Differentiation

1. Etymology

Differentiation names the separation of parts from a whole, necessary for conscious access to the psychological functions. Related: untangle; resolve; typology; individuation.

2. Plain summary

So long as a function is fused with others—thinking with feeling, feeling with sensation—it remains archaic, unable to operate on its own. Undifferentiated thinking mixes continually with sensations, feelings, intuitions; undifferentiated feeling mixes with sensations and fantasies. Ambivalence and inhibitions follow.

Differentiation separates the function from other functions and its parts from each other. Without it, direction is impossible—goal-directed use depends on eliminating the irrelevant. Samuels adds: natural growth and conscious undertaking; opposites must differentiate before conscious synthesis; individuation requires it—yet intellect’s love of discrimination needs compensatory symbolism of wholeness.

Examples (exhaustive house list for this Index lemma — common differentiation motifs named across Jung’s essays and standard Jungian lexica; not a claim that Jung’s CW contains only these):
separate parts from whole; conscious access to functions; vs archaic fusion; undifferentiated = mixed functions; ambivalence / inhibition; direction requires elimination of irrelevant; natural growth + conscious work; opposites fused then differentiated; required for individuation; compensate discrimination with wholeness symbolism; ego–shadow undifferentiated states.

3. Academic elucidation

In analytical psychology differentiation is separative work for directed consciousness—Definitions ¶705 territory. Descent Press keeps Sharp and Samuels in §4. §5 holds sample CW stamps at CW 6 ¶705.

4. Lexicon

Sharp (1991)

Differentiation. The separation of parts from a whole, necessary for conscious access to the psychological functions. So long as a function is still so fused with one or more other functions… it is in an archaic condition… Differentiation consists in the separation of the function from other functions… Without differentiation direction is impossible…

(Sharp, 1991) — cites CW 6 ¶705 in Sharp’s lemma.

Samuels, Shorter & Plaut (1986) — differentiation p. 45

differentiation A word frequently used by Jung meaning to distinguish parts from a whole, to untangle, to separate what was formerly joined unconsciously… Differentiation is both a natural process of growth and a conscious psychological undertaking… INDIVIDUATION is a process that requires differentiation…

(Samuels, Shorter, & Plaut, 1986, p. 45)

5. CW concordance — sample, not exhaustive

DIFFERENTIATION means the development of differences, the separation of parts from a whole. In this work I employ the concept of differentiation chiefly with respect to the psychological functions… So long as a function is still so fused with one or more other functions—thinking with feeling, feeling with sensation, etc.—that it is unable to operate on its own, it is in an archaic condition, i.e., not differentiated…
(Jung, 1921/1971, CW 6, pp. 589–590, ¶705)

See also: function; typology; individuation; opposites; wholeness; shadow; thinking; feeling; sensation; intuition.

References

Jung, C. G. (1971). Psychological types [Definitions]. In H. Read, M. Fordham, G. Adler, & W. McGuire (Eds.), The collected works of C. G. Jung (R. F. C. Hull, Trans.) (Vol. 6, pp. 589–590, ¶705). Princeton University Press. (Original work published 1921)

Samuels, A., Shorter, B., & Plaut, F. (1986). A critical dictionary of Jungian analysis. Routledge.

Sharp, D. (1991). Jung lexicon: A primer of terms & concepts. Inner City Books.