Diachronic Transmission of Signifiers

Diachronic Transmission of Signifiers names the process by which real acts — deeds, events, traumas — are taken up into the signifying chain and acquire a life that extends across time, binding together past and future meanings in a web that is irreducible to either the intentionality of the agent or the immediate affective context in which the acts occurred. The concept marks a double axis: the diachronic axis, along which signifiers are strung sequentially and temporally (so that meaning is always retroactively constituted — the earlier term is only fixed by what comes after, in a movement Lacan elsewhere describes as après-coup or Nachträglichkeit); and the synchronic axis, along which signifiers coexist structurally and exert mutual determination at any given moment. Together these axes constitute the symptom — not as the residue of an unmetabolized emotional wound or an object-relational failure, but as a signifying formation woven from the intersection of these two dimensions.

The theoretical force of the concept is its anti-adaptive, anti-causal claim: if real acts become signifiers and are transmitted diachronically, then the symptom cannot be dissolved by correcting the "distorted" reality-perception of the ego, nor by supplying a "corrective emotional experience" (the ego-psychological and object-relational remedies Lacan targets). Signifiers are arbitrary yet overdetermined; they do not track adaptive reality but generate their own complex web of meanings that impacts reality from within the symbolic order. The transmission in question is therefore structural rather than causal: it is the logic of the signifying chain — not biographical contingency alone — that determines how acts become symptoms and how symptoms persist, transform, and produce effects across a subject's history.

This concept appears in derek-hook-calum-neill-stijn-vanheule-reading-lacan-s-ecrits-from-the-freudian-t (p. 85), in the context of Lacan's polemic against Ego Psychology and object-relations theory. It functions as a positive counterproposal to the adaptive model: where Adaptation (cross-referenced here) assumes that the subject's task is to fit itself to an external environment through ego-mediated reality-testing, diachronic transmission of signifiers insists that the subject is constituted by a symbolic order that overrides any such adaptive calibration. Acts do not remain as memories to be "worked through" emotionally; they become signifiers that circulate with their own temporal life, obeying the logic of the chain rather than the logic of the organism's environmental fit. The concept is thus a direct specification of what Adaptation — as a critical foil — fails to account for.

The concept also intersects with Identification and the Imaginary. Identification is the mechanism by which a subject takes on a signifying trait from the Other; diachronic transmission is the temporal axis along which such traits propagate and accrue overdetermination. The Imaginary register — with its specular, dyadic, and affectively immediate character — is precisely what diachronic signifying transmission exceeds: to reduce the symptom to imaginary misrecognition or object-relational failure is to miss the symbolic-diachronic dimension. The cross-reference to Ego Psychology confirms the polemical frame: the concept is mobilized against the ego-psychological reduction of psychoanalysis to a corrective, adaptive, and dyadic enterprise, asserting instead that the unconscious is structured like a language whose signifiers transmit themselves across time in ways the ego can neither fully master nor simply "adapt" to.

Reading Lacan's Écrits: From 'The Freudian Thing' to 'Remarks on Daniel Lagache'Derek Hook, Calum Neill & Stijn Vanheule (eds.) · 2019 (p.85)

real acts can take on diachronic lives as signifiers … they are functions of the lives of signifiers—and acts that become signifiers—that are woven together diachronically and synchronically

The phrase "diachronic lives" is theoretically loaded because it ascribes temporally extended agency to signifiers themselves rather than to the subject or the act — the signifier lives, propagates, and determines meaning beyond any single moment of utterance. The paired terms "diachronically and synchronically" invoke the full Saussurean-Lacanian double axis of the signifying chain, making explicit that symptoms are constituted at the intersection of sequential (temporal) and structural (simultaneous) signifying relations, not by emotional causality or adaptive failure.