Factor c

Lacan's "factor c" is a theoretical operator introduced to account for the culturally specific inflection of the symbolic order as it bears on the practice and theory of psychoanalysis in any given milieu. It names the constant that characterises a particular culture — the invariant feature of one symbolic formation as distinguished from another — and functions as an explanatory variable for why psychoanalysis takes the particular theoretical distortions it does in different national and historical contexts. The concept is not a sociological description but a structural claim: just as the symbolic order is universal in form yet always instantiated in particular configurations, factor c captures the particularist residue that every culture introduces into the universal structure of the signifying chain.

In its primary application, Lacan identifies the American factor c as "ahistoricism" — an ideological orientation that strips the subject and its symptoms of their historical, structural, and dialectical determinations. This cultural constant is held directly responsible for the characteristic theoretical deformations of Ego Psychology: its naturalism, its adaptive telos, and its erasure of the unconscious in favour of an autonomous, conflict-free ego. Factor c thus operates as a kind of cultural coefficient — a measurable bias that bends the transmission and interpretation of Freud's teaching toward the prevailing values of a given social formation, in this case toward the American capitalist emphasis on pragmatic adjustment and measurable functioning.

The concept appears in Evans's introductory dictionary (evans-dylan-an-introductory-dictionary-of-lacanian-psychoanalysis-taylor-francis), where it is glossed as part of Lacan's polemic against Ego Psychology. It sits at the intersection of three canonical concepts: the Symbolic Order, Particularism, and Ego Psychology. Factor c is best understood as a specification of how the Symbolic Order — which is universal in its differential, signifying structure — is always particularised by the historically and culturally specific configuration of one milieu versus another. The symbolic order provides the universal frame; factor c names the particular cultural constant that inflects that frame. This is consistent with the Particularism canon's insight that particularity is never simply emancipatory but can function as a conservative force that forecloses universal structural insight.

In relation to Ego Psychology and Adaptation, factor c performs a critical-diagnostic function: it explains the theoretical errors of American ego psychology not as individual intellectual failures but as structurally produced outcomes of the cultural symbolic formation in which that school developed. Ahistoricism as America's factor c generates the adaptive telos — the assumption that the subject must fit its environment — because a culture that disavows historicity will naturally flatten the subject's desire, unconscious, and symptom into a problem of environmental adjustment. Factor c is thus neither reducible to a signifier in the strict sense nor to the full symbolic order; it operates at the level of what the Signifier canon calls the "differential system," insofar as any given culture's factor c shapes which signifiers circulate, which are privileged, and which structural dimensions of the unconscious are systematically occluded.

An Introductory Dictionary of Lacanian PsychoanalysisDylan Evans · 1996 (page unknown)

Factor c is 'the constant characteristic of any given cultural milieu' (E, 37): it is an attempt to designate that part of the symbolic order which marks the particular features of one culture as opposed to another

The phrase "constant characteristic of any given cultural milieu" is theoretically loaded because it imports a quasi-scientific, algebraic vocabulary ("constant," "factor") into cultural analysis, positioning culture not as a vague background but as a measurable structural variable within the symbolic order; the second clause then immediately situates this constant as internal to the symbolic order itself — culture is not outside language and structure but is a specific differential articulation within it, marking particularity against universality.