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What can we learn from studying replay in humans?

Nicolas W Schuck, Marit Petzka, Stephen M Fleming

Trends in Cognitive Sciences July 7, 2026 DOI: 10.1016/j.tics.2026.06.013 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Theoretical or philosophical paper Peer reviewed
Keywords Consciousness Cross-species Metacognition Replay
Key points Argues that the assumption linking neural replay to conscious thought in human research limits understanding of replay's relationship to consciousness and cross-species differences.

Abstract

Noninvasive methods are making it possible to study neural replay in humans. Although focused on alignment with rodent findings, human research often tacitly assumes that replay is linked to conscious, deliberate thought. This assumption represents a missed opportunity to investigate the links between replay and consciousness, as well as cross-species differences more broadly.