Contributed Talk Sessions | Poster Sessions | All Posters | Search Papers

Poster Session A: Tuesday, August 12, 1:30 – 4:30 pm, de Brug & E‑Hall

Representations of past and future event boundaries from naturalistic experience are reactivated in the Default Mode Network during recall

Eleanor Spens¹, Mathias Sablé-Meyer², Avital Hahamy²; ¹University of Oxford, ²University College London, University of London

Presenter: Avital Hahamy

Replay, the reactivation of neural sequences from past experiences, has been postulated to support memory consolidation and planning during real-time animal behavior. We test this hypothesis in a human fMRI movie-recall task. We find that during recall, Default Mode Network regions reactivate both past and future representations of movie event boundaries (moments of scene transitions), potentially supporting the tracking and planning of narrative recall. We postulate that at event boundaries, replay-like mechanisms in humans construct a cognitive model of unfolding experiences which facilitates narrative regeneration from memory.

Topic Area: Brain Networks & Neural Dynamics

Extended Abstract: Full Text PDF