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Emotional arousal modulates oscillatory correlates of targeted memory reactivation during NREM, but not REM sleep.

Abstract：

:Rapid eye movement (REM) sleep is considered to preferentially reprocess emotionally arousing memories. We tested this hypothesis by cueing emotional vs. neutral memories during REM and NREM sleep and wakefulness by presenting associated verbal memory cues after learning. Here we show that cueing during NREM sleep significantly improved memory for emotional pictures, while no cueing benefit was observed during REM sleep. On the oscillatory level, successful memory cueing during NREM sleep resulted in significant increases in theta and spindle oscillations with stronger responses for emotional than neutral memories. In contrast during REM sleep, solely cueing of neutral (but not emotional) memories was associated with increases in theta activity. Our results do not support a preferential role of REM sleep for emotional memories, but rather suggest that emotional arousal modulates memory replay and consolidation processes and their oscillatory correlates during NREM sleep.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Lehmann M,Schreiner T,Seifritz E,Rasch B

doi

10.1038/srep39229

subject

Has Abstract

pub_date

2016-12-16 00:00:00

pages

39229

issn

2045-2322

pii

srep39229

journal_volume

6

pub_type

杂志文章

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