Long-term cumulative structural priming persists for (at least) one week.

We present an experiment that explores the degree to which cumulative structural priming effects of the sort reported in Kaschak (Memory and Cognition 35:925-937, 2007) persist over the course of a week. In the first session of the experiment, participants completed written sentence stems that were designed to bias them toward producing the double object (Meghan gave Michael a toy) or prepositional object (Meghan gave a toy to Michael) construction. Participants returned for a second session of the experiment a week later. We observed that the biases established in the first phase of the experiment affected performance in the second phase. That is, the cumulative priming effect persisted for a week. The implications of this result for theories of language production are discussed.