatible with reasoned judgment or not. As a function its sole criterion of value is the strength of the sensation as conditioned by its objective qualities. Accordingly, all objective processes, in so far as they release sensations at all, make their appearance in consciousness.
It is, however, only concrete, sensuously perceived objects or processes which excite sensations in the extraverted attitude; exclusively those, in fact, which everyone in all times and places would sense as concrete. Hence, the orientation of such an individual corresponds with purely concrete reality. The judging, rational functions are subordinated to the concrete facts of sensation, and, accordingly, possess the qualities of inferior differentiation, i.e. they are marked by a certain negativity, with infantile and archaic tendencies. The function most affected by the repression, is, naturally, the one standing opposite to sensation, viz. intuition, the function of unconscious perception.