Dream dialogue and retrogression: neurolinguistic origins of Freud's "replay hypothesis."

At the phenomenological level, Sigmund Freud in the Traumdeutung presents dream speeches that are ubiquitous, and syntactically and pragmatically usually well-formed (despite occasional lexical anomalies), while at the generative level Freud maintains that these are playbacks, devoid of linguistic creativity, and as such do not violate the theoretically "primary-process," nondiscursive nature of the dreamwork. Neither anecdotal data nor recent systematic experimental evidence lend the "replay hypothesis" convincing support, however. This hypothesis may (like many other aspects of his dream theory) have its particular antecedents in the theoretical constraints of Freud's protopsychoanalytic "Project for a Scientific Psychology." In fact, the hypothesis can be reconciled with the neurological mechanisms of the "Project," though it cannot be specifically derived from them. Freud utilized the concept of functional retrogression from his still earlier, prepsychoanalytic work On Aphasia, thus effecting the best compromise he could between the constraints of his overall dream theory derived from the "Project" and his own observations on the phenomenology of dream speech.