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Science & ResearchAug 24, 2026

Novelty and anxiety differentially shape hippocampal assembly reactivation and sequence replay during REM sleep

Mammalian sleep alternates between rapid eye movement (REM) and non-REM (NREM) phases, each with distinct patterns of neural activity.

Mammalian sleep alternates between rapid eye movement (REM) and non-REM (NREM) phases, each with distinct patterns of neural activity. The replay of waking experience during NREM sleep is a well-established substrate for memory consolidation, but whether comparable reactivation…

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