Editing Socionics (section)

==Jung's psychological types==
{{Main|Psychological Types}}
[[Carl Jung]] describes four ''psychological functions'' that are capable of becoming applicable psychically, but to differing degrees in individuals:<ref name=Psychological_Types>Jung, Carl G., Psychological Types (The Collected Works of Carl G. Jung, Vol.6), 1976 (1921), {{ISBN|0-691-01813-8}} The chapter X, ''[http://psychclassics.yorku.ca/Jung/types.htm General description of types]'' contains descriptions of basic psychological functions and 8 major psychological types.</ref>

* Sensation – all perceptions by means of the sense organs
* Intuition – perception by way of the unconscious, or perception of unconscious events
* Thinking (in socionics, Logic) – judgement of information based on reason
* Feeling (in socionics, Ethics) – judgement of information based on sentiment

In addition to these four types, Jung defines a polarity between introverted and extraverted personalities. This distinction is based on how people invest energy: either into the inner, subjective, psychical world (usually called {{lang|de|Seele}}, soul, by Jung), or toward their outer, objective, physical world (including one's body).

By Jung's rules, 16 psychological types exist. But in his book "Psychological Types" he described in detail only 8, distinguished by the 8 possible dominant functions. Contrary to Socionics and MBTI, Jung did not conclude that the types had two introverted functions and two extroverted functions. He instead outlined that extroverted personality types had a Dominant extroverted function, with the remaining functions being of varying if lower levels of development that range from being Inferior introverted functions that are necessarily retarded to auxiliary functions that lie in the middle.<ref>"As a consequence of this one-sided development, one or more functions are necessarily retarded. These functions may properly be called inferior ..." (Jung, [1921] 1971:Def. Inferior Function, par. 763).</ref>